Online PHP editor | refs for XaXYq

<?php $tests = array( "42", "1337", "0x539", "02471", "0b10100111001", "1337e0", "not numeric", array(), "9.1", ); foreach ($tests as $element) { if (is_numeric($element)) { echo "'{$element}' is numeric:", var_dump((float) $element), PHP_EOL; } else { echo "'{$element}' is NOT numeric", PHP_EOL; } }