$str='<p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; line-height: 200%;"><img border="0" src="http://blog.163.com/litianyichuanqi@126/blog/upfiles/2009/07/1246430143_4.jpg" alt=""/></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; line-height: 200%;"><img border="0" src="http://blog.163.com/litianyichuanqi@126/blog/upfiles/2009/07/1246430143_3.jpg" alt=""/></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; line-height: 200%;"><img border="0" src="http://blog.163.com/litianyichuanqi@126/blog/upfiles/2009/07/1246430143_1.jpg" alt=""/></p>'; $pattern="/<[img|IMG].*?src=[\'|\"](.*?(?:[\.gif|\.jpg]))[\'|\"].*?[\/]?>/"; preg_match_all($pattern,$str,$match); print_r($match);
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