勉強中ですシステム: linux php4 oracle8i
<ol class="dp-xml"> <li class="alt"><span><span class="tag"><strong><font color="#006699"><?</FONT></STRONG></SPAN><SPAN> </SPAN></SPAN><LI class=""><SPAN>//--标题,名字等字段入库处理(去首尾空格) </SPAN><LI class=alt><SPAN>function trans_string_trim($str) { </SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>str</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>trim</FONT></SPAN><SPAN>($str); </SPAN></SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>str</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>eregi_replace</FONT></SPAN><SPAN>("'","''",$str); </SPAN></SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>str</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>stripslashes</FONT></SPAN><SPAN>($str); </SPAN></SPAN><LI class=alt><SPAN>return $str; </SPAN><LI class=""><SPAN>} </SPAN><LI class=alt><SPAN> </SPAN><LI class=""><SPAN>//--文章入库处理,即textarea字段; </SPAN><LI class=alt><SPAN>function trans_string($str) { </SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>str</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>eregi_replace</FONT></SPAN><SPAN>("'","''",$str); </SPAN></SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>str</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>stripslashes</FONT></SPAN><SPAN>($str); </SPAN></SPAN><LI class=""><SPAN>return $str; </SPAN><LI class=alt><SPAN>} </SPAN><LI class=""><SPAN> </SPAN><LI class=alt><SPAN>//--从库中显示在表单中;在text中以trans转换,在textarea中,无需转换,直接显示 </SPAN><LI class=""><SPAN> </SPAN><LI class=alt><SPAN>//--显示在WEB页面,过滤HTML代码;包括链接地址 </SPAN><LI class=""><SPAN>function trans($string) { </SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>string</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>htmlspecialchars</FONT></SPAN><SPAN>($string); </SPAN></SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>string</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>ereg_replace</FONT></SPAN><SPAN>(chr(10),"</SPAN><STRONG><FONT color=#006699><SPAN class=tag><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></font></strong></span><span>",$string); </span></span></li> <li class="alt"> <span>$</span><span class="attribute"><font color="#ff0000">string</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">ereg_replace</font></span><span>(chr(32)," ",$string); </span> </li> <li class=""><span>return $string; </span></li> <li class="alt"><span>} </span></li> <li class=""><span> </span></li> <li class="alt"><span>//--显示在WEB页面,不过滤HTML代码; </span></li> <li class=""><span>function trans_web($string) { </span></li> <li class="alt"> <span>$</span><span class="attribute"><font color="#ff0000">string</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">ereg_replace</font></span><span>(chr(10),"</span><strong><font color="#006699"><span class="tag"><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></span></font></strong><span>",$string); </span> </li> <li class=""> <span>$</span><span class="attribute"><font color="#ff0000">string</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">ereg_replace</font></span><span>(chr(32)," ",$string); </span> </li> <li class="alt"><span>return $string; </span></li> <li class=""><span>} </span></li> <li class="alt"><span> </span></li> <li class=""><span>//--显示在WEB页面,过滤HTML代码及头尾空格,主要用于显示用户昵称 </span></li> <li class="alt"><span>function trans_trim($string) { </span></li> <li class=""> <span>$</span><span class="attribute"><font color="#ff0000">string</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">trim</font></span><span>($string); </span> </li> <li class="alt"> <span>$</span><span class="attribute"><font color="#ff0000">string</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">htmlspecialchars</font></span><span>($string); </span> </li> <li class=""> <span>$</span><span class="attribute"><font color="#ff0000">string</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">ereg_replace</font></span><span>(chr(10),"</span><strong><font color="#006699"><span class="tag"><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></span></font></strong><span>",$string); </span> </li> <li class="alt"> <span>$</span><span class="attribute"><font color="#ff0000">string</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">ereg_replace</font></span><span>(chr(32)," ",$string); </span> </li> <li class=""><span>return $string; </span></li> <li class="alt"><span>} </span></li> <li class=""><span> </span></li> <li class="alt"><span>//--显示在span中; </span></li> <li class=""><span>function trans_span($string) { </span></li> <li class="alt"> <span>$</span><span class="attribute"><font color="#ff0000">string</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">ereg_replace</font></span><span>(chr(10),"n",$string); </span> </li> <li class=""> <span>$</span><span class="attribute"><font color="#ff0000">string</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">ereg_replace</font></span><span>(chr(32)," ",$string); </span> </li> <li class="alt"> <span>$</span><span class="attribute"><font color="#ff0000">string</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">ereg_replace</font></span><span>('"',""",$string); </span> </li> <li class=""><span>return $string; </span></li> <li class="alt"><span>} </span></li> <li class=""><span> </span></li> <li class="alt"><span>//--在WEB上显示cookie,过滤html </span></li> <li class=""><span>function trans_cookie($str) { </span></li> <li class="alt"> <span>$</span><span class="attribute"><font color="#ff0000">str</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">trans</font></span><span>($str); </span> </li> <li class=""> <span>$</span><span class="attribute"><font color="#ff0000">str</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">stripslashes</font></span><span>($str); </span> </li> <li class="alt"> <span>$</span><span class="attribute"><font color="#ff0000">str</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">eregi_replace</font></span><span>("''","'",$str); </span> </li> <li class=""><span>return $str; </span></li> <li class="alt"><span>} </span></li> <li class=""> <span></span><span class="tag"><strong><font color="#006699">?></font></strong></span><span> </span> </li> </ol>
最後に、PHP のエスケープ文字の使用法についてもう 1 つ追加したいと思います。記事はspan A段落に表示されます。substrを使用して固定長文字列を取得する場合は、spanパラメータの後に必ず余分なスペースを追加してください。そうしないと、漢字の半分が切り取られたときにHTMLコードが混乱してしまいます。
上記は、コード変換の問題を解決するために PHP エスケープ文字について提供するソリューションです。