json 数组按 php 中的值排序
json array sort by value in php
我有 JSON 个对象数组。我正在尝试使用 usort 对数组进行排序。我想使用 field_listing_order 中的 value 字段。它使用值排序。我遗漏了一些东西，但无法弄清楚。请查看代码。谢谢！
stdClass Object
(
[node_title] => abc
[nid] => 2281
[field_api_order_value] => 201
[field_node_entity_type] => node
[_data] => Array
(
[nid] => Array
(
[entity_type] => node
[entity] => stdClass Object
(
[title] => abc
[field_listing_order] => Array
(
[und] => Array
(
[0] => Array
(
[value] => 8
[format] =>
[safe_value] => 8
)
)
)
)
)
)
)
stdClass Object
(
[node_title] => abc
[nid] => 2243
[field_api_order_value] => 204
[field_node_entity_type] => node
[_data] => Array
(
[nid] => Array
(
[entity_type] => node
[entity] => stdClass Object
(
[title] => abc
[field_listing_order] => Array
(
[und] => Array
(
[0] => Array
(
[value] => 3
[format] =>
[safe_value] => 3
)
)
)
)
)
)
) stdClass Object
(
[node_title] => abc
[nid] => 2431
[field_api_order_value] => 242
[field_node_entity_type] => node
[_data] => Array
(
[nid] => Array
(
[entity_type] => node
[entity] => stdClass Object
(
[title] => abc
[field_listing_order] => Array
(
[und] => Array
(
[0] => Array
(
[value] => 1
[format] =>
[safe_value] => 1
)
)
)
)
)
)
)
等等...
foreach ($view->result as $result) {
$node = $result->_data['nid']['entity'];
$listing_order = $node->field_listing_order[LANGUAGE_NONE][0];
.....
// code goes here and it works well. sorting issue
}
usort ($node->field_listing_order[LANGUAGE_NONE][0], function($a, $b){
return strcmp($a->value, $b->value);
}); ?>
如果您需要使用 field_listing_order 值对所有节点进行排序，则需要比较从第一个对象到值的完整路径上的值：
usort($view->result, function($a, $b) {
$la = $a->_data['nid']['entity']->field_listing_order[LANGUAGE_NONE][0]['value'];
$lb = $b->_data['nid']['entity']->field_listing_order[LANGUAGE_NONE][0]['value'];
return $la - $lb ;
});
在这种情况下，$a 和 $b 是两个不同的节点，可以进行比较。这就是为什么您应该比较这些节点的 field_listing_order 值的原因。答案是使用 $la- $lb
我有 JSON 个对象数组。我正在尝试使用 usort 对数组进行排序。我想使用 field_listing_order 中的 value 字段。它使用值排序。我遗漏了一些东西，但无法弄清楚。请查看代码。谢谢！
stdClass Object
(
[node_title] => abc
[nid] => 2281
[field_api_order_value] => 201
[field_node_entity_type] => node
[_data] => Array
(
[nid] => Array
(
[entity_type] => node
[entity] => stdClass Object
(
[title] => abc
[field_listing_order] => Array
(
[und] => Array
(
[0] => Array
(
[value] => 8
[format] =>
[safe_value] => 8
)
)
)
)
)
)
)
stdClass Object
(
[node_title] => abc
[nid] => 2243
[field_api_order_value] => 204
[field_node_entity_type] => node
[_data] => Array
(
[nid] => Array
(
[entity_type] => node
[entity] => stdClass Object
(
[title] => abc
[field_listing_order] => Array
(
[und] => Array
(
[0] => Array
(
[value] => 3
[format] =>
[safe_value] => 3
)
)
)
)
)
)
) stdClass Object
(
[node_title] => abc
[nid] => 2431
[field_api_order_value] => 242
[field_node_entity_type] => node
[_data] => Array
(
[nid] => Array
(
[entity_type] => node
[entity] => stdClass Object
(
[title] => abc
[field_listing_order] => Array
(
[und] => Array
(
[0] => Array
(
[value] => 1
[format] =>
[safe_value] => 1
)
)
)
)
)
)
)
等等...
foreach ($view->result as $result) {
$node = $result->_data['nid']['entity'];
$listing_order = $node->field_listing_order[LANGUAGE_NONE][0];
.....
// code goes here and it works well. sorting issue
}
usort ($node->field_listing_order[LANGUAGE_NONE][0], function($a, $b){
return strcmp($a->value, $b->value);
}); ?>
如果您需要使用 field_listing_order 值对所有节点进行排序，则需要比较从第一个对象到值的完整路径上的值：
usort($view->result, function($a, $b) {
$la = $a->_data['nid']['entity']->field_listing_order[LANGUAGE_NONE][0]['value'];
$lb = $b->_data['nid']['entity']->field_listing_order[LANGUAGE_NONE][0]['value'];
return $la - $lb ;
});
在这种情况下，$a 和 $b 是两个不同的节点，可以进行比较。这就是为什么您应该比较这些节点的 field_listing_order 值的原因。答案是使用 $la- $lb