Duration number on Numeric

How To make a Code like "If(!is_numeric($args[0]))" then If The number is pass over 12 Number then "Lower 12 !"?

 

In the example you've shown, you check if the given value is NOT numeric. After that, you can write another if statement to check if the value is lower and/or higher using PHP comparison operators (they are basically the same as in most programming languages).

See example

PHP:

$givenValue = $args[0];

if(!is_numeric($givenValue)) {
    // Given value is not numeric, notify sender
    return; // to stop code execution
}

$givenValue = (int) $givenValue; // Cast it to integer, or float if necessary (both are numeric values)
// Casting it to integer with given float string, then decimals will be dropped

// Perform comparison
if($givenValue > 12) {
    $sender->sendMessage('Given value was higher than twelve');
}
if($givenValue < 12) {
    $sender->sendMessage('Given value was lower than twelve');
}
if($givenValue === 12) {
    $sender->sendMessage('Given value is identical 12');
}

// Statements above cover three possible states, meaning that one of the sendMessage methods will be called.