<?php class User { public $username; public $name; public function __construct($username) { $this->username = $username; $this->name = str_replace(' ', '', $username); } } $users = array( new User('user 1'), new User('user 2'), new User('user 3') ); function new_array_column($input , $column_key, $index_key = null) { $result = array(); array_walk($input, function($value, $key) use (&$result, $column_key, $index_key) { $result[empty($index_key) ? $key : is_object($value) ? $value->{$index_key} : $value[$index_key]] = empty($column_key) ? $value : (is_object($value) ? $value->{$column_key} : $value[$column_key]); }); return $result; } print_r( new_array_column($users, null, 'name') );
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