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<?php $a = null; $b = array('aa','bb', 'aa', 'cc'); $c = array_unique (array_merge ($a, $b)); print_r($c);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Fatal error: Uncaught TypeError: array_merge(): Argument #1 must be of type array, null given in /in/8avoQ:5 Stack trace: #0 /in/8avoQ(5): array_merge(NULL, Array) #1 {main} thrown in /in/8avoQ on line 5
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: array_merge(): Expected parameter 1 to be an array, null given in /in/8avoQ on line 5 Warning: array_unique() expects parameter 1 to be array, null given in /in/8avoQ on line 5
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33
Warning: array_merge(): Argument #1 is not an array in /in/8avoQ on line 5 Warning: array_unique() expects parameter 1 to be array, null given in /in/8avoQ on line 5
preferences:
246.45 ms | 403 KiB | 295 Q