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ãã$html="<p>fdasf</p>";
ããecho $string = str_replace(array("<p>","","</p>"),"",$html);
ããbr<http://bbs.houdunwang.com/>
è¥æ¯<p> å
容</p>æ¿æ¢æ<p>å
容</p>
<p> content</p>æ¿æ¢æ<p>contend</p>
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ãã$html=preg_replace('/[\n\r\t]/','',$html);//å»ç©ºæ ¼
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ãã<p> å 容</p>
ããæ¿æ¢æ<p>å 容</p>
ãã<p> content</p>
ããæ¿æ¢æ<p>contend</p>
ãã<?php
ãã$html="<p>
ããå 容</p>æ¿æ¢æ<p>å 容</p>
ãã<p>content</p>æ¿æ¢æ<p>contend</p>";æ¹æ³å¦ä¸
ãã$html=trim($html);
ãã$html=str_replace(PHP_EOL,"",$html);
ãã$html=str_replace(" ","",$html);
ãã$html=preg_replace('/\s+/','',$html);
ãã$html=preg_replace('/[\n\r\t]/','',$html);
ããecho "{$html}";
ãã?>