PHP中多维数组的数组\多排序问题
我有以下数组:PHP中多维数组的数组\多排序问题,php,sorting,Php,Sorting,我有以下数组: array(10) { [0]=> array(109) { ["id"]=> string(4) "2632", ["_category_sortorder"] => 8, ["_sortorder" => 1] }, [1]=> array(109) { ["id"]=> string(4) "2635", ["_category_s
array(10) {
[0]=> array(109) {
["id"]=> string(4) "2632", ["_category_sortorder"] => 8, ["_sortorder" => 1]
},
[1]=> array(109) {
["id"]=> string(4) "2635", ["_category_sortorder"] => 5, ["_sortorder" => 2]
},
...
}
我想根据两个标准对其进行排序:
a) 按\u类别\u排序器
asc(具有优先级)
b) 通过\u分拣机asc
我试过这个:
foreach($resources as $k => $v) {
$sort[$k]['_category_sortorder'] = $resources[$k]['_category_sortorder'];
$sort[$k]['_sortorder'] = $resources[$k]['_sortorder'];
}
array_multisort($sort['_category_sortorder'], SORT_ASC, $sort['_sortorder'], SORT_ASC, $resources);
但它并没有像预期的那样工作。有什么建议吗?试试这个
$sort = array(
array("id"=>"263", "_category_sortorder"=> 8, "_sortorder" => 1),
array( "id"=> "145", "_category_sortorder" => 155, "_sortorder" => 2),
array( "id"=> "2145", "_category_sortorder" => 55, "_sortorder" => 12),
array( "id"=> "3145", "_category_sortorder" => 155, "_sortorder" => 10),
);
usort($sort, function(array $a, array $b) {
return $b['_category_sortorder'] - $a['_category_sortorder'];
});
echo '<pre>';
print_r($sort);
echo '</pre>';
$sort=array(
数组(“id”=>“263”、“\u category\u sortorder”=>8、\u sortorder”=>1),
数组(“id”=>“145”、“\u category\u sortorder”=>155、\u sortorder”=>2),
数组(“id”=>“2145”、“\u类别\u排序器”=>55、\u排序器”=>12),
数组(“id”=>“3145”、“类别”=>155、“\u排序器”=>10),
);
usort($sort,function(数组$a,数组$b){
返回$b[“类别”排序器]-$a[“类别”排序器];
});
回声';
打印(排序);
回声';
我认为有一个简单的解决方案,但此代码块所做的是:
将数组拆分为子数组,其中仅包含具有相同_category_sortorder值的元素。然后使用usort对每个子数组进行排序。最后,将它们合并在一起
tryusort()
并定义排序行为可以尝试翻转数组array\u multisort($sort[''u sortorder',sort\u ASC,$sort[''u category\u sortorder',sort\u ASC,$resources)代码>谢谢,这适用于\u category\u sortorder
,但是\u sortorder
呢?再次调用usort
?是的,如果要使用_sortorder对其进行排序,则需要再次执行。但请记住,在临时数组中按_category_sortorder对数组进行排序,否则它将丢失
<?php
$array = [
['id' => 1, '_category_sortorder' => 2, '_sortorder' => 1],
['id' => 2, '_category_sortorder' => 2, '_sortorder' => 3],
['id' => 3, '_category_sortorder' => 3, '_sortorder' => 19],
['id' => 4, '_category_sortorder' => 1, '_sortorder' => 2],
['id' => 5, '_category_sortorder' => 1, '_sortorder' => 1],
];
foreach ($array as $value) {
if (!isset($newElements[$value['_category_sortorder']]))
$newElements[$value['_category_sortorder']] = [];
$newElements[$value['_category_sortorder']][] = $value;
}
$array = [];
foreach ($newElements as $key => $value) {
usort($value, function($a, $b) {
return strcmp($a["_sortorder"], $b["_sortorder"]);
});
$array[$key] = $value;
}
ksort($array);
$new = [];
foreach ($array as $value) {
$new = array_merge($new, $value);
}
echo "<pre>".print_r($new, true).'</pre>';