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<?php $testArray = [ "One" => array(), "Two" => array(), ]; foreach($testArray as $key => $value) { $testArray[$key][] = "Test Value"; } var_dump($testArray);die();
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { ["One"]=> array(1) { [0]=> string(10) "Test Value" } ["Two"]=> array(1) { [0]=> string(10) "Test Value" } }

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