Online PHP editor | refs for hBnIE

<?php $arr = [ ['id' => 0, 'name' => '10sdf'], ['id' => 0, 'name' => '12'], ['id' => 0, 'name' => 'aasdfbc'], ['id' => 0, 'name' => 'ada'], ['id' => 0, 'name' => 'asdfsdf'], ]; //排序 usort($arr, function ($a, $b) { if (strlen($a['name']) == strlen($b['name'])) return 0; return strlen($a['name']) < strlen($b['name']) ? -1 : 1; }); //修改key $arr1 = []; array_walk($arr, function ($v,$k) use (&$arr1){ $arr1[$k+1] = $v; }); var_dump($arr1);