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<?php function reduce_array(array $source) { $picked_mark=array(); $result=array(); foreach($source as $key=>$subarray) { if(in_array(end($subarray),$picked_mark)) continue; $result[$key]=$subarray; $picked_mark[]=end($subarray); } return $result; } print_r(reduce_array(json_decode("[[0,1,2,3,4],[1,2,3,4],[2,3,4]")));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: reduce_array(): Argument #1 ($source) must be of type array, null given, called in /in/JskB2 on line 14 and defined in /in/JskB2:2 Stack trace: #0 /in/JskB2(14): reduce_array(NULL) #1 {main} thrown in /in/JskB2 on line 2
Process exited with code 255.

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