从小到大，从大到小，PHP 数组排序 - 简书
内容
`$arr = array(
'0' => array(
'num1' => 3,
'num2' => 27
),
'1' => array(
'num1' => 5,
'num2' => 50
),
'2' => array(
'num1' => 4,
'num2' => 44
),
'3' => array(
'num1' => 3,
'num2' => 78
)
);
foreach ($arr as $key => $row) {
$num1[$key] = $row['num1'];
$num2[$key] = $row['num2'];
}
array_multisort($num1, SORT_ASC, $num2, SORT_DESC, $arr);
print_r($arr);`
`$arr = array(
'0' => array(
'num1' => 3,
'num2' => 27
),
'1' => array(
'num1' => 5,
'num2' => 50
),
'2' => array(
'num1' => 4,
'num2' => 44
),
'3' => array(
'num1' => 3,
'num2' => 78
)
);
foreach ($arr as $key => $row) {
$num1[$key] = $row['num1'];
$num2[$key] = $row['num2'];
}
array_multisort($num1, SORT_ASC, $num2, SORT_DESC, $arr);
print_r($arr);`