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<?php $a1 = [ ['target_id' => 124], ['target_id' => 234], ['target_id' => 345], ]; $a2 = [ ['target_id' => 123, 'type' => 'node'], ['target_id' => 234, 'type' => 'node'], ['target_id' => 345, 'type' => 'node'], ]; var_dump(array_udiff($a1, $a2, function ($a, $b) { return 0; }));
Output for 7.3.24 - 7.3.33, 7.4.12 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
array(0) { }

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117.02 ms | 403 KiB | 119 Q