PHP中二维数组的排序方法
欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入 本文介绍的是从 BugFree 摘录来的二维数组排序函数,可以实现类似 MySQL 的 ORDER BY 效果,当数组不是从数据库取得时会有特殊应用。 ?php // 说明:PHP中二维数组的排序方法 // 整理:http://www.xk
欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入
本文介绍的是从 BugFree 摘录来的二维数组排序函数,可以实现类似 MySQL 的 ORDER BY 效果,当数组不是从数据库取得时会有特殊应用。
// 说明:PHP中二维数组的排序方法
// 整理:http://www.xker.com
/**
* @package BugFree
* @version $Id: FunctionsMain.inc.php,v 1.32 2005/09/24 11:38:37 wwccss Exp $
*
*
* 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
* @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
);
?>