@ 2014-08-09T02:40:47Z <?php
$data = array('key' => null);
var_dump(isset($data['key']));
var_dump(array_key_exists($data['key']));
var_dump(isset($data['key']) && $data['key']);
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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 bool(false)
Fatal error: Uncaught ArgumentCountError: array_key_exists() expects exactly 2 arguments, 1 given in /in/qT3vQ:5
Stack trace:
#0 /in/qT3vQ(5): array_key_exists(NULL)
#1 {main}
thrown in /in/qT3vQ on line 5
Process exited with code 255 . Output for 5.3.0 - 5.3.29 , 5.4.0 - 5.4.45 , 5.5.0 - 5.5.38 , 5.6.0 - 5.6.40 , 7.0.0 - 7.0.33 , 7.1.0 - 7.1.33 , 7.2.0 - 7.2.33 , 7.3.0 - 7.3.33 , 7.4.0 - 7.4.33 bool(false)
Warning: array_key_exists() expects exactly 2 parameters, 1 given in /in/qT3vQ on line 5
NULL
bool(false)
Output for 4.3.0 - 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 bool(false)
Warning: Wrong parameter count for array_key_exists() in /in/qT3vQ on line 5
NULL
bool(false)
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289.94 ms | 402 KiB | 459 Q