checkPrivileges.php

<?php
function checkPrivileges(string $token, string $requested_privilege, array $tokens) : bool {
	
	if(!isset($tokens[$token])) {
		return false;
	}
	
	foreach($tokens[$token]['privileges'] as $privilege) {
		
		if($privilege === '*') {
			return true;
		} else if($privilege == $requested_privilege) {
			return true;
		}
		
		return false;
	}//end foreach	
}