关于PHP递归数组代码分析

我们大家都知道PHP是一种HTML内嵌式的语言，PHP与微软的ASP颇有几分相似，都是一种在服务器端执行的嵌入HTML文档的脚本语言，语言的风格有类似于C语言，现在被很多的网站编程人员广泛的运用。文章这里详细的介绍一下PHP递归数组。PHP程序需要将接收到的数据同时写到“线上运行的正式数据库”和“进行开发调试的测试数据库”。

而测试数据库可能经常会面临对表结构、字段、配置信息做调整等问题，很不稳定，发生错误的概率很高，如果用a.php程序同时写“正式数据库”和 “测试数据库”，势必影响到线上运行的正式服务。于是，我想到用PHP curl扩展库将生成的$data数组post传递一份给php程序，然后php程序继续往下执行写“正式数据库”的代码。php程序将$data数组传递给php程序就完事了，至于php如何处理，就不关php的事了，php程序即使写“测试数据库”失败，也不会对 php程序造成影响。

PHP递归数组源代码：

<ol class="dp-xml">
<li class="alt"><span><strong><font color="#006699"><span class="tag"></span><span class="tag-name">php</span></font></strong><span> </span></span></li>
<li class=""><span>$data["username"]="张宴";  </span></li>
<li class="alt"><span>$data["password"]="不知道";  </span></li>
<li class=""><span>$data["ip"]="192.168.0.18";  </span></li>
<li class="alt"><span>//reGISter_shutdown_function("post_data", $data);  </span></li>
<li class=""><span>//function post_data($data)  </span></li>
<li class="alt"><span>//{  </span></li>
<li class="">
<span>$</span><span class="attribute"><font color="#ff0000">curl</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">new</font></span><span> Curl_Class();  </span>
</li>
<li class="alt">
<span>$</span><span class="attribute"><font color="#ff0000">post</font></span><span> = @$curl-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>post("http://127.0.0.1/b.php", $data);//这里是b.php的访问地址，请自行修改  </span>
</li>
<li class=""><span>//}  </span></li>
<li class="alt"><span>//curl类  </span></li>
<li class=""><span>class Curl_Class  </span></li>
<li class="alt"><span>{  </span></li>
<li class=""><span>function Curl_Class()  </span></li>
<li class="alt"><span>{  </span></li>
<li class=""><span>return true;  </span></li>
<li class="alt"><span>}  </span></li>
<li class="">
<span>function execute($method, $url, $</span><span class="attribute"><font color="#ff0000">fields</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">''</font></span><span>, $</span><span class="attribute"><font color="#ff0000">userAgent</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">''</font></span><span>, $</span><span class="attribute"><font color="#ff0000">httpHeaders</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">''</font></span><span>, $</span><span class="attribute"><font color="#ff0000">username</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">''</font></span><span>, $</span><span class="attribute"><font color="#ff0000">password</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">''</font></span><span>)  </span>
</li>
<li class="alt"><span>{  </span></li>
<li class="">
<span>$</span><span class="attribute"><font color="#ff0000">ch</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">Curl_Class</font></span><span>::create();  </span>
</li>
<li class="alt">
<span>if (</span><span class="attribute"><font color="#ff0000">false</font></span><span> === $ch)  </span>
</li>
<li class=""><span>{  </span></li>
<li class="alt"><span>return false;  </span></li>
<li class=""><span>}  </span></li>
<li class="alt"><span>if (is_string($url) && strlen($url))  </span></li>
<li class=""><span>{  </span></li>
<li class="alt">
<span>$</span><span class="attribute"><font color="#ff0000">ret</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">curl_setopt</font></span><span>($ch, CURLOPT_URL, $url);  </span>
</li>
<li class=""><span>}  </span></li>
<li class="alt"><span>else  </span></li>
<li class=""><span>{  </span></li>
<li class="alt"><span>return false;  </span></li>
<li class=""><span>}  </span></li>
<li class="alt"><span>//是否显示头部信息  </span></li>
<li class=""><span>curl_setopt($ch, CURLOPT_HEADER, false);  </span></li>
<li class="alt"><span>//  </span></li>
<li class=""><span>curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);  </span></li>
<li class="alt"><span>if ($username != '')  </span></li>
<li class=""><span>{  </span></li>
<li class="alt"><span>curl_setopt($ch, CURLOPT_USERPWD, $username . ':' . $password);  </span></li>
<li class=""><span>}  </span></li>
<li class="alt">
<span>$</span><span class="attribute"><font color="#ff0000">method</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">strtolower</font></span><span>($method);  </span>
</li>
<li class=""><span>if ('post' == $method)  </span></li>
<li class="alt"><span>{  </span></li>
<li class=""><span>curl_setopt($ch, CURLOPT_POST, true);  </span></li>
<li class="alt"><span>if (is_array($fields))  </span></li>
<li class=""><span>{  </span></li>
<li class="alt">
<span>$</span><span class="attribute"><font color="#ff0000">sets</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">array</font></span><span>();  </span>
</li>
<li class="">
<span>foreach ($fields AS $</span><span class="attribute"><font color="#ff0000">key</font></span><span> =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> $val)  </span>
</li>
<li class="alt"><span>{  </span></li>
<li class=""><span>$sets[] = $key . '=' . urlencode($val);  </span></li>
<li class="alt"><span>}  </span></li>
<li class="">
<span>$</span><span class="attribute"><font color="#ff0000">fields</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">implode</font></span><span>('&',$sets);  </span>
</li>
<li class="alt"><span>}  </span></li>
<li class=""><span>curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);  </span></li>
<li class="alt"><span>}  </span></li>
<li class=""><span>else if ('put' == $method)  </span></li>
<li class="alt"><span>{  </span></li>
<li class=""><span>curl_setopt($ch, CURLOPT_PUT, true);  </span></li>
<li class="alt"><span>}  </span></li>
<li class=""><span>//curl_setopt($ch, CURLOPT_PROGRESS, true);  </span></li>
