Home  >  Article  >  php教程  >  PHP gets package information of APK

PHP gets package information of APK

WBOY
WBOYOriginal
2016-10-08 16:04:411202browse

I’ve been too busy during this period. I haven’t blogged for a month. When I have some free time, I feel like recording down the problems I encountered during development

When php uploads the Android apk package, it needs to obtain the information in the Android apk package

<?<span style="color: #000000;">php

</span><span style="color: #008000;">/*</span><span style="color: #008000;">解析安卓apk包中的压缩XML文件,还原和读取XML内容

依赖功能:需要PHP的ZIP包函数支持。</span><span style="color: #008000;">*/</span>

<span style="color: #0000ff;">include</span>('./Apkparser.php'<span style="color: #000000;">);

</span><span style="color: #800080;">$appObj</span>    = <span style="color: #0000ff;">new</span><span style="color: #000000;"> Apkparser(); 

</span><span style="color: #800080;">$targetFile</span> = a.apk;<span style="color: #008000;">//</span><span style="color: #008000;">apk所在的路径地址</span>

<span style="color: #800080;">$res</span>     = <span style="color: #800080;">$appObj</span>->open(<span style="color: #800080;">$targetFile</span><span style="color: #000000;">);

</span><span style="color: #800080;">$appObj</span>->getAppName();         <span style="color: #008000;">//</span><span style="color: #008000;"> 应用名称</span>

<span style="color: #800080;">$appObj</span>->getPackage();        <span style="color: #008000;">//</span><span style="color: #008000;"> 应用包名</span>

<span style="color: #800080;">$appObj</span>->getVersionName();    <span style="color: #008000;">//</span><span style="color: #008000;"> 版本名称</span>

<span style="color: #800080;">$appObj</span>->getVersionCode();    <span style="color: #008000;">//</span><span style="color: #008000;"> 版本代码</span>
?>

The following is the Apkparser class package. Copy the following code and save it as Apkparser.php to execute the above code

<?<span style="color: #000000;">php
</span><span style="color: #0000ff;">class</span><span style="color: #000000;"> ApkParser{
</span><span style="color: #008000;">//</span><span style="color: #008000;">----------------------
// 公共函数,供外部调用
//----------------------</span>
  <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">function</span> open(<span style="color: #800080;">$apk_file</span>, <span style="color: #800080;">$xml_file</span>='AndroidManifest.xml'<span style="color: #000000;">){
    </span><span style="color: #800080;">$zip</span> = <span style="color: #0000ff;">new</span><span style="color: #000000;"> \ZipArchive;
    </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$zip</span>->open(<span style="color: #800080;">$apk_file</span>) === <span style="color: #0000ff;">TRUE</span><span style="color: #000000;">) {
      </span><span style="color: #800080;">$xml</span> = <span style="color: #800080;">$zip</span>->getFromName(<span style="color: #800080;">$xml_file</span><span style="color: #000000;">);
      </span><span style="color: #800080;">$zip</span>-><span style="color: #000000;">close();
      </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$xml</span><span style="color: #000000;">){
        </span><span style="color: #0000ff;">try</span><span style="color: #000000;"> {
          </span><span style="color: #0000ff;">return</span> <span style="color: #800080;">$this</span>->parseString(<span style="color: #800080;">$xml</span><span style="color: #000000;">);
        }</span><span style="color: #0000ff;">catch</span> (<span style="color: #0000ff;">Exception</span> <span style="color: #800080;">$e</span><span style="color: #000000;">){
        }
      }
    }
    </span><span style="color: #0000ff;">return</span> <span style="color: #0000ff;">false</span><span style="color: #000000;">;
  }
 
  </span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">function</span> parseString(<span style="color: #800080;">$xml</span><span style="color: #000000;">){
    </span><span style="color: #800080;">$this</span>->xml = <span style="color: #800080;">$xml</span><span style="color: #000000;">;
    </span><span style="color: #800080;">$this</span>->length = <span style="color: #008080;">strlen</span>(<span style="color: #800080;">$xml</span><span style="color: #000000;">);
 
    </span><span style="color: #800080;">$this</span>->root = <span style="color: #800080;">$this</span>->parseBlock(self::<span style="color: #000000;">AXML_FILE);
    </span><span style="color: #0000ff;">return</span> <span style="color: #0000ff;">true</span><span style="color: #000000;">;
  }
 
  </span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">function</span> getXML(<span style="color: #800080;">$node</span>=<span style="color: #0000ff;">NULL</span>, <span style="color: #800080;">$lv</span>=-1<span style="color: #000000;">){
    </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$lv</span> == -1) <span style="color: #800080;">$node</span> = <span style="color: #800080;">$this</span>-><span style="color: #000000;">root;
    </span><span style="color: #0000ff;">if</span> (!<span style="color: #800080;">$node</span>) <span style="color: #0000ff;">return</span> ''<span style="color: #000000;">;
 
    </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$node</span>['type'] == self::END_TAG) <span style="color: #800080;">$lv</span>--<span style="color: #000000;">;
    </span><span style="color: #800080;">$xml</span> = @(<span style="color: #800080;">$node</span>['line'] == 0 || <span style="color: #800080;">$node</span>['line'] == <span style="color: #800080;">$this</span>->line) ? '' : "\n".<span style="color: #008080;">str_repeat</span>('  ', <span style="color: #800080;">$lv</span><span style="color: #000000;">);
    </span><span style="color: #800080;">$xml</span> .= <span style="color: #800080;">$node</span>['tag'<span style="color: #000000;">];
    </span><span style="color: #800080;">$this</span>->line = @<span style="color: #800080;">$node</span>['line'<span style="color: #000000;">];
    </span><span style="color: #0000ff;">foreach</span> (<span style="color: #800080;">$node</span>['child'] <span style="color: #0000ff;">as</span> <span style="color: #800080;">$c</span><span style="color: #000000;">){
      </span><span style="color: #800080;">$xml</span> .= <span style="color: #800080;">$this</span>->getXML(<span style="color: #800080;">$c</span>, <span style="color: #800080;">$lv</span>+1<span style="color: #000000;">);
    }
    </span><span style="color: #0000ff;">return</span> <span style="color: #800080;">$xml</span><span style="color: #000000;">;
  }
 
