3v4l.org

run code in 300+ PHP versions simultaneously

sponsor
bughunt
search
recent
about

@ 2016-06-14T09:44:35Z

<?php
$str = 'fdfqsdfqsdf%A%2%B%4%C%D%7sddsdfsdf';

$res = preg_replace_callback(',%.?,', function (array $matches) {
    if (preg_match(',%\d+,', $matches[0])) {
        return 'FOO';
    }
}, $str);
echo $res;

$res = preg_replace_callback(',%\d+?,', function (array $matches) {
    return 'FOO';
}, $str);
echo $res;

Output
Performance
VLD
References
Branches

preg_replace_callback: documentation ( source)
preg_match: documentation ( source)

preferences:dark modelive preview

35.09 ms | 402 KiB | 5 Q