<span /*</span><span *
* 取出html标签
*
* @access public
* @param string str
* @return string
*
</span><span */</span>
<span function</span> deletehtml(<span $str</span><span ) {
</span><span $str</span> = <span trim</span>(<span $str</span>); <span //</span><span 清除字符串两边的空格</span>
<span $str</span> = <span strip_tags</span>(<span $str</span>,"<p>"); <span //</span><span 利用php自带的函数清除html格式。保留P标签</span>
<span $str</span> = <span preg_replace</span>("/\t/","",<span $str</span>); <span //</span><span 使用正则表达式匹配需要替换的内容，如：空格，换行，并将替换为空。</span>
<span $str</span> = <span preg_replace</span>("/\r\n/","",<span $str</span><span );
</span><span $str</span> = <span preg_replace</span>("/\r/","",<span $str</span><span );
</span><span $str</span> = <span preg_replace</span>("/\n/","",<span $str</span><span );
</span><span $str</span> = <span preg_replace</span>("/ /","",<span $str</span><span );
</span><span $str</span> = <span preg_replace</span>("/ /","",<span $str</span>); <span //</span><span 匹配html中的空格</span>
<span return</span> <span trim</span>(<span $str</span>); <span //</span><span 返回字符串</span>
}
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