<pre class="brush:php;">    function makeClickableLinks($text) {
 $text = eregi_replace('(((f|ht){1}tp://)[-a-zA-Z0-9@:%_+.~#?&amp;//=]+)',
 '＜a href="\\1"＞\1＜/a＞', $text);
 $text = eregi_replace('([[:space:]()[{}])(www.[-a-zA-Z0-9@:%_+.~#?&amp;//=]+)',
 '\1＜a href="http://\\2"＞\2＜/a＞', $text);
 $text = eregi_replace('([_.0-9a-z-]+@([0-9a-z][0-9a-z-]+.)+[a-z]{2,3})',
 '＜a href="mailto:\\1"＞\1＜/a＞', $text);  

return $text;
}
```