3v4l.org

run code in 300+ PHP versions simultaneously
<?php $values = array('1','2'); var_dump(!count(array_filter('is_array', $values))); var_dump(isset($values[0]), $values[0]); var_dump(isset($values[0][0]), $values[0][0]);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught TypeError: array_filter(): Argument #1 ($array) must be of type array, string given in /in/XqieD:3 Stack trace: #0 /in/XqieD(3): array_filter('is_array', Array) #1 {main} thrown in /in/XqieD on line 3
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: array_filter() expects parameter 1 to be array, string given in /in/XqieD on line 3 Warning: count(): Parameter must be an array or an object that implements Countable in /in/XqieD on line 3 bool(true) bool(true) string(1) "1" bool(true) string(1) "1"
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25
Warning: array_filter() expects parameter 1 to be array, string given in /in/XqieD on line 3 bool(true) bool(true) string(1) "1" bool(true) string(1) "1"
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Warning: array_filter(): The first argument should be an array in /in/XqieD on line 3 bool(true) bool(true) string(1) "1" bool(true) string(1) "1"
Output for 4.3.0 - 4.3.1
Warning: array_filter() [http://www.php.net/function.array-filter]: The first argument should be an array in /in/XqieD on line 3 bool(true) bool(true) string(1) "1" bool(true) string(1) "1"

preferences:
266.38 ms | 401 KiB | 325 Q