$string = &quot;连接http://www.chinae.org 站点&quot;;<br>
//连接后需要有个空格或回车。<br>
<br>
$string =&nbsp;&nbsp;eregi_replace(&quot;http://([^ , ]*)&quot;,&quot;&lt;a href=\0 target=_blank&gt;\0&lt;/a&gt;&quot;,$string);<br>
$string =&nbsp;&nbsp;eregi_replace(&quot;ftp://([^ , ]*)&quot;,&quot;&lt;a href=\0 target=_blank&gt;\0&lt;/a&gt;&quot;,$string);<br>
<br>
print $string;