Online PHP editor | refs for D3g2G

@ 2014-03-25T16:35:37Z

<?php
$tests = array(
    0,
    '0',
    '',
    null,
);

foreach ($tests as $element) {
    if (is_numeric($element)) {
        echo "'{$element}' is numeric", PHP_EOL;
    } else {
        echo "'{$element}' is NOT numeric", PHP_EOL;
    }
}
?>