is numeric in php code example

Example 1: php is numeric

//is_numeric — Finds whether a variable is a number or a numeric string
is_numeric ( $variable ); // returns true or false

Example 2: php check if string or number

<?php if (is_numeric(887)) { echo "Yes"; } else { echo "No"; } ?>

Example 3: php check if string or number

<?php if (is_numeric("cake")) { echo "Yes"; } else { echo "No"; } ?>