  </span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">function</span><span style="color: #000000;"> getPackage(){
    </span><span style="color: #0000ff;">return</span> <span style="color: #800080;">$this</span>->getAttribute('manifest', 'package'<span style="color: #000000;">);
  }
 
  </span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">function</span><span style="color: #000000;"> getVersionName(){
    </span><span style="color: #0000ff;">return</span> <span style="color: #800080;">$this</span>->getAttribute('manifest', 'android:versionName'<span style="color: #000000;">);
  }
 
  </span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">function</span><span style="color: #000000;"> getVersionCode(){
    </span><span style="color: #0000ff;">return</span> <span style="color: #800080;">$this</span>->getAttribute('manifest', 'android:versionCode'<span style="color: #000000;">);
  }
 
  </span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">function</span><span style="color: #000000;"> getAppName(){
    </span><span style="color: #0000ff;">return</span> <span style="color: #800080;">$this</span>->getAttribute('manifest/application', 'android:name'<span style="color: #000000;">);
  }
 
  </span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">function</span><span style="color: #000000;"> getMainActivity(){
    </span><span style="color: #0000ff;">for</span> (<span style="color: #800080;">$id</span>=0; <span style="color: #0000ff;">true</span>; <span style="color: #800080;">$id</span>++<span style="color: #000000;">){
      </span><span style="color: #800080;">$act</span> = <span style="color: #800080;">$this</span>->getAttribute("manifest/application/activity[{<span style="color: #800080;">$id</span>}]/intent-filter/action", 'android:name'<span style="color: #000000;">);
      </span><span style="color: #0000ff;">if</span> (!<span style="color: #800080;">$act</span>) <span style="color: #0000ff;">break</span><span style="color: #000000;">;
      </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$act</span> == 'android.intent.action.MAIN') <span style="color: #0000ff;">return</span> <span style="color: #800080;">$this</span>->getActivity(<span style="color: #800080;">$id</span><span style="color: #000000;">);
    }
    </span><span style="color: #0000ff;">return</span> <span style="color: #0000ff;">NULL</span><span style="color: #000000;">;
  }
 
  </span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">function</span> getActivity(<span style="color: #800080;">$idx</span>=0<span style="color: #000000;">){
    </span><span style="color: #800080;">$idx</span> = <span style="color: #008080;">intval</span>(<span style="color: #800080;">$idx</span><span style="color: #000000;">);
    </span><span style="color: #0000ff;">return</span> <span style="color: #800080;">$this</span>->getAttribute("manifest/application/activity[{<span style="color: #800080;">$idx</span>}]", 'android:name'<span style="color: #000000;">);
  }
 
  </span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">function</span> getAttribute(<span style="color: #800080;">$path</span>, <span style="color: #800080;">$name</span><span style="color: #000000;">){
    </span><span style="color: #800080;">$r</span> = <span style="color: #800080;">$this</span>->getElement(<span style="color: #800080;">$path</span><span style="color: #000000;">);
    </span><span style="color: #0000ff;">if</span> (<span style="color: #008080;">is_null</span>(<span style="color: #800080;">$r</span>)) <span style="color: #0000ff;">return</span> <span style="color: #0000ff;">NULL</span><span style="color: #000000;">;
 
    </span><span style="color: #0000ff;">if</span> (<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$r</span>['attrs'<span style="color: #000000;">])){
      </span><span style="color: #0000ff;">foreach</span> (<span style="color: #800080;">$r</span>['attrs'] <span style="color: #0000ff;">as</span> <span style="color: #800080;">$a</span><span style="color: #000000;">){
        </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$a</span>['ns_name'] == <span style="color: #800080;">$name</span>) <span style="color: #0000ff;">return</span> <span style="color: #800080;">$this</span>->getAttributeValue(<span style="color: #800080;">$a</span><span style="color: #000000;">);
      }
    }
    </span><span style="color: #0000ff;">return</span> <span style="color: #0000ff;">NULL</span><span style="color: #000000;">;
  }
 
</span><span style="color: #008000;">//</span><span style="color: #008000;">----------------------
// 类型常量定义
//----------------------</span>
  <span style="color: #0000ff;">const</span> AXML_FILE             = 0x00080003<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> STRING_BLOCK          = 0x001C0001<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> RESOURCEIDS           = 0x00080180<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> START_NAMESPACE       = 0x00100100<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> END_NAMESPACE         = 0x00100101<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> START_TAG             = 0x00100102<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> END_TAG               = 0x00100103<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> TEXT                  = 0x00100104<span style="color: #000000;">;
 
  </span><span style="color: #0000ff;">const</span> TYPE_NULL             =0<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> TYPE_REFERENCE        =1<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> TYPE_ATTRIBUTE        =2<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> TYPE_STRING           =3<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> TYPE_FLOAT            =4<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> TYPE_DIMENSION        =5<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> TYPE_FRACTION         =6<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> TYPE_INT_DEC          =16<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> TYPE_INT_HEX          =17<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> TYPE_INT_BOOLEAN      =18<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> TYPE_INT_COLOR_ARGB8  =28<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> TYPE_INT_COLOR_RGB8   =29<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> TYPE_INT_COLOR_ARGB4  =30<span style="color: #000000;">;
  </span><span style="color: #0000ff;">const</span> TYPE_INT_COLOR_RGB4   =31<span style="color: #000000;">;
 
