Question

I have the following variable:

$text = 'This is a sentence [url=http://site.com] that contains urls [url=javascript:alert();]';

and the following line of code to validate URLs:

$text = preg_replace('/\[url=([^\\]]+)]/', filter_var('$1', FILTER_VALIDATE_URL), $text);

Output:

“This is a sentence that contains urls”

How can I get the following as output?

“This is a sentence http://site.com that contains urls”

Answer 1

<?php

$text = 'This is a sentence [url=http://site.com] that contains urls [url=javascript:alert();]';


function url($url){
    if(filter_var($url, FILTER_VALIDATE_URL))
        return $url;
    return '';
}


$text = preg_replace('/\[url=([^\\]]+)]/e', 'url("$1")', $text);


echo $text;