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<?php $a = array('cifras'=>array(array('ordem'=>1),array('ordem'=>2),array('ordem'=>3))); function abc(&$item) { $item['ordem']++; } array_walk($a['cifras'],'abc'); var_dump($a);
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { ["cifras"]=> array(3) { [0]=> array(1) { ["ordem"]=> int(2) } [1]=> array(1) { ["ordem"]=> int(3) } [2]=> array(1) { ["ordem"]=> int(4) } } }

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