Answers for "php get only numeric from string"

php keep only numbers in string

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

php get only numbers from string

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

php get number from string

function get_numerics ($str) {
    preg_match_all('/\d+/', $str, $matches);
    return $matches[0];
}

// this function will return an array of number

$str = "3 dogs were running!";
echo (get_numerics($str)[0]); 

// output 3