I've got this function:
PHP Code:
/* clickable($url) changes a block of text to use urls */
function clickable($url){
$in = array('`((?:https?|ftp)://\S+[[:alnum:]]/?)`si','`((?<!//)(www\.\S+[[:alnum:]]/?))`si');
$out = array('<a href="$1" rel="nofollow" target="_blank">$1</a>', '<a href="http://$1" rel="nofollow" target="_blank">$1</a>');
return preg_replace($in,$out,$url);
}
And, I just tried it out with a series of other functions, and it went haywire. I don't understand regex yet, so help is appreciated ^.^.
Here's the context I'm using it in:
PHP Code:
/* escape_data($string) This function cleans data for databases. */
function escape_data ($data) {
db_connect();
if (ini_get('magic_quotes_gpc')) {
$data = stripslashes($data);
}
$data = mysql_escape_string (trim($data));
db_close();
return $data;
}
/* format_string($str) fixes a string for input and display */
function format_string($str) {
$string = escape_data($str);
$string = str_replace("\n", "<br />", $string);
$string = clickable($string);
return $string;
}
echo format_string($input);
The problem I was having was rather odd. The hyperlink linked multiple url strings with 1 anchor. But it did that twice. The format_string function also failed to replace '\n' with '<br />' in the instance when I used clickable(). It's never done that before, though =/.
Before you post, read our: 
