PHP sorts according to a certain field in the array

Function introduction:

array_multisort() function returns a sorted array. You can enter one or more arrays. The function sorts the first array first, then the other arrays, and if two or more values are the same, it sorts the next array.

Code example:

1. Sort by single field:

$data = [ ['id' => 1, 'name' => '张三', 'sort' => 60], ['id' => 2, 'name' => '李四', 'sort' => 40], ['id' => 3, 'name' => '王五', 'sort' => 80], ]; // 先取出要排序的字段的值 $sort = array_column($data, 'sort'); // 按照sort字段升序 其中SORT_ASC表示升序 SORT_DESC表示降序 array_multisort($sort, SORT_ASC, $data); // 输出结果 var_dump($data);

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2 , Sorting by multiple fields:

$data = [ ['id' => 1, 'name' => '张三', 'sort' => 60], ['id' => 2, 'name' => '李四', 'sort' => 60], ['id' => 3, 'name' => '王五', 'sort' => 80], ]; // 先取出要排序的字段的值 $sort = array_column($data, 'sort'); $name = array_column($data, 'name'); // 先按照sort字段升序，再按照name字段降序 array_multisort($sort, SORT_ASC, $name, SORT_DESC, $data); // 输出结果 var_dump($data);

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