<li class="alt"><span>//curl_setopt($ch, CURLOPT_VERBOSE, true);  </span></li>
<li class=""><span>//curl_setopt($ch, CURLOPT_MUTE, false);  </span></li>
<li class="alt"><span>curl_setopt($ch, CURLOPT_TIMEOUT, 3);//设置curl超时秒数，例如将信息POST出去3秒钟后自动结束运行。  </span></li>
<li class=""><span>if (strlen($userAgent))  </span></li>
<li class="alt"><span>{  </span></li>
<li class=""><span>curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);  </span></li>
<li class="alt"><span>}  </span></li>
<li class=""><span>if (is_array($httpHeaders))  </span></li>
<li class="alt"><span>{  </span></li>
<li class=""><span>curl_setopt($ch, CURLOPT_HTTPHEADER, $httpHeaders);  </span></li>
<li class="alt"><span>}  </span></li>
<li class="">
<span>$</span><span class="attribute"><font color="#ff0000">ret</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">curl_exec</font></span><span>($ch);  </span>
</li>
<li class="alt"><span>if (curl_errno($ch))  </span></li>
<li class=""><span>{  </span></li>
<li class="alt"><span>curl_close($ch);  </span></li>
<li class=""><span>return array(curl_error($ch), curl_errno($ch));  </span></li>
<li class="alt"><span>}  </span></li>
<li class=""><span>else  </span></li>
<li class="alt"><span>{  </span></li>
<li class=""><span>curl_close($ch);  </span></li>
<li class="alt"><span>if (!is_string($ret) || !strlen($ret))  </span></li>
<li class=""><span>{  </span></li>
<li class="alt"><span>return false;  </span></li>
<li class=""><span>}  </span></li>
<li class="alt"><span>return $ret;  </span></li>
<li class=""><span>}  </span></li>
<li class="alt"><span>}  </span></li>
<li class="">
<span>function post($url, $fields, $</span><span class="attribute"><font color="#ff0000">userAgent</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">''</font></span><span>, $</span><span class="attribute"><font color="#ff0000">httpHeaders</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">''</font></span><span>, $</span><span class="attribute"><font color="#ff0000">username</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">''</font></span><span>, $</span><span class="attribute"><font color="#ff0000">password</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">''</font></span><span>)  </span>
</li>
<li class="alt"><span>{  </span></li>
<li class="">
<span>$</span><span class="attribute"><font color="#ff0000">ret</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">Curl_Class</font></span><span>::execute('POST', $url, $fields, $userAgent, $httpHeaders, $username, $password);  </span>
</li>
<li class="alt">
<span>if (</span><span class="attribute"><font color="#ff0000">false</font></span><span> === $ret)  </span>
</li>
<li class=""><span>{  </span></li>
<li class="alt"><span>return false;  </span></li>
<li class=""><span>}  </span></li>
<li class="alt"><span>if (is_array($ret))  </span></li>
<li class=""><span>{  </span></li>
<li class="alt"><span>return false;  </span></li>
<li class=""><span>}  </span></li>
<li class="alt"><span>return $ret;  </span></li>
<li class=""><span>}  </span></li>
<li class="alt">
<span>function get($url, $</span><span class="attribute"><font color="#ff0000">userAgent</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">''</font></span><span>, $</span><span class="attribute"><font color="#ff0000">httpHeaders</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">''</font></span><span>, $</span><span class="attribute"><font color="#ff0000">username</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">''</font></span><span>, $</span><span class="attribute"><font color="#ff0000">password</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">''</font></span><span>)  </span>
</li>
<li class=""><span>{  </span></li>
<li class="alt">
<span>$</span><span class="attribute"><font color="#ff0000">ret</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">Curl_Class</font></span><span>::execute('GET', $url, '', $userAgent, $httpHeaders, $username, $password);  </span>
</li>
<li class="">
<span>if (</span><span class="attribute"><font color="#ff0000">false</font></span><span> === $ret)  </span>
</li>
<li class="alt"><span>{  </span></li>
<li class=""><span>return false;  </span></li>
<li class="alt"><span>}  </span></li>
<li class=""><span>if (is_array($ret))  </span></li>
<li class="alt"><span>{  </span></li>
<li class=""><span>return false;  </span></li>
<li class="alt"><span>}  </span></li>
<li class=""><span>return $ret;  </span></li>
<li class="alt"><span>}  </span></li>
<li class=""><span>function create()  </span></li>
<li class="alt"><span>{  </span></li>
<li class="">
<span>$</span><span class="attribute"><font color="#ff0000">ch</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">null</font></span><span>;  </span>
</li>
<li class="alt"><span>if (!function_exists('curl_init'))  </span></li>
<li class=""><span>{  </span></li>
<li class="alt"><span>return false;  </span></li>
<li class=""><span>}  </span></li>
<li class="alt">
<span>$</span><span class="attribute"><font color="#ff0000">ch</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">curl_init</font></span><span>();  </span>
</li>
<li class=""><span>if (!is_resource($ch))  </span></li>
<li class="alt"><span>{  </span></li>
<li class=""><span>return false;  </span></li>
<li class="alt"><span>}  </span></li>
<li class=""><span>return $ch;  </span></li>
<li class="alt"><span>}  </span></li>
<li class=""><span>}  </span></li>
<li class="alt">
<span></span><span class="tag"><strong><font color="#006699">?></font></strong></span><span> </span>
</li>
</ol>

