PHP多维数组排序array详解
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PHP数组Array按字段排序
- /**
- * Sort array by filed and type, common utility method.
- * @param array $data
- * @param string $sort_filed
- * @param string $sort_type SORT_ASC or SORT_DESC
- */
- public function sortByOneField($data, $filed, $type)
- {
- if (count($data) <= 0) {
- return $data;
- }
- foreach ($data as $key => $value) {
- $temp[$key] = $value[$filed];
- }
- array_multisort($temp, $type, $data);
- return $data;
- }
PHP数组Array按二维排序,先按第一个字段排序,再按第二个字段排序
- /**
- * Sort array by filed and type, common utility method.
- * @param array $array
- * @param string $filed1
- * @param string $type1 SORT_ASC or SORT_DESC
- * @param string $filed2
- * @param string $type2 SORT_ASC or SORT_DESC
- */
- public function sortByTwoFiled($data, $filed1, $type1, $filed2, $type2)
- {
- if (count($data) <= 0) {
- return $data;
- }
- foreach ($data as $key => $value) {
- $temp_array1[$key] = $value[$filed1];
- $temp_array2[$key] = $value[$filed2];
- }
- array_multisort($temp_array1, $type1, $temp_array2, $type2, $data);
- return $users;
- }
sortMultiArray()最多支持3维数组排序,当然可以扩充的,自定义方法重载实现对多维数字的排序,这里的多维是说数据的多个字段。
使用方法:
1. sortMultiArray($data, [‘score' => SORT_DESC])
2. sortMultiArray($data, [‘score' => SORT_DESC, ‘count' => SORT_ASC])
3. sortMultiArray($data, [‘score' => SORT_DESC, ‘count' => SORT_ASC, ‘name' => SORT_ASC])
- /**
- * Sort multi array by filed and type.
- * @param data $array
- * @param condition $array
- */
- public function sortMultiArray(&$data, $condition)
- {
- if (count($data) <= 0 || emptyempty($condition)) {
- return $data;
- }
- $dimension = count($condition);
- $fileds = array_keys($condition);
- $types = array_values($condition);
- switch ($dimension) {
- case 1:
- $data = $this->sort1Dimension($data, $fileds[0], $types[0]);
- break;
- case 2:
- $data = $this->sort2Dimension($data, $fileds[0], $types[0], $fileds[1], $types[1]);
- break;
- default:
- $data = $this->sort3Dimension($data, $fileds[0], $types[0], $fileds[1], $types[1], $fileds[2], $types[2]);
- break;
- }
- return $data;
- }
- public function sort1Dimension(&$data, $filed, $type)
- {
- if (count($data) <= 0) {
- return $data;
- }
- foreach ($data as $key => $value) {
- $temp[$key] = $value[$filed];
- }
- array_multisort($temp, $type, $data);
- return $data;
- }
- public function sort2Dimension(&$data, $filed1, $type1, $filed2, $type2)
- {
- if (count($data) <= 0) {
- return $data;
- }
- foreach ($data as $key => $value) {
- $sort_filed1[$key] = $value[$filed1];
- $sort_filed2[$key] = $value[$filed2];
- }
- array_multisort($sort_filed1, $type1, $sort_filed2, $type2, $data);
- return $data;
- }
- public function sort3Dimension(&$data, $filed1, $type1, $filed2, $type2, $filed3, $type3)
- {
- if (count($data) <= 0) {
- return $data;
- }
- foreach ($data as $key => $value) {
- $sort_filed1[$key] = $value[$filed1];
- $sort_filed2[$key] = $value[$filed2];
- $sort_filed3[$key] = $value[$filed3];
- }
- array_multisort($sort_filed1, $type1, $sort_filed2, $type2, $sort_filed3, $type3, $data);
- return $data;
- }