php 对数组排序实例代码
* 对数组排序
* @param array $array 操作的数组
* @param string $type key按键排序,value按值排序
* @param string $field 字段名
* @param string $order 排序方式asc顺序desc逆序
* @return void
*/
public static function sort(&$array, $type = 'value', $field = NULL, $order = 'asc') {
if ($field) {
foreach ($array as $key => $value) {
$temp[$key] = $value[$field];
}
if ($order=='asc') {
asort($temp);
} else {
arsort($temp);
}
$newarray = array();
foreach ($temp as $key => $value) {
$newarray[] = $array[$key];
}
$array = $newarray;
} else {
if ($type=='key') {
if ($order=='asc') {
ksort($array);
} else {
krsort($array);
}
} else {
if ($order=='asc') {
asort($array);
} else {
arsort($array);
}
}
}
}