<?php $input = [ [1, 2, 3, 4], [1, 2, 3, 4], [1, 2, 3, 4], ]; $keys = ['A', 'B', 'C', 'D']; $input = array_map(function($a) use ($keys) { return array_combine($keys, $a); }, $input); var_dump($input);
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