Use preg_* to do time()

Question

I'm kinda stuck here, I made some preg coding to find any 11 digits numbers, but what I don't know how to make it use the found/matched to a function like "preg - time()"

Reminder, the 11 digits will might be found more than one time, so the function should be enable to be used on any of them, maybe a loop on a array or anything?

"#\d{11}#"   -   Quick example on the preg i might will use.

Help!

Answer 1

Use preg_replace_callback to use a custom function to make changes to each of the matches.

function your_custom_function($matches){
    $match = $matches[0];
    // Do something with $match
    return $match;
}
$string = preg_replace_callback(
    "#\d{11}#",
    "your_custom_function",
    $string
);

Answer 2

preg_replace automatically replaces all, and preg_match_all will give you all the matches in the third parameter.

preg_match("/\d{11}/", "Quick example on the preg I might will use", $matches);
print_r($matches);