我在数组中有一个数组,它有文件名,修改时间和大小,但是我需要能够根据这些属性中的每一个来对数组进行升序或降序排序。
我有以下命令,它获取信息
//SCAN THE DIRECTORY
$directories = scandir($dir);
$directinfo = array();
foreach($directories as $directory){
if ($directory === '.' or $directory === '..') continue;
if(!stat($dir.'/'.$directory)){
} else {
$filestat = stat($dir.'/'.$directory);
$directinfo[] = array(
'name' => $directory,
'modtime' => $filestat['mtime'],
'size' => $filestat['size']
);
}
}
数组的结构如下:
Array (
[0] => Array (
[name] => 0 Organisation Details
[modtime] => 1398164749
[size] => 4096
)
[1] => Array (
[name] => 1 Permission Form
[modtime] => 1398164749
[size] => 4096
)
[2] => Array (
[name] => 6 Invoices
[modtime] => 1400802471
[size] => 4096
)
)
,然后用它输出:
foreach($directinfo as $dirInfo){
foreach($dirInfo as $key=>$drInfo){
echo "Output: ".$key."=>".$drInfo."<br />";
}
}
但是我需要在此之前安排数组,并且以某种方式使它不需要两个数组,否则我怀疑有序的输出将无法工作。
我已经看了array_multisort
,但不明白这在这种情况下是如何工作的。
您可以使用ussort:
usort($arr, function($a,$b){
return strcmp($a['name'], $b['name']);
});
var_dump($arr);
http://codepad.viper - 7. - com/lzouso
在array_multisort
手册页面上使用例#3:
$directories = array(
array('name'=>'filec','modtime'=>'12303403434','size'=>'12401'),
array('name'=>'fileb','modtime'=>'12303403432','size'=>'12400'),
array('name'=>'filez', 'modtime'=>'12304445405','size'=>'65200')
);
// Obtain a list of columns
$name = $modtime = $size = array();
foreach ($directories as $key => $row) {
$name[$key] = $row['name'];
$modtime[$key] = $row['modtime'];
$size[$key] = $row['size'];
}
// Sort the data with name ascending, modtime ascending, size ascending
array_multisort($name, SORT_ASC, $modtime, SORT_ASC, $size, SORT_ASC, $directories);
print_r($directories);
在线演示