url op een forum

<?

if(!preg_match("/(\$@{})+/",$text)) {
	if(preg_match("/http:\/\/(.*)([[:space:]*])/",$text)) {
	    $text = preg_replace("/http:\/\/([a-zA-Z0-9\._-]*[\/\.\?\&;_\\=\-a-zA-Z0-9]*)/si","<a href=\"http://\\1\" target=\"_blank\">http://\\1</a>",$text);
	}
	elseif(preg_match("/www([a-zA-Z0-9\/\.\?\&\;\_\\\=\-]*)/",$text)) {
	    $text = preg_replace("/www\.([\/\.\?\&;_\\=\-a-zA-Z0-9]*)([[:space:]]?)/si","<a href=\"http://www.\\1\" target=\"_blank\">http://www.\\1</a>",$text);
	}
}


?>

<?
 
if(!preg_match("/(\$@{})+/",$text)) {
	if(preg_match("/http:\/\/(.*)([[:space:]*])/",$text)) {
	    $text = preg_replace("/http:\/\/([a-zA-Z0-9\._-]*[\/\.\?\&;_\\=\-a-zA-Z0-9]*)/si","<a href=\"http://\\1\" target=\"_blank\">http://\\1</a>",$text);
	}
	elseif(preg_match("/www([a-zA-Z0-9\/\.\?\&\;\_\\\=\-]*)/",$text)) {
	    $text = preg_replace("/www\.([\/\.\?\&;_\\=\-a-zA-Z0-9]*)([[:space:]]?)/si","<a href=\"http://www.\\1\" target=\"_blank\">http://www.\\1</a>",$text);
	}
}
 
 
?>

<?
function url_my_string($text)
{
	$text = preg_replace('/([\w]+?:\/\/[^ \"\n\r\t<]*)/i', '<a href="\1" target="_blank">\1</a>', $text);
	$text = preg_replace('/((www|ftp)\.[^ \"\t\n\r<]*)/i', '<a href="http://\1" target="_blank">\1</a>', $text);
	$text = preg_replace('/([a-z0-9&\-_.]+?)@([\w\-]+\.([\w\-\.]+\.)*[\w]+)/i', '<a href="mailto:\1@\2">\1@\2</a>', $text);

	return $text;
}
?>

<?
function url_my_string($text)
{
	$text = preg_replace('/([\w]+?:\/\/[^ \"\n\r\t<]*)/i', '<a href="\1" target="_blank">\1</a>', $text);
	$text = preg_replace('/((www|ftp)\.[^ \"\t\n\r<]*)/i', '<a href="http://\1" target="_blank">\1</a>', $text);
	$text = preg_replace('/([a-z0-9&\-_.]+?)@([\w\-]+\.([\w\-\.]+\.)*[\w]+)/i', '<a href="mailto:\1@\2">\1@\2</a>', $text);
 
	return $text;
}
?>