我有一个多维数组，需要按顺序按两个自定义条件排序：
array_multisort()和uksort()的文档已经让我分别有一半，但我无法将它们全部放在一起。谢谢你的时间
Array
(
[name] => hashbrowns
[day] => monday
[mealTime] => breakfast
)
Array
(
[name] => Steak
[day] => monday
[mealTime] => dinner
)
Array
(
[name] => Avacados
[day] => tuesday
[mealTime] => dinner
)
Array
(
[name] => Peaches
[day] => tuesday
[mealTime] => lunch
)
Array
(
[name] => Sammich
[day] => monday
[mealTime] => lunch
)
Array
(
[name] => Kale & Sadness
[day] => tuesday
[mealTime] => breakfast
)
所需的输出示例：
Array
(
[name] => hashbrowns
[day] => monday
[mealTime] => breakfast
)
Array
(
[name] => Sammich
[day] => monday
[mealTime] => lunch
)
Array
(
[name] => Steak
[day] => monday
[mealTime] => dinner
)
Array
(
[name] => Kale & Sadness
[day] => tuesday
[mealTime] => breakfast
)
Array
(
[name] => Peaches
[day] => tuesday
[mealTime] => lunch
)
Array
(
[name] => Avacados
[day] => tuesday
[mealTime] => dinner
)
答案 0 :(得分：0)
试试这个解决方案。当然可以使用php函数完成，但发生在你身上的事情似乎有效。
$data = array(
array("name" => "Otra cosa","day" => "thursday","mealTime" => "dinner"),
array("name" => "hashbrowns","day" => "monday","mealTime" => "breakfast"),
array("name" => "Steak","day" => "monday","mealTime" => "dinner"),
array("name" => "Avacados","day" => "tuesday","mealTime" => "dinner"),
array("name" => "Cuchu","day" => "monday","mealTime" => "breakfast"),
array("name" => "Avacados 2","day" => "monday","mealTime" => "lunch"));
$day = array("monday" => 0, "tuesday" => 1, "wednesday" => 2, "thursday" => 3, "friday" => 4, "saturday" => 5, "sunday" => 6);
$mealTime = array("breakfast" =>0, "lunch" =>1, "dinner" => 2);
$result = array();
foreach($data as $values) {
$d = $day[$values["day"]];
$mt = $mealTime[$values["mealTime"]];
if(!isset($result[$d])) {
$result[$d] = array();
}
if(!isset($result[$d][$mt])) {
$result[$d][$mt] = array();
}
$result[$d][$mt][] = $values;
ksort($result[$d]);
}
ksort($result);
$_result = array();
foreach($result as $r) {
foreach($r as $_r) {
foreach($_r as $__r) {
$_result[] = $__r;
}
}
}
return $_result;
//print_r("<pre>");
//print_r($_result);
//print_r("</pre>");
答案 1 :(得分：0)
非常有趣的问题！
我试图从中抽象出来创建一个泛型函数，通过给定的标准数组来排序多维数组。
结果是下面的函数，它的第一个参数是问题中提供的多维数组，第二个参数是一个多维数组的关联数组，每个数组都有一个键作为键排序（即'day'） ）和所需的排序值作为值（即'星期一'，'星期二'，......）。您可以传递一个，两个或更多标准。如果行与条件不匹配，则附加在结果数组的末尾;如果一行具有关键标准，但它们的值不在标准值中（即key ='day'，value ='daily'），则相同。
所以，在你的情况下，你必须这样做：
$menu = //Your array//
$criteria = array
(
'day' => explode( ',', 'monday,tuesday,wednesday,thursday,friday,saturday,sunday' ),
'mealTime' => explode( ',', 'breakfast,lunch,dinner' )
);
$result = sortArrayByCriteria( $menu, $criteria );
你可以在 eval.in demo 中看到结果（我已经在你的数组中添加了一个假项目，以便在存在不匹配时查看行为标准）。
/* Sort a multidimensional array by an array of criteria which keys are
* the key to sort and values are the sort criteria
* Unmatched values are appended at the end of array.
*
* @param array $array array to be sorted
* @param array $criteria array of criteria
*
* @return array sorted array
*/
function sortArrayByCriteria( $array, $criteria )
{
# Extract current (last) criteria and reduce criteria array:
$sortValues = end( $criteria );
$sortKey = key( $criteria );
array_pop( $criteria );
$sorted = $unsorted = array();
foreach( $sortValues as $compare )
{
$key = 0;
# Check each array:
while( $key < count( $array ) )
{
# If array row doesn't have key to sort, add-it to unsorted array:
if( !isset($array[$key][$sortKey]) )
{ $unsorted[] = reset( array_splice( $array, $key, 1 ) ); }
else
{
# If value==current comparisation value, add-it to sorted:
if( $array[$key][$sortKey] == $compare )
{ $sorted[] = reset( array_splice( $array, $key, 1 ) ); }
# If value doesn't is in the comparisation values, add-it to unsorted:
elseif( !in_array( $array[$key][$sortKey], $sortValues ) )
{ $unsorted[] = reset( array_splice( $array, $key, 1 ) ); }
# Otherwise increment index pointer:
else $key++;
}
}
}
# Merge sorted and unsorted values in one array:
$retval = array_merge( $sorted, $unsorted );
# If there are others criteria, performs a self-call:
if( count( $criteria ) ) $retval = sortArrayByCriteria( $retval, $criteria );
return $retval;
}
答案 2 :(得分：0)
只需将mealnumber和daynumber添加到主数组，然后使用array_multisort()按这些数字字段排序，然后将其从数组中删除：
// INITIALIZE SORT ARRAYS
$mealarr = array();
$dayarr = array();
// APPEND TO MAIN AND SORT ARRAYS, NEW MEALNUMEBR AND DAYNUMBER ELEMENTS
for($i=0; $i<sizeof($breakfast); $i++){
foreach ($breakfast[$i] as $key => $value) {
switch ($value) {
case "breakfast": $breakfast[$i]['mealnumber'] = 1; $mealarr[] = 1; break;
case "lunch": $breakfast[$i]['mealnumber'] = 2; $mealarr[] = 2; break;
case "dinner": $breakfast[$i]['mealnumber'] = 3; $mealarr[] = 3; break;
case "monday": $breakfast[$i]['daynumber'] = 1; $dayarr[] = 1; break;
case "tuesday": $breakfast[$i]['daynumber'] = 2; $dayarr[] = 2; break;
case "wednesday": $breakfast[$i]['daynumber'] = 3; $dayarr[] = 3; break;
case "thursday": $breakfast[$i]['daynumber'] = 4; $dayarr[] = 4; break;
case "friday": $breakfast[$i]['daynumber'] = 5; $dayarr[] = 5; break;
case "saturday": $breakfast[$i]['daynumber'] = 6; $dayarr[] = 6; break;
case "sunday": $breakfast[$i]['daynumber'] = 7; $dayarr[] = 7; break;
}
}
}
// SORT MAIN ARRAY
array_multisort($dayarr, SORT_ASC, $mealarr, SORT_ASC, $data);
// REMOVE MEALNUMBER AND DAYNUMBER ELEMENTS
for($i=0; $i<sizeof($data); $i++){
foreach ($data[$i] as $key => $value) {
if ($key=='mealnumber' or $key=='daynumber') {
unset($data[$i][$key]);
}
}
}