<?php $values = [ 'a' => 1, 'b' => 2, 'c' => 3, ]; $mapping = [ 'x' => 'a', 'y' => 'b', 'z' => 'c', ]; $combined = array_map(function ($key) use ($values) { return $values[$key] }, $mapping); var_dump($combined);
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