  </span><span style="color: #0000ff;">const</span> UNIT_MASK             = 15<span style="color: #000000;">;
  </span><span style="color: #0000ff;">private</span> <span style="color: #0000ff;">static</span> <span style="color: #800080;">$RADIX_MULTS</span> = <span style="color: #0000ff;">array</span>(0.00390625, 3.051758E-005, 1.192093E-007, 4.656613E-010<span style="color: #000000;">);
  </span><span style="color: #0000ff;">private</span> <span style="color: #0000ff;">static</span> <span style="color: #800080;">$DIMENSION_UNITS</span> = <span style="color: #0000ff;">array</span>("px","dip","sp","pt","in","mm","",""<span style="color: #000000;">);
  </span><span style="color: #0000ff;">private</span> <span style="color: #0000ff;">static</span> <span style="color: #800080;">$FRACTION_UNITS</span>  = <span style="color: #0000ff;">array</span>("%","%p","","","","","",""<span style="color: #000000;">);
 
  </span><span style="color: #0000ff;">private</span> <span style="color: #800080;">$xml</span>=''<span style="color: #000000;">;
  </span><span style="color: #0000ff;">private</span> <span style="color: #800080;">$length</span> = 0<span style="color: #000000;">;
  </span><span style="color: #0000ff;">private</span> <span style="color: #800080;">$stringCount</span> = 0<span style="color: #000000;">;
  </span><span style="color: #0000ff;">private</span> <span style="color: #800080;">$styleCount</span>  = 0<span style="color: #000000;">;
  </span><span style="color: #0000ff;">private</span> <span style="color: #800080;">$stringTab</span> = <span style="color: #0000ff;">array</span><span style="color: #000000;">();
  </span><span style="color: #0000ff;">private</span> <span style="color: #800080;">$styleTab</span>  = <span style="color: #0000ff;">array</span><span style="color: #000000;">();
  </span><span style="color: #0000ff;">private</span> <span style="color: #800080;">$resourceIDs</span> = <span style="color: #0000ff;">array</span><span style="color: #000000;">();
  </span><span style="color: #0000ff;">private</span> <span style="color: #800080;">$ns</span> = <span style="color: #0000ff;">array</span><span style="color: #000000;">();
  </span><span style="color: #0000ff;">private</span> <span style="color: #800080;">$cur_ns</span> = <span style="color: #0000ff;">NULL</span><span style="color: #000000;">;
  </span><span style="color: #0000ff;">private</span> <span style="color: #800080;">$root</span> = <span style="color: #0000ff;">NULL</span><span style="color: #000000;">;
  </span><span style="color: #0000ff;">private</span> <span style="color: #800080;">$line</span> = 0<span style="color: #000000;">;
 
</span><span style="color: #008000;">//</span><span style="color: #008000;">----------------------
// 内部私有函数
//----------------------</span>
  <span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span> getElement(<span style="color: #800080;">$path</span><span style="color: #000000;">){
    </span><span style="color: #0000ff;">if</span> (!<span style="color: #800080;">$this</span>->root) <span style="color: #0000ff;">return</span> <span style="color: #0000ff;">NULL</span><span style="color: #000000;">;
    </span><span style="color: #800080;">$ps</span> = <span style="color: #008080;">explode</span>('/', <span style="color: #800080;">$path</span><span style="color: #000000;">);
    </span><span style="color: #800080;">$r</span>  = <span style="color: #800080;">$this</span>-><span style="color: #000000;">root;
    </span><span style="color: #0000ff;">foreach</span> (<span style="color: #800080;">$ps</span> <span style="color: #0000ff;">as</span> <span style="color: #800080;">$v</span><span style="color: #000000;">){
      </span><span style="color: #0000ff;">if</span> (<span style="color: #008080;">preg_match</span>('/([^\[]+)\[([0-9]+)\]$/', <span style="color: #800080;">$v</span>, <span style="color: #800080;">$ms</span><span style="color: #000000;">)){
        </span><span style="color: #800080;">$v</span> = <span style="color: #800080;">$ms</span>[1<span style="color: #000000;">];
        </span><span style="color: #800080;">$off</span> = <span style="color: #800080;">$ms</span>[2<span style="color: #000000;">];
      }</span><span style="color: #0000ff;">else</span><span style="color: #000000;"> {
        </span><span style="color: #800080;">$off</span> = 0<span style="color: #000000;">;
      }
      </span><span style="color: #0000ff;">foreach</span> (<span style="color: #800080;">$r</span>['child'] <span style="color: #0000ff;">as</span> <span style="color: #800080;">$c</span><span style="color: #000000;">){
        </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$c</span>['type'] == self::START_TAG && <span style="color: #800080;">$c</span>['ns_name'] == <span style="color: #800080;">$v</span><span style="color: #000000;">){
          </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$off</span> == 0<span style="color: #000000;">){
            </span><span style="color: #800080;">$r</span> = <span style="color: #800080;">$c</span>; <span style="color: #0000ff;">continue</span> 2<span style="color: #000000;">;
          }</span><span style="color: #0000ff;">else</span><span style="color: #000000;"> {
            </span><span style="color: #800080;">$off</span>--<span style="color: #000000;">;
          }
        }
      }
      </span><span style="color: #008000;">//</span><span style="color: #008000;"> 没有找到节点</span>
      <span style="color: #0000ff;">return</span> <span style="color: #0000ff;">NULL</span><span style="color: #000000;">;
    }
    </span><span style="color: #0000ff;">return</span> <span style="color: #800080;">$r</span><span style="color: #000000;">;
  }
 
