1. 修改数组键名: $myArray = ['0'=>'Hi','1'=>'Hello','2'=>'Hey']; $myNewArray = array_combine( array_map(function($key){ return 'a'.$key; }, array_keys($myArray)), $myArray ); print_r($myNewArray);   输出: Array ( [a0] => Hi [a1] => Hello [a2] => Hey )   2. 修改数组值:   在每个值后面追加字符 $array = array('a', 'b',… Read More