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<?php $x = array('12' => 34); var_dump($x); var_dump(array_key_exists(true, $x)); var_dump(array_key_exists(12, $x)); var_dump(array_key_exists('12', $x)); var_dump(array_key_exists(12.0, $x));
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
array(1) { [12]=> int(34) } bool(false) bool(true) bool(true) bool(true)
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, 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
array(1) { [12]=> int(34) } Warning: array_key_exists(): The first argument should be either a string or an integer in /in/Oj2ht on line 6 bool(false) bool(true) bool(true) Warning: array_key_exists(): The first argument should be either a string or an integer in /in/Oj2ht on line 9 bool(false)
Output for 4.3.0 - 4.3.1
array(1) { [12]=> int(34) } Warning: array_key_exists() [http://www.php.net/function.array-key-exists]: The first argument should be either a string or an integer in /in/Oj2ht on line 6 bool(false) bool(true) bool(true) Warning: array_key_exists() [http://www.php.net/function.array-key-exists]: The first argument should be either a string or an integer in /in/Oj2ht on line 9 bool(false)
preferences:
298.41 ms | 402 KiB | 456 Q