  </span><span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span> parseBlock(<span style="color: #800080;">$need</span> = 0<span style="color: #000000;">){
    </span><span style="color: #800080;">$o</span> = 0<span style="color: #000000;">;
    </span><span style="color: #800080;">$type</span> = <span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span><span style="color: #000000;">);
    </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$need</span> && <span style="color: #800080;">$type</span> != <span style="color: #800080;">$need</span>) <span style="color: #0000ff;">throw</span> <span style="color: #0000ff;">new</span> <span style="color: #0000ff;">Exception</span>('Block Type Error', 1<span style="color: #000000;">);
    </span><span style="color: #800080;">$size</span> = <span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span><span style="color: #000000;">);
    </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$size</span> < 8 || <span style="color: #800080;">$size</span> > <span style="color: #800080;">$this</span>->length) <span style="color: #0000ff;">throw</span> <span style="color: #0000ff;">new</span> <span style="color: #0000ff;">Exception</span>('Block Size Error', 2<span style="color: #000000;">);
    </span><span style="color: #800080;">$left</span> = <span style="color: #800080;">$this</span>->length - <span style="color: #800080;">$size</span><span style="color: #000000;">;
 
    </span><span style="color: #800080;">$props</span> = <span style="color: #0000ff;">false</span><span style="color: #000000;">;
    </span><span style="color: #0000ff;">switch</span> (<span style="color: #800080;">$type</span><span style="color: #000000;">){
      </span><span style="color: #0000ff;">case</span> self::AXML_FILE:
        <span style="color: #800080;">$props</span> = <span style="color: #0000ff;">array</span><span style="color: #000000;">(
          </span>'line' => 0,
          'tag' => '<?xml version="1.0" encoding="utf-8"?>'<span style="color: #000000;">
        );
      </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;
      </span><span style="color: #0000ff;">case</span> self::STRING_BLOCK:
        <span style="color: #800080;">$this</span>->stringCount = <span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span><span style="color: #000000;">);
        </span><span style="color: #800080;">$this</span>->styleCount  = <span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span><span style="color: #000000;">);
        </span><span style="color: #800080;">$o</span> += 4<span style="color: #000000;">;
        </span><span style="color: #800080;">$strOffset</span> = <span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span><span style="color: #000000;">);
        </span><span style="color: #800080;">$styOffset</span> = <span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span><span style="color: #000000;">);
        </span><span style="color: #800080;">$strListOffset</span> = <span style="color: #800080;">$this</span>->get32array(<span style="color: #800080;">$o</span>, <span style="color: #800080;">$this</span>-><span style="color: #000000;">stringCount);
        </span><span style="color: #800080;">$styListOffset</span> = <span style="color: #800080;">$this</span>->get32array(<span style="color: #800080;">$o</span>, <span style="color: #800080;">$this</span>-><span style="color: #000000;">styleCount);
        </span><span style="color: #800080;">$this</span>->stringTab = <span style="color: #800080;">$this</span>->stringCount > 0 ? <span style="color: #800080;">$this</span>->getStringTab(<span style="color: #800080;">$strOffset</span>, <span style="color: #800080;">$strListOffset</span>) : <span style="color: #0000ff;">array</span><span style="color: #000000;">();
        </span><span style="color: #800080;">$this</span>->styleTab  = <span style="color: #800080;">$this</span>->styleCount > 0 ? <span style="color: #800080;">$this</span>->getStringTab(<span style="color: #800080;">$styOffset</span>, <span style="color: #800080;">$styListOffset</span>) : <span style="color: #0000ff;">array</span><span style="color: #000000;">();
        </span><span style="color: #800080;">$o</span> = <span style="color: #800080;">$size</span><span style="color: #000000;">;
      </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;
      </span><span style="color: #0000ff;">case</span> self::RESOURCEIDS:
        <span style="color: #800080;">$count</span> = <span style="color: #800080;">$size</span> / 4 - 2<span style="color: #000000;">;
        </span><span style="color: #800080;">$this</span>->resourceIDs = <span style="color: #800080;">$this</span>->get32array(<span style="color: #800080;">$o</span>, <span style="color: #800080;">$count</span><span style="color: #000000;">);
      </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;
      </span><span style="color: #0000ff;">case</span> self::START_NAMESPACE:
        <span style="color: #800080;">$o</span> += 8<span style="color: #000000;">;
        </span><span style="color: #800080;">$prefix</span> = <span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span><span style="color: #000000;">);
        </span><span style="color: #800080;">$uri</span> = <span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span><span style="color: #000000;">);
 
        </span><span style="color: #0000ff;">if</span> (<span style="color: #0000ff;">empty</span>(<span style="color: #800080;">$this</span>-><span style="color: #000000;">cur_ns)){
          </span><span style="color: #800080;">$this</span>->cur_ns = <span style="color: #0000ff;">array</span><span style="color: #000000;">();
          </span><span style="color: #800080;">$this</span>->ns[] = &<span style="color: #800080;">$this</span>-><span style="color: #000000;">cur_ns;
        }
        </span><span style="color: #800080;">$this</span>->cur_ns[<span style="color: #800080;">$uri</span>] = <span style="color: #800080;">$prefix</span><span style="color: #000000;">;
      </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;
      </span><span style="color: #0000ff;">case</span> self::END_NAMESPACE:
        <span style="color: #800080;">$o</span> += 8<span style="color: #000000;">;
        </span><span style="color: #800080;">$prefix</span> = <span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span><span style="color: #000000;">);
        </span><span style="color: #800080;">$uri</span> = <span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span><span style="color: #000000;">);
 
        </span><span style="color: #0000ff;">if</span> (<span style="color: #0000ff;">empty</span>(<span style="color: #800080;">$this</span>->cur_ns)) <span style="color: #0000ff;">break</span><span style="color: #000000;">;
        </span><span style="color: #0000ff;">unset</span>(<span style="color: #800080;">$this</span>->cur_ns[<span style="color: #800080;">$uri</span><span style="color: #000000;">]);
      </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;
      </span><span style="color: #0000ff;">case</span> self::START_TAG:
        <span style="color: #800080;">$line</span> = <span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span><span style="color: #000000;">);
 
