ParamsReturnSource
Checks to see if all the values in the array are numeric.

Parameters

  • array $array The array to check. If null, the value of the current Set object.

Returns

mixed `true` if values are numeric, `false` if not and `null` if the array to check is empty.

Source

						public static function isNumeric($array = null) {
		if (empty($array)) {
			return null;
		}
		if ($array === range(0, count($array) - 1)) {
			return true;
		}
		$numeric = true;
		$keys = array_keys($array);
		$count = count($keys);

		for ($i = 0; $i < $count; $i++) {
			if (!is_numeric($array[$keys[$i]])) {
				$numeric = false;
				break;
			}
		}
		return $numeric;
	}