Fatal error: Uncaught ArgumentCountError: strcasecmp() expects exactly 2 arguments, 1 given in /home/a061cyberlearner/public_html/Chapter Three/PHPEmail.php:35 Stack trace: #0 /home/a061cyberlearner/public_html/Chapter Three/PHPEmail.php(35): strcasecmp(false) #1 /home/a061cyberlearner/public_html/Chapter Three/PHPEmail.php(45): sortAddresses(Array) #2 {main} thrown in /home/a061cyberlearner/public_html/Chapter Three/PHPEmail.php on line 35