only grab numbers from string php code example

Example 1: php keep only numbers in string

$str = preg_replace('/[^0-9.]+/', '', $str);

Example 2: Extract Numbers From a String in PHP

phpCopy<?php 
$string = 'Sarah has 4 dolls and 6 bunnies.';
$int = (int) filter_var($string, FILTER_SANITIZE_NUMBER_INT);  
echo("The extracted numbers are: $int \n"); 
?>