        </span><span style="color: #800080;">$o</span> += 4<span style="color: #000000;">;
        </span><span style="color: #800080;">$attrs</span> = <span style="color: #0000ff;">array</span><span style="color: #000000;">();
        </span><span style="color: #800080;">$props</span> = <span style="color: #0000ff;">array</span><span style="color: #000000;">(
          </span>'line' => <span style="color: #800080;">$line</span>,
          'ns' => <span style="color: #800080;">$this</span>->getNameSpace(<span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span>)),
          'name' => <span style="color: #800080;">$this</span>->getString(<span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span>)),
          'flag' => <span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span>),
          'count' => <span style="color: #800080;">$this</span>->get16(<span style="color: #800080;">$o</span>),
          'id' => <span style="color: #800080;">$this</span>->get16(<span style="color: #800080;">$o</span>)-1,
          'class' => <span style="color: #800080;">$this</span>->get16(<span style="color: #800080;">$o</span>)-1,
          'style' => <span style="color: #800080;">$this</span>->get16(<span style="color: #800080;">$o</span>)-1,
          'attrs' => &<span style="color: #800080;">$attrs</span><span style="color: #000000;">
        );
        </span><span style="color: #800080;">$props</span>['ns_name'] = <span style="color: #800080;">$props</span>['ns'].<span style="color: #800080;">$props</span>['name'<span style="color: #000000;">];
        </span><span style="color: #0000ff;">for</span> (<span style="color: #800080;">$i</span>=0; <span style="color: #800080;">$i</span> < <span style="color: #800080;">$props</span>['count']; <span style="color: #800080;">$i</span>++<span style="color: #000000;">){
          </span><span style="color: #800080;">$a</span> = <span style="color: #0000ff;">array</span><span style="color: #000000;">(
            </span>'ns' => <span style="color: #800080;">$this</span>->getNameSpace(<span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span>)),
            'name' => <span style="color: #800080;">$this</span>->getString(<span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span>)),
            'val_str' => <span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span>),
            'val_type' => <span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span>),
            'val_data' => <span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span><span style="color: #000000;">)
          );
          </span><span style="color: #800080;">$a</span>['ns_name'] = <span style="color: #800080;">$a</span>['ns'].<span style="color: #800080;">$a</span>['name'<span style="color: #000000;">];
          </span><span style="color: #800080;">$a</span>['val_type'] >>= 24<span style="color: #000000;">;
          </span><span style="color: #800080;">$attrs</span>[] = <span style="color: #800080;">$a</span><span style="color: #000000;">;
        }
        </span><span style="color: #008000;">//</span><span style="color: #008000;"> 处理TAG字符串</span>
        <span style="color: #800080;">$tag</span> = "<{<span style="color: #800080;">$props</span>['ns_name']}"<span style="color: #000000;">;
        </span><span style="color: #0000ff;">foreach</span> (<span style="color: #800080;">$this</span>->cur_ns <span style="color: #0000ff;">as</span> <span style="color: #800080;">$uri</span> => <span style="color: #800080;">$prefix</span><span style="color: #000000;">){
          </span><span style="color: #800080;">$uri</span> = <span style="color: #800080;">$this</span>->getString(<span style="color: #800080;">$uri</span><span style="color: #000000;">);
          </span><span style="color: #800080;">$prefix</span> = <span style="color: #800080;">$this</span>->getString(<span style="color: #800080;">$prefix</span><span style="color: #000000;">);
          </span><span style="color: #800080;">$tag</span> .= " xmlns:{<span style="color: #800080;">$prefix</span>}=\"{<span style="color: #800080;">$uri</span>}\""<span style="color: #000000;">;
        }
        </span><span style="color: #0000ff;">foreach</span> (<span style="color: #800080;">$props</span>['attrs'] <span style="color: #0000ff;">as</span> <span style="color: #800080;">$a</span><span style="color: #000000;">){
          </span><span style="color: #800080;">$tag</span> .= " {<span style="color: #800080;">$a</span>['ns_name']}=\"".
              <span style="color: #800080;">$this</span>->getAttributeValue(<span style="color: #800080;">$a</span>).
              '"'<span style="color: #000000;">;
        }
        </span><span style="color: #800080;">$tag</span> .= '>'<span style="color: #000000;">;
        </span><span style="color: #800080;">$props</span>['tag'] = <span style="color: #800080;">$tag</span><span style="color: #000000;">;
 
