3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ ["foo" => "bar1", "hey" => "now"], ["foo" => "bar2", "hey" => "what"], [0 => "zero", 1 => "one"] ]; var_export(array_map('current', $array));
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
array ( 0 => 'bar1', 1 => 'bar2', 2 => 'zero', )

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