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<?php $array = array( 0 => null, 1 => null, 2 => null ); if (count(array_keys($users, null, true)) != count($users)) { echo 'true'; } /* if(array_filter($array)) { echo "true\n"; } else echo "false\n"; $array[1] = "test"; if (array_filter($array)) { echo "true\n"; } else echo "false\n"; */
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
Warning: Undefined variable $users in /in/0QilR on line 9 Fatal error: Uncaught TypeError: array_keys(): Argument #1 ($array) must be of type array, null given in /in/0QilR:9 Stack trace: #0 /in/0QilR(9): array_keys(NULL, NULL, true) #1 {main} thrown in /in/0QilR on line 9
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Undefined variable: users in /in/0QilR on line 9 Warning: array_keys() expects parameter 1 to be array, null given in /in/0QilR on line 9 Warning: count(): Parameter must be an array or an object that implements Countable in /in/0QilR on line 9 Notice: Undefined variable: users in /in/0QilR on line 9 Warning: count(): Parameter must be an array or an object that implements Countable in /in/0QilR on line 9
Output for 7.3.32 - 7.3.33, 7.4.26
Warning: array_keys() expects parameter 1 to be array, null given in /in/0QilR on line 9 Warning: count(): Parameter must be an array or an object that implements Countable in /in/0QilR on line 9 Warning: count(): Parameter must be an array or an object that implements Countable in /in/0QilR on line 9
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 - 7.1.20
Notice: Undefined variable: users in /in/0QilR on line 9 Warning: array_keys() expects parameter 1 to be array, null given in /in/0QilR on line 9 Notice: Undefined variable: users in /in/0QilR on line 9
Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Notice: Undefined variable: users in /in/0QilR on line 9 Warning: array_keys(): The first argument should be an array in /in/0QilR on line 9 Notice: Undefined variable: users in /in/0QilR on line 9
Output for 5.0.0 - 5.0.3
Notice: Undefined variable: users in /in/0QilR on line 9 Warning: array_keys(): The first argument should be an array in /in/0QilR on line 9 Notice: Undefined variable: users in /in/0QilR on line 9
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
Notice: Undefined variable: users in /in/0QilR on line 9 Warning: Wrong parameter count for array_keys() in /in/0QilR on line 9 Notice: Undefined variable: users in /in/0QilR on line 9
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251.41 ms | 402 KiB | 315 Q