        </span><span style="color: #0000ff;">unset</span>(<span style="color: #800080;">$this</span>-><span style="color: #000000;">cur_ns);
        </span><span style="color: #800080;">$this</span>->cur_ns = <span style="color: #0000ff;">array</span><span style="color: #000000;">();
        </span><span style="color: #800080;">$this</span>->ns[] = &<span style="color: #800080;">$this</span>-><span style="color: #000000;">cur_ns;
        </span><span style="color: #800080;">$left</span> = -1<span style="color: #000000;">;
      </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;
      </span><span style="color: #0000ff;">case</span> self::END_TAG:
        <span style="color: #800080;">$line</span> = <span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span><span style="color: #000000;">);
        </span><span style="color: #800080;">$o</span> += 4<span style="color: #000000;">;
        </span><span style="color: #800080;">$props</span> = <span style="color: #0000ff;">array</span><span style="color: #000000;">(
          </span>'line' => <span style="color: #800080;">$line</span>,
          'ns' => <span style="color: #800080;">$this</span>->getNameSpace(<span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span>)),
          'name' => <span style="color: #800080;">$this</span>->getString(<span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span><span style="color: #000000;">))
        );
        </span><span style="color: #800080;">$props</span>['ns_name'] = <span style="color: #800080;">$props</span>['ns'].<span style="color: #800080;">$props</span>['name'<span style="color: #000000;">];
        </span><span style="color: #800080;">$props</span>['tag'] = "</{<span style="color: #800080;">$props</span>['ns_name']}>"<span style="color: #000000;">;
        </span><span style="color: #0000ff;">if</span> (<span style="color: #008080;">count</span>(<span style="color: #800080;">$this</span>->ns) > 1<span style="color: #000000;">){
          </span><span style="color: #008080;">array_pop</span>(<span style="color: #800080;">$this</span>-><span style="color: #000000;">ns);
          </span><span style="color: #0000ff;">unset</span>(<span style="color: #800080;">$this</span>-><span style="color: #000000;">cur_ns);
          </span><span style="color: #800080;">$this</span>->cur_ns = <span style="color: #008080;">array_pop</span>(<span style="color: #800080;">$this</span>-><span style="color: #000000;">ns);
          </span><span style="color: #800080;">$this</span>->ns[] = &<span style="color: #800080;">$this</span>-><span style="color: #000000;">cur_ns;
        }
      </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;
      </span><span style="color: #0000ff;">case</span> self::TEXT:
        <span style="color: #800080;">$o</span> += 8<span style="color: #000000;">;
        </span><span style="color: #800080;">$props</span> = <span style="color: #0000ff;">array</span><span style="color: #000000;">(
          </span>'tag' => <span style="color: #800080;">$this</span>->getString(<span style="color: #800080;">$this</span>->get32(<span style="color: #800080;">$o</span><span style="color: #000000;">))
        );
        </span><span style="color: #800080;">$o</span> += 8<span style="color: #000000;">;
      </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;
      </span><span style="color: #0000ff;">default</span>:
        <span style="color: #0000ff;">throw</span> <span style="color: #0000ff;">new</span> <span style="color: #0000ff;">Exception</span>('Block Type Error', 3<span style="color: #000000;">);
      </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;
    }
 
    </span><span style="color: #800080;">$this</span>->skip(<span style="color: #800080;">$o</span><span style="color: #000000;">);
    </span><span style="color: #800080;">$child</span> = <span style="color: #0000ff;">array</span><span style="color: #000000;">();
    </span><span style="color: #0000ff;">while</span> (<span style="color: #800080;">$this</span>->length > <span style="color: #800080;">$left</span><span style="color: #000000;">){
      </span><span style="color: #800080;">$c</span> = <span style="color: #800080;">$this</span>-><span style="color: #000000;">parseBlock();
      </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$props</span> && <span style="color: #800080;">$c</span>) <span style="color: #800080;">$child</span>[] = <span style="color: #800080;">$c</span><span style="color: #000000;">;
      </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$left</span> == -1 && <span style="color: #800080;">$c</span>['type'] == self::<span style="color: #000000;">END_TAG){
        </span><span style="color: #800080;">$left</span> = <span style="color: #800080;">$this</span>-><span style="color: #000000;">length;
        </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;
      }
    }
    </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$this</span>->length != <span style="color: #800080;">$left</span>) <span style="color: #0000ff;">throw</span> <span style="color: #0000ff;">new</span> <span style="color: #0000ff;">Exception</span>('Block Overflow Error', 4<span style="color: #000000;">);
    </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$props</span><span style="color: #000000;">){
      </span><span style="color: #800080;">$props</span>['type'] = <span style="color: #800080;">$type</span><span style="color: #000000;">;
      </span><span style="color: #800080;">$props</span>['size'] = <span style="color: #800080;">$size</span><span style="color: #000000;">;
      </span><span style="color: #800080;">$props</span>['child'] = <span style="color: #800080;">$child</span><span style="color: #000000;">;
      </span><span style="color: #0000ff;">return</span> <span style="color: #800080;">$props</span><span style="color: #000000;">;
    }</span><span style="color: #0000ff;">else</span><span style="color: #000000;"> {
      </span><span style="color: #0000ff;">return</span> <span style="color: #0000ff;">false</span><span style="color: #000000;">;
    }
  }
 
