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<?php $x = array('u'=>123); $ids = array_map('reset', $x); var_dump($ids);
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: reset(): Argument #1 ($array) must be passed by reference, value given in /in/1DJTK on line 3 Fatal error: Uncaught TypeError: reset(): Argument #1 ($array) must be of type array, int given in /in/1DJTK:3 Stack trace: #0 [internal function]: reset(123) #1 /in/1DJTK(3): array_map('reset', Array) #2 {main} thrown in /in/1DJTK on line 3
Process exited with code 255.
Output for 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
Warning: reset() expects parameter 1 to be array, int given in /in/1DJTK on line 3 array(1) { ["u"]=> NULL }
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33
Warning: reset() expects parameter 1 to be array, integer given in /in/1DJTK on line 3 array(1) { ["u"]=> NULL }
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: reset(): Passed variable is not an array or object in /in/1DJTK on line 3 array(1) { ["u"]=> bool(false) }
Output for 4.3.0 - 4.3.1
Warning: reset() [http://www.php.net/function.reset]: Passed variable is not an array or object in /in/1DJTK on line 3 array(1) { ["u"]=> bool(false) }

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