Transform Text URLs to hyperlinks in PHP

Hello,

I have some text which contains some links, and I have to transform it into hyperlinks using PHP.

I have searched on the net and wasn't able to find anything meaningful. Is there any library or class which does this?

 

This will help.

Actually I just googled using your keyword : "php url to hyperlink"

 

I tried this but for some reason it wasn't parsing the URLs correctly, it was just linking http:// only I believe.

 

$text = ; // place here whatever you want to replace
preg_replace('/'.$text.'/', '<a href="'.$text.'">'.$text.'</a>', $string);

Code (markup):

if this gives some trouble then simply place a backslash before the $text in preg function

 

Thanks, but this does not work, as the text I don't need to hyperlink the whole text, just the part of the text which are URLs.

 

So I found a very nice function in wordpress.

<?php

function _make_url_clickable_cb($matches) {
	$ret = '';
	$url = $matches[2];

	if ( empty($url) )
		return $matches[0];
	// removed trailing [.,;:] from URL
	if ( in_array(substr($url, -1), array('.', ',', ';', ':')) === true ) {
		$ret = substr($url, -1);
		$url = substr($url, 0, strlen($url)-1);
	}
	return $matches[1] . "<a href=\"$url\" rel=\"nofollow\">$url</a>" . $ret;
}

function _make_web_ftp_clickable_cb($matches) {
	$ret = '';
	$dest = $matches[2];
	$dest = 'http://' . $dest;

	if ( empty($dest) )
		return $matches[0];
	// removed trailing [,;:] from URL
	if ( in_array(substr($dest, -1), array('.', ',', ';', ':')) === true ) {
		$ret = substr($dest, -1);
		$dest = substr($dest, 0, strlen($dest)-1);
	}
	return $matches[1] . "<a href=\"$dest\" rel=\"nofollow\">$dest</a>" . $ret;
}

function _make_email_clickable_cb($matches) {
	$email = $matches[2] . '@' . $matches[3];
	return $matches[1] . "<a href=\"mailto:$email\">$email</a>";
}

function make_clickable($ret) {
	$ret = ' ' . $ret;
	// in testing, using arrays here was found to be faster
	$ret = preg_replace_callback('#([\s>])([\w]+?://[\w\\x80-\\xff\#$%&~/.\-;:=,?@\[\]+]*)#is', '_make_url_clickable_cb', $ret);
	$ret = preg_replace_callback('#([\s>])((www|ftp)\.[\w\\x80-\\xff\#$%&~/.\-;:=,?@\[\]+]*)#is', '_make_web_ftp_clickable_cb', $ret);
	$ret = preg_replace_callback('#([\s>])([.0-9a-z_+-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,})#i', '_make_email_clickable_cb', $ret);

	// this one is not in an array because we need it to run last, for cleanup of accidental links within links
	$ret = preg_replace("#(<a( [^>]+?>|>))<a [^>]+?>([^>]+?)</a></a>#i", "$1$3</a>", $ret);
	$ret = trim($ret);
	return $ret;
}

$str = 'some string here and http://www.haha.com/ and www.youtube.com';

echo make_clickable($str);

?>

PHP:

It replaces http://www.haha.com/ , www.youtube.com and email address too.

 

Works like a charm! Thanks

Demo: http://www.courtixhosting.com/ - Check the twitter feed on the right, the links were not clickable before.