PHP多维数组排序array详解

本篇讲解了PHP多维数组排序array详解。

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($data) <= 0 || empty($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;
 
}

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