  </span><span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span> getAttributeValue(<span style="color: #800080;">$a</span><span style="color: #000000;">){
    </span><span style="color: #800080;">$type</span> = &<span style="color: #800080;">$a</span>['val_type'<span style="color: #000000;">];
    </span><span style="color: #800080;">$data</span> = &<span style="color: #800080;">$a</span>['val_data'<span style="color: #000000;">];
    </span><span style="color: #0000ff;">switch</span> (<span style="color: #800080;">$type</span><span style="color: #000000;">){
      </span><span style="color: #0000ff;">case</span> self::TYPE_STRING:
        <span style="color: #0000ff;">return</span> <span style="color: #800080;">$this</span>->getString(<span style="color: #800080;">$a</span>['val_str'<span style="color: #000000;">]);
      </span><span style="color: #0000ff;">case</span> self::TYPE_ATTRIBUTE:
        <span style="color: #0000ff;">return</span> <span style="color: #008080;">sprintf</span>('?%s%08X', self::_getPackage(<span style="color: #800080;">$data</span>), <span style="color: #800080;">$data</span><span style="color: #000000;">);
      </span><span style="color: #0000ff;">case</span> self::TYPE_REFERENCE:
        <span style="color: #0000ff;">return</span> <span style="color: #008080;">sprintf</span>('@%s%08X', self::_getPackage(<span style="color: #800080;">$data</span>), <span style="color: #800080;">$data</span><span style="color: #000000;">);
      </span><span style="color: #0000ff;">case</span> self::TYPE_INT_HEX:
        <span style="color: #0000ff;">return</span> <span style="color: #008080;">sprintf</span>('0x%08X', <span style="color: #800080;">$data</span><span style="color: #000000;">);
      </span><span style="color: #0000ff;">case</span> self::TYPE_INT_BOOLEAN:
        <span style="color: #0000ff;">return</span> (<span style="color: #800080;">$data</span> != 0 ? 'true' : 'false'<span style="color: #000000;">);
      </span><span style="color: #0000ff;">case</span> self::TYPE_INT_COLOR_ARGB8:
      <span style="color: #0000ff;">case</span> self::TYPE_INT_COLOR_RGB8:
      <span style="color: #0000ff;">case</span> self::TYPE_INT_COLOR_ARGB4:
      <span style="color: #0000ff;">case</span> self::TYPE_INT_COLOR_RGB4:
        <span style="color: #0000ff;">return</span> <span style="color: #008080;">sprintf</span>('#%08X', <span style="color: #800080;">$data</span><span style="color: #000000;">);
      </span><span style="color: #0000ff;">case</span> self::TYPE_DIMENSION:
        <span style="color: #0000ff;">return</span> <span style="color: #800080;">$this</span>->_complexToFloat(<span style="color: #800080;">$data</span>).self::<span style="color: #800080;">$DIMENSION_UNITS</span>[<span style="color: #800080;">$data</span> & self::<span style="color: #000000;">UNIT_MASK];
      </span><span style="color: #0000ff;">case</span> self::TYPE_FRACTION:
        <span style="color: #0000ff;">return</span> <span style="color: #800080;">$this</span>->_complexToFloat(<span style="color: #800080;">$data</span>).self::<span style="color: #800080;">$FRACTION_UNITS</span>[<span style="color: #800080;">$data</span> & self::<span style="color: #000000;">UNIT_MASK];
      </span><span style="color: #0000ff;">case</span> self::TYPE_FLOAT:
        <span style="color: #0000ff;">return</span> <span style="color: #800080;">$this</span>->_int2float(<span style="color: #800080;">$data</span><span style="color: #000000;">);
    }
    </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$type</span> >=self::TYPE_INT_DEC && <span style="color: #800080;">$type</span> < self::<span style="color: #000000;">TYPE_INT_COLOR_ARGB8){
      </span><span style="color: #0000ff;">return</span> (<span style="color: #0000ff;">string</span>)<span style="color: #800080;">$data</span><span style="color: #000000;">;
    }
    </span><span style="color: #0000ff;">return</span> <span style="color: #008080;">sprintf</span>('<0x%X, type 0x%02X>', <span style="color: #800080;">$data</span>, <span style="color: #800080;">$type</span><span style="color: #000000;">);
  }
 
  </span><span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span> _complexToFloat(<span style="color: #800080;">$data</span><span style="color: #000000;">){
    </span><span style="color: #0000ff;">return</span> (<span style="color: #0000ff;">float</span>)(<span style="color: #800080;">$data</span> & 0xFFFFFF00) * self::<span style="color: #800080;">$RADIX_MULTS</span>[(<span style="color: #800080;">$data</span>>>4) & 3<span style="color: #000000;">];
  }
  </span><span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span> _int2float(<span style="color: #800080;">$v</span><span style="color: #000000;">) {
    </span><span style="color: #800080;">$x</span> = (<span style="color: #800080;">$v</span> & ((1 << 23) - 1)) + (1 << 23) * (<span style="color: #800080;">$v</span> >> 31 | 1<span style="color: #000000;">);
    </span><span style="color: #800080;">$exp</span> = (<span style="color: #800080;">$v</span> >> 23 & 0xFF) - 127<span style="color: #000000;">;
    </span><span style="color: #0000ff;">return</span> <span style="color: #800080;">$x</span> * <span style="color: #008080;">pow</span>(2, <span style="color: #800080;">$exp</span> - 23<span style="color: #000000;">);
  }
  </span><span style="color: #0000ff;">private</span> <span style="color: #0000ff;">static</span> <span style="color: #0000ff;">function</span> _getPackage(<span style="color: #800080;">$data</span><span style="color: #000000;">){
    </span><span style="color: #0000ff;">return</span> (<span style="color: #800080;">$data</span> >> 24 == 1) ? 'android:' : ''<span style="color: #000000;">;
  }
 
