<p> <code><html><br /><head><title>正则表达式</title></head><br /><body><br /><a href="./">返回列表</a><br><br /><form action="<?echo $PHP_SELF;?>" method="post"><br />URL：<input type="text" name="url" value="<?echo $url?>"><input type="submit" value="获取所有裢接"><br /></form><br /><?<br />if(isset($url)){<br /> echo "$url 有下列裢接：<br>";<br /> $fcontents = file($url);<br /> while(list(,$line)=each($fcontents)){<br /> while(eregi('(href[[:space:]]*=[[:space:]]*"?[[:alnum:]:@/._-]+"?)(.*)',$line,$regs)){<br /> $regs[1] = eregi_replace('(href[[:space:]]*=[[:space:]]*"?)([[:alnum:]:@/._-]+)("?)',"\\2",$regs[1]);<br /> echo " $regs[1]<br>";<br /> $line = $regs[2];<br /> }<br /> }<br />}<br />?><br /></body><br /></html></code></p>