Simple Addition Function Without Arguments in php

addition.php

<?php
/*
	simple function to get addition of some or more varible at once without doing much coding 
	just use addition(2,3,4,3/4,2-1); you can use what ever you want
*/
function addition(){ 
	$output = 0;
	$arguments = func_get_args();
	foreach ($arguments as $arg){
		$output += $arg; 
	}
	return $output;
}
echo addition(2,2,5,7,8,9); //output 33
?>