php changes the URL in the string to a hyperlink

$string = "Connect to http://www.codes51.com site";
//There needs to be a space or a carriage return after the connection.

$string = eregi_replace("http://([^ ,rn]*)","\0",$string);
$string = eregi_replace("ftp://([^ ,rn]*)","\0",$string);

PRint $string;

This is very useful.

The above introduces how PHP changes the URL into a hyperlink in the string, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.