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<?php $choices = array( 10 => array('10', '100'), 20 => array('20', '400'), ); var_dump($choices); foreach ($choices as $choice) { $choice[0] += 1; } var_dump($choices); foreach ($choices as &$choice) { $choice[0] += 1; } var_dump($choices);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [10]=> array(2) { [0]=> string(2) "10" [1]=> string(3) "100" } [20]=> array(2) { [0]=> string(2) "20" [1]=> string(3) "400" } } array(2) { [10]=> array(2) { [0]=> string(2) "10" [1]=> string(3) "100" } [20]=> array(2) { [0]=> string(2) "20" [1]=> string(3) "400" } } array(2) { [10]=> array(2) { [0]=> int(11) [1]=> string(3) "100" } [20]=> &array(2) { [0]=> int(21) [1]=> string(3) "400" } }

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