adding target attribute based on domain

[scvinodkumar]

How to add the 'target="_blank"' attribute in the <a> if the domain is test.com else no target

[thebadbad]

<?php
$source = '<a href="http://www.google.com/">test</a> and another <a href="http://test.com/dir/">test</a>';
function func_callback($matches) {
$return = '<a';
if (parse_url($matches[2], PHP_URL_HOST) == 'test.com') {
	$return .= ' target="_blank"';
}
return $return . $matches[1];
}
$source = preg_replace_callback('~<a\b([^>]*href=[\'"]([^\'"]*)[\'"][^>]*>)~i', 'func_callback', $source);
echo $source;
?>

 

Output:

<a href="http://www.google.com/">test</a> and another <a target="_blank" href="http://test.com/dir/">test</a>

[scvinodkumar]

thanks for your help, its working

[nrg_alpha]

Alternatively (based on thebadbad's solution):

 

$source = '<a href="http://www.google.com/">test</a> and another <a href="http://test.com/dir/">test</a>';
function func_callback($matches){
    if (parse_url($matches[1], PHP_URL_HOST) == 'test.com') {
$matches[0] = 'target="_blank" ' . $matches[0];
    }
    return $matches[0];
}

$source = preg_replace_callback('#href=[\'"]([^\'"]*)[\'"]#i', 'func_callback', $source);
echo htmlentities($source);

 

This way, we simplify the regex search, only resort to one capture (as opposed to two), and eliminate the $return variable.

[thebadbad]

This way, we simplify the regex search, only resort to one capture (as opposed to two), and eliminate the $return variable.

 

Yea, that's better. Think I kept in mind that the href attribute also appears within tags like base and link, but if the OP only runs the code on some body text, your simplified script will do just fine.

[nrg_alpha]

Yeah, I thought about tags like that (link, base, area, etc..) afterwards.. not sure if there would be adverse effects on those (never tested that to be honest). For anchor tags specifically, yours would do just nicely