本文章给大家整一个php 多维数组的排序实现代码,我们在实际编码中将会用到php函数array_multisort()来实现这一复杂的排序,有需要了解的朋友可参考。
如数组
代码如下 复制代码
array
(
[0] => array
(
[id] => 1146
[orderid] => 3
)
[1] => array
(
[id] => 1149
[orderid] => 2
)
[2] => array
(
[id] => 170
[orderid] => 4
)
[3] => array
(
[id] => 1121
[orderid] => 3
)
[4] => array
(
[id] => 1120
[orderid] => 7
)
)
这么一个数据,想按orderid来排序。找不到内置的php函数,网上搜索了下,发现如下方法:
代码如下 复制代码
$asc_func = create_function('$a,$b','
$k = orderid;
if($a[$k] == $b[$k]) return 0;
return $a[$k]>$b[$k]?1:-1;
');
usort($arrs,$asc_func);
$arrs是原数组,$k=orderid是要排序的字段
后来对上面代码进行了升级
代码如下 复制代码
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 {
$arg = func_get_arg($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;
}