【收藏】php实现二维数组排序

<?php

/**
* Sort an two-dimension array by some level two items use array_multisort() function.
*
* sysSortArray($Array,"Key1","SORT_ASC","SORT_RETULAR","Key2"……)
* @author                      Chunsheng Wang <wwccss@263.net>
* @param  array   $ArrayData   the array to sort.
* @param  string  $KeyName1    the first item to sort by.
* @param  string  $SortOrder1  the order to sort by("SORT_ASC"|"SORT_DESC")
* @param  string  $SortType1   the sort type("SORT_REGULAR"|"SORT_NUMERIC"|"SORT_STRING")
* @return array                sorted array.
*/
function sysSortArray($ArrayData, $KeyName1, $SortOrder1 = "SORT_ASC", $SortType1 = "SORT_REGULAR") {
if (!is_array($ArrayData)) {
return $ArrayData;
}

// Get args number.
$ArgCount = func_num_args();

// Get keys to sort by and put them to SortRule array.
for ($I = 1; $I < $ArgCount; $I++) {
$Arg = func_get_arg($I);
if (!eregi("SORT", $Arg)) {
$KeyNameList[] = $Arg;
$SortRule[] = '$' . $Arg;
} else {
$SortRule[] = $Arg;
}
}

// Get the values according to the keys and put them to array.
foreach ($ArrayData AS $Key => $Info) {
foreach ($KeyNameList AS $KeyName) {
${$KeyName}[$Key] = $Info[$KeyName];
}
}

// Create the eval string and eval it.
$EvalString = 'array_multisort(' . join(",", $SortRule) . ',$ArrayData);';
eval($EvalString);
return $ArrayData;
}

//################# 示例 #################
$arr = array(
array(
'name' => '学习',
'size' => '1235',
'type' => 'jpe',
'time' => '1921-11-13',
'class' => 'dd',
),
array(
'name' => '中国功夫',
'size' => '153',
'type' => 'jpe',
'time' => '2005-11-13',
'class' => 'jj',
),
array(
'name' => '编程',
'size' => '35',
'type' => 'gif',
'time' => '1997-11-13',
'class' => 'dd',
),
array(
'name' => '中国功夫',
'size' => '65',
'type' => 'jpe',
'time' => '1925-02-13',
'class' => 'yy',
),
array(
'name' => '中国功夫',
'size' => '5',
'type' => 'icon',
'time' => '1967-12-13',
'class' => 'rr',
),
);

print_r($arr);

//注意：按照数字方式排序时 153 比 65 小
$temp = sysSortArray($arr, "name", "SORT_ASC", "type", "SORT_DESC", "size", "SORT_ASC", "SORT_STRING");

print_r($temp);
?>