如何使用递归操作PHP中的嵌套数组?
我想用递归函数或处理嵌套数组的内置函数替换多个如何使用递归操作PHP中的嵌套数组?,php,arrays,Php,Arrays,我想用递归函数或处理嵌套数组的内置函数替换多个foreach操作 我有一个对象来描述数据库中表之间的关系。每个联接表都是添加到“children”属性的类似对象 "dataObject": "job", "data": { "guid": "{{guid}}" [...] }, "children": { "invoice": { "dataObject": "invoice", "data": {
foreach
操作
我有一个对象来描述数据库中表之间的关系。每个联接表都是添加到“children”属性的类似对象
"dataObject": "job",
"data": {
"guid": "{{guid}}"
[...]
},
"children": {
"invoice": {
"dataObject": "invoice",
"data": {
"guid": "{{guid}}"
[...]
},
"children": {
"payment": {
"dataObject": "payment",
"data": {
"guid": "{{guid}}"
[...]
},
"children": {
"paymentType": {
"dataObject": "paymentType",
"data": {
"guid": "{{guid}}"
[...]
},
"children": null
}
}
}
}
}
}
我可以使用方法将数组中的数据(PDO结果)添加到对象中
$myObject->set($row);
我想以以下形式返回嵌套数组:
{
"job": {
"fcfa88e0-af7b-4829-a02a-0a8bb95a2a99": {
"guid": "fcfa88e0-af7b-4829-a02a-0a8bb95a2a99",
"jobproperty1": "",
"jobproperty2": "",
"invoice": {
"89ff1cd5-d510-4494-8f39-56a68ebb7879": {
"guid": "89ff1cd5-d510-4494-8f39-56a68ebb7879",
"invoiceProperty1": '',
"invoiceProperty2": '',
"payment": {
"1949c62b-6514-4f3d-85a3-07cd7a2b9f8a": {
"guid": 1949c62b-6514-4f3d-85a3-07cd7a2b9f8a,
"paymentProperty1": "",
"paymentProperty2": "",
"paymentType": {
"9800184e-e1fd-4a9d-a6ef-0673bb95c38e": {
"guid": "9800184e-e1fd-4a9d-a6ef-0673bb95c38e",
"title": null,
"paid": null,
}
}
}
}
}
}
}
}
我可以使用多个foreach
操作将其添加到一个outputObject
中来实现这一点,但这看起来很可怕
public function children($rootObject, $row){
$rootObject->set($row);
$this->outputObject->content[$rootObject->guid] = $rootObject->data;
foreach($rootObject->children as $child){
$child->set($row);
$this->outputObject->content[$rootObject->guid][$child->dataObject][$child->guid] = $child->data;
foreach($child->children as $grandchild){
$grandchild->set($row);
$this->outputObject->content[$rootObject->guid][$child->dataObject][$child->guid][$grandchild->dataObject][$grandchild->guid] = $grandchild->data;
foreach($grandchild->children as $greatgrandchild){
$greatgrandchild->set($row);
$this->outputObject->content[$rootObject->guid][$child->dataObject][$child->guid][$grandchild->dataObject][$grandchild->guid][$greatgrandchild->dataObject][$greatgrandchild->guid] = $greatgrandchild->data;
}
}
}
}
我使用递归函数操作outputObject
,但结果不是嵌套的。是否有一个内置或自定义功能可以实现这一点
public function childs($thisObject, $row, $path){
$thisObject->set($row);
$path = $path[$thisObject->dataObject][$thisObject->guid];
$this->outputObject->content[$path][$thisObject->guid] = $thisObject->data;
if(is_array($thisObject->children)){
foreach($thisObject->children as $child){
$this->childs($child, $row, $path);
}
}
}
递归函数的输出不显示嵌套数组,只显示一个维度
{
"content": {
"f": {
"fcfa88e0-af7b-4829-a02a-0a8bb95a2a99": {
"guid": "fcfa88e0-af7b-4829-a02a-0a8bb95a2a99",
"jobProperty1": "...",
"jobProperty2": "..."
},
"1949c62b-6514-4f3d-85a3-07cd7a2b9f8a": {
"guid": "1949c62b-6514-4f3d-85a3-07cd7a2b9f8a",
"paymentProperty1": "...",
"paymentProperty2": "..."
},
"9800184e-e1fd-4a9d-a6ef-0673bb95c38e": {
"guid": "9800184e-e1fd-4a9d-a6ef-0673bb95c38e",
"paymentTypeProperty1": "...",
"paymentTypeProperty2": "..."
},
"89ff1cd5-d510-4494-8f39-56a68ebb7879": {
"guid": "89ff1cd5-d510-4494-8f39-56a68ebb7879",
"invoiceProperty1": "...",
"invoiceProperty2": "..."
}
}
}
}向我们展示您编写的递归函数我更新了我的问题,将递归函数包括在内。当您使用该递归函数时,
$this->outputObject
有什么问题?它只提供了一个包含对象的平面数组。我认为问题在于设置和传递$path变量,但是我不知道如何设置值。向我们展示你编写的递归函数。我更新了我的问题以包含递归函数。当你使用该递归函数时,$this->outputObject
有什么问题吗?它只给出了一个包含对象的平面数组。我认为问题在于设置和传递$path变量,但我不知道如何设置值。