详解PHP截取中文字符串的具体代码实现

详解PHP截取中文字符串的具体代码实现_PHP教程

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发布： 2016-07-15 13:30:08

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任何一种语言都有专门针对中文处理的函数，往往这些处理方法都是比较难掌握的一部分。今天我们就向大家具体讲一下有关截取gb2312中文字符串

<ol class="dp-xml"><li class="alt"><span><span class="tag"><</span><span> ?php      </span></span></li><li><span>//截取中文字符串     </span></li><li class="alt"><span>function mysubstr($str, $start, $len) {     </span></li><li><span>    $</span><span class="attribute">tmpstr</span><span> = </span><span class="attribute-value">""</span><span>;     </span></li><li class="alt"><span>    $</span><span class="attribute">strlen</span><span> = $start + $len;     </span></li><li><span>    for($</span><span class="attribute">i</span><span> = </span><span class="attribute-value">0</span><span>; $i </span><span class="tag"><</span><span> $strlen; $i++) {     </span></li><li class="alt"><span>        if(ord(substr($str, $i, 1)) </span><span class="tag">></span><span> 0xa0) {     </span></li><li><span>            $tmpstr </span><span class="attribute">.</span><span>= </span><span class="attribute-value">substr</span><span>($str, $i, 2);     </span></li><li class="alt"><span>            $i++;     </span></li><li><span>        } else    </span></li><li class="alt"><span>            $tmpstr </span><span class="attribute">.</span><span>= </span><span class="attribute-value">substr</span><span>($str, $i, 1);     </span></li><li><span>    }     </span></li><li class="alt"><span>    return $tmpstr;     </span></li><li><span>}     </span></li><li class="alt"><span class="tag">?></span><span>   </span></li></ol>

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以上代码示例就是PHP截取中文字符串的相关实现方式。