  </span><span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span> getStringTab(<span style="color: #800080;">$base</span>, <span style="color: #800080;">$list</span><span style="color: #000000;">){
    </span><span style="color: #800080;">$tab</span> = <span style="color: #0000ff;">array</span><span style="color: #000000;">();
    </span><span style="color: #0000ff;">foreach</span> (<span style="color: #800080;">$list</span> <span style="color: #0000ff;">as</span> <span style="color: #800080;">$off</span><span style="color: #000000;">){
      </span><span style="color: #800080;">$off</span> += <span style="color: #800080;">$base</span><span style="color: #000000;">;
      </span><span style="color: #800080;">$len</span> = <span style="color: #800080;">$this</span>->get16(<span style="color: #800080;">$off</span><span style="color: #000000;">);
      </span><span style="color: #800080;">$mask</span> = (<span style="color: #800080;">$len</span> >> 0x8) & 0xFF<span style="color: #000000;">;
      </span><span style="color: #800080;">$len</span> = <span style="color: #800080;">$len</span> & 0xFF<span style="color: #000000;">;
      </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$len</span> == <span style="color: #800080;">$mask</span><span style="color: #000000;">){
        </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$off</span> + <span style="color: #800080;">$len</span> > <span style="color: #800080;">$this</span>->length) <span style="color: #0000ff;">throw</span> <span style="color: #0000ff;">new</span> <span style="color: #0000ff;">Exception</span>('String Table Overflow', 11<span style="color: #000000;">);
        </span><span style="color: #800080;">$tab</span>[] = <span style="color: #008080;">substr</span>(<span style="color: #800080;">$this</span>->xml, <span style="color: #800080;">$off</span>, <span style="color: #800080;">$len</span><span style="color: #000000;">);
      }</span><span style="color: #0000ff;">else</span><span style="color: #000000;"> {
        </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$off</span> + <span style="color: #800080;">$len</span> * 2 > <span style="color: #800080;">$this</span>->length) <span style="color: #0000ff;">throw</span> <span style="color: #0000ff;">new</span> <span style="color: #0000ff;">Exception</span>('String Table Overflow', 11<span style="color: #000000;">);
        </span><span style="color: #800080;">$str</span> = <span style="color: #008080;">substr</span>(<span style="color: #800080;">$this</span>->xml, <span style="color: #800080;">$off</span>, <span style="color: #800080;">$len</span> * 2<span style="color: #000000;">);
        </span><span style="color: #800080;">$tab</span>[] = mb_convert_encoding(<span style="color: #800080;">$str</span>, 'UTF-8', 'UCS-2LE'<span style="color: #000000;">);
      }
    }
    </span><span style="color: #0000ff;">return</span> <span style="color: #800080;">$tab</span><span style="color: #000000;">;
  }
  </span><span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span> getString(<span style="color: #800080;">$id</span><span style="color: #000000;">){
    </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$id</span> > -1 && <span style="color: #800080;">$id</span> < <span style="color: #800080;">$this</span>-><span style="color: #000000;">stringCount){
      </span><span style="color: #0000ff;">return</span> <span style="color: #800080;">$this</span>->stringTab[<span style="color: #800080;">$id</span><span style="color: #000000;">];
    }</span><span style="color: #0000ff;">else</span><span style="color: #000000;"> {
      </span><span style="color: #0000ff;">return</span> ''<span style="color: #000000;">;
    }
  }
  </span><span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span> getNameSpace(<span style="color: #800080;">$uri</span><span style="color: #000000;">){
    </span><span style="color: #0000ff;">for</span> (<span style="color: #800080;">$i</span>=<span style="color: #008080;">count</span>(<span style="color: #800080;">$this</span>->ns); <span style="color: #800080;">$i</span> > 0<span style="color: #000000;">; ){
      </span><span style="color: #800080;">$ns</span> = <span style="color: #800080;">$this</span>->ns[--<span style="color: #800080;">$i</span><span style="color: #000000;">];
      </span><span style="color: #0000ff;">if</span> (<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$ns</span>[<span style="color: #800080;">$uri</span><span style="color: #000000;">])){
        </span><span style="color: #800080;">$ns</span> = <span style="color: #800080;">$this</span>->getString(<span style="color: #800080;">$ns</span>[<span style="color: #800080;">$uri</span><span style="color: #000000;">]);
        </span><span style="color: #0000ff;">if</span> (!<span style="color: #0000ff;">empty</span>(<span style="color: #800080;">$ns</span>)) <span style="color: #800080;">$ns</span> .= ':'<span style="color: #000000;">;
        </span><span style="color: #0000ff;">return</span> <span style="color: #800080;">$ns</span><span style="color: #000000;">;
      }
    }
    </span><span style="color: #0000ff;">return</span> ''<span style="color: #000000;">;
  }
  </span><span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span> get32(&<span style="color: #800080;">$off</span><span style="color: #000000;">){
    </span><span style="color: #800080;">$int</span> = <span style="color: #008080;">unpack</span>('V', <span style="color: #008080;">substr</span>(<span style="color: #800080;">$this</span>->xml, <span style="color: #800080;">$off</span>, 4<span style="color: #000000;">));
    </span><span style="color: #800080;">$off</span> += 4<span style="color: #000000;">;
    </span><span style="color: #0000ff;">return</span> <span style="color: #008080;">array_shift</span>(<span style="color: #800080;">$int</span><span style="color: #000000;">);
  }
  </span><span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span> get32array(&<span style="color: #800080;">$off</span>, <span style="color: #800080;">$size</span><span style="color: #000000;">){
    </span><span style="color: #0000ff;">if</span> (<span style="color: #800080;">$size</span> <= 0) <span style="color: #0000ff;">return</span> <span style="color: #0000ff;">NULL</span><span style="color: #000000;">;
    </span><span style="color: #800080;">$arr</span> = <span style="color: #008080;">unpack</span>('V*', <span style="color: #008080;">substr</span>(<span style="color: #800080;">$this</span>->xml, <span style="color: #800080;">$off</span>, 4 * <span style="color: #800080;">$size</span><span style="color: #000000;">));
    </span><span style="color: #0000ff;">if</span> (<span style="color: #008080;">count</span>(<span style="color: #800080;">$arr</span>) != <span style="color: #800080;">$size</span>) <span style="color: #0000ff;">throw</span> <span style="color: #0000ff;">new</span> <span style="color: #0000ff;">Exception</span>('Array Size Error', 10<span style="color: #000000;">);
    </span><span style="color: #800080;">$off</span> += 4 * <span style="color: #800080;">$size</span><span style="color: #000000;">;
    </span><span style="color: #0000ff;">return</span> <span style="color: #800080;">$arr</span><span style="color: #000000;">;
  }
  </span><span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span> get16(&<span style="color: #800080;">$off</span><span style="color: #000000;">){
    </span><span style="color: #800080;">$int</span> = <span style="color: #008080;">unpack</span>('v', <span style="color: #008080;">substr</span>(<span style="color: #800080;">$this</span>->xml, <span style="color: #800080;">$off</span>, 2<span style="color: #000000;">));
    </span><span style="color: #800080;">$off</span> += 2<span style="color: #000000;">;
    </span><span style="color: #0000ff;">return</span> <span style="color: #008080;">array_shift</span>(<span style="color: #800080;">$int</span><span style="color: #000000;">);
  }
  </span><span style="color: #0000ff;">private</span> <span style="color: #0000ff;">function</span> skip(<span style="color: #800080;">$size</span><span style="color: #000000;">){
    </span><span style="color: #800080;">$this</span>->xml = <span style="color: #008080;">substr</span>(<span style="color: #800080;">$this</span>->xml, <span style="color: #800080;">$size</span><span style="color: #000000;">);
    </span><span style="color: #800080;">$this</span>->length -= <span style="color: #800080;">$size</span><span style="color: #000000;">;
  }
}
</span>?>

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn