3v4l.org

run code in 300+ PHP versions simultaneously
<?php $lists = [['email' => 'test@test.lv', 'mvars' => ['name' => 'bob']],['email' => 'test@test.lv', 'mvars' => ['name' => 'bob']]]; foreach($lists as $list){ $list = array_map(function($key){ var_dump($key); if($key == 'name'){ unset($key); $key = 'newkey'; } else { } },array_keys($list['mvars'])); }; var_dump($lists);

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