Online PHP editor | output for kvaIa

@ 2015-09-09T13:20:18Z

<?php
$phonecodes['pl'] = 48;
$country= 'pl';

$tel = '+4812321312312312';

		function checkCountryCode($tel, $part) {
		  global $phonecodes, $country;
			for ($i = 1; $i <= 3; $i++) {
				$codeToCheck = substr($tel, 1, $i);
				foreach ($phonecodes as $key => $val) {
					if ($codeToCheck == $val) {
		          		$code = c;
						echo $code;
						switch($part){
						    case 'phonecode':
						        echo $key;
						    break;
						    case 'a':
						        echo $val;
						    break;
						    case 'd':
						        echo 'dupa';
						}
					}
				}
				
			}
			if ($code == '') echo $country;
		}
		checkCountryCode($tel, 'phonecode');

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Fatal error: Uncaught Error: Undefined constant "c" in /in/kvaIa:13 Stack trace: #0 /in/kvaIa(31): checkCountryCode('+48123213123123...', 'phonecode') #1 {main} thrown in /in/kvaIa on line 13
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: Warning: Use of undefined constant c - assumed 'c' (this will throw an Error in a future version of PHP) in /in/kvaIa on line 13 cpl
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25: Notice: Use of undefined constant c - assumed 'c' in /in/kvaIa on line 13 cpl

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