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> ?php </span></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> $strlen; $i++) { </span></span>
</li>
<li class="alt">
<span> if(ord(substr($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>以上代码示例就是PHP截取中文字符串的相关实现方式。
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