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<?php $arr = [ 't' => [1,2,3], 'b' => [4,5,6] ]; $return = array_map( function ($tasks) { return $tasks; }, $tasksByDays ); var_dump($return);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $tasksByDays in /in/3TLRX on line 12 Fatal error: Uncaught TypeError: array_map(): Argument #2 ($array) must be of type array, null given in /in/3TLRX:8 Stack trace: #0 /in/3TLRX(8): array_map(Object(Closure), NULL) #1 {main} thrown in /in/3TLRX on line 8
Process exited with code 255.

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