<?php $names = array( array('id' => 123, 'name' => 'A'), array('id' => 456, 'name' => 'B'), array('id' => 789, 'name' => 'C'), ); $ids = array_map(function ($name) { return $name['id']; }, $names); var_dump($ids); // output array(3) { [0] => int(123) [1] => int(456) [2] => int(789) }
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