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<?php $array = [['instances' => [1,2]], ['instances' => [3,4]]]; print_r($array); $flatPath = '0/instances/0'; $keys = explode('/', $flatPath); $endKey = array_pop($keys); $arr = &$array; foreach ($keys as $key) { $arr = &$arr[$key]; } unset($arr[$endKey]); unset($arr); print_r($array);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => Array ( [instances] => Array ( [0] => 1 [1] => 2 ) ) [1] => Array ( [instances] => Array ( [0] => 3 [1] => 4 ) ) ) Array ( [0] => Array ( [instances] => Array ( [1] => 2 ) ) [1] => Array ( [instances] => Array ( [0] => 3 [1] => 4 ) ) )

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