PHP递归数组代码：

<ol class="dp-xml">
<li class="alt"><span><strong><font color="#006699"><span class="tag"></span><span class="tag-name">php</span></font></strong><span>    </span></span></li>
<li class=""><span>ignore_user_abort();//连线中断后(例如关闭浏览器)仍然继续执行以下的脚本直到处理完毕。  </span></li>
<li class="alt"><span>set_time_limit(0);  </span></li>
<li class="">
<span>$</span><span class="attribute"><font color="#ff0000">get_data</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">file_get_contents</font></span><span>("php://input");  </span>
</li>
<li class="alt">
<span>$</span><span class="attribute-value"><font color="#0000ff">explode</font></span><span class="attribute"><font color="#ff0000">explodedata</font></span><span> = explode("&", $get_data);  </span>
</li>
<li class="">
<span>foreach ($explodedata as $</span><span class="attribute"><font color="#ff0000">key</font></span><span> =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> $value)//还原数组  </span>
</li>
<li class="alt"><span>{  </span></li>
<li class=""><span>list($realkey, $realvalue) = explode("=", $value);  </span></li>
<li class="alt"><span>$data[urldecode($realkey)] = urldecode($realvalue);  </span></li>
<li class=""><span>}  </span></li>
<li class="alt"><span>//现在$data数组已经和a.php中的一样了，接下来，就可以根据自己的需要对$data数组进行操作了。  </span></li>
<li class=""><span>//......  </span></li>
<li class="alt">
<span></span><span class="tag"><strong><font color="#006699">?></font></strong></span><span> </span>
</li>
</ol>