把多维数组按其中一个字段排序
<?php$data = array(
array(
'id' => 5698,
'first_name' => 'Bill',
'last_name' => 'Gates',
),
array(
'id' => 4767,
'first_name' => 'Steve',
'last_name' => 'Aobs',
),
array(
'id' => 3809,
'first_name' => 'Mark',
'last_name' => 'Zuckerberg',
)
);
//根据字段last_name对数组$data进行降序排列
$last_names = array_column($data,'last_name');
array_multisort($last_names,SORT_DESC,$data);
var_dump($data);
?>
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