PHP

php get only numbers

$str = 'In My Cart : 11 items';
$int = (int) filter_var($str, FILTER_SANITIZE_NUMBER_INT);

number only in php

## CHECK IF INPUT IS NUMBER ONLY
$number = "12345";
is_numeric($number); ## RETURNS TRUE IF NUMBER ONLY, ELSE FALSE

php validate only numbers

is_numeric($value); //returns true || false