Do you want to extract numbers from a string using PHP? Use the below code for it

<?php
$str="I have 12 dogs and 20 cats";
preg_match_all('!\d+!', $str, $matches);
print_r($matches);
?>

This code will give output in an array format like given below. Array ( [0] => Array ( [0] => 12 [1] => 20 ) )