php - 如何使用stdClass()将数组转换为对象
这个问题在这里已有答案:
如何在PHP中将数组转换为对象? 31个答案
我做了以下数组:
$clasa = array(
'e1' => array('nume' => 'Nitu', 'prenume' => 'Andrei', 'sex' => 'm', 'varsta' => 23),
'e2' => array('nume' => 'Nae', 'prenume' => 'Ionel', 'sex' => 'm', 'varsta' => 27),
'e3' => array('nume' => 'Noman', 'prenume' => 'Alice', 'sex' => 'f', 'varsta' => 22),
'e4' => array('nume' => 'Geangos', 'prenume' => 'Bogdan', 'sex' => 'm', 'varsta' => 23),
'e5' => array('nume' => 'Vasile', 'prenume' => 'Mihai', 'sex' => 'm', 'varsta' => 25)
);
我想知道如何使用stdClass()将这个数组转换为一个对象,我是一个PHP初学者,一个简单的例子会非常有帮助,我已经尝试过搜索类似的问题,但答案很复杂 超越我对基本类和对象的理解。
8个解决方案
181 votes
您只需添加此代码即可
$clasa = (object) array(
'e1' => array('nume' => 'Nitu', 'prenume' => 'Andrei', 'sex' => 'm', 'varsta' => 23),
'e2' => array('nume' => 'Nae', 'prenume' => 'Ionel', 'sex' => 'm', 'varsta' => 27),
'e3' => array('nume' => 'Noman', 'prenume' => 'Alice', 'sex' => 'f', 'varsta' => 22),
'e4' => array('nume' => 'Geangos', 'prenume' => 'Bogdan', 'sex' => 'm', 'varsta' => 23),
'e5' => array('nume' => 'Vasile', 'prenume' => 'Mihai', 'sex' => 'm', 'varsta' => 25)
);
如果你想看到这个stdClass对象只是调用它
print_r($clasa);
如果要将数组转换为对象代码即可
$arr = array('a'=>'apple','b'=>'ball');
$arr = (object) $arr;
您不需要使用stdClass。 它会自动转换为stdClass
Ekramul Hoque answered -08-26T10:25:07Z
49 votes
快速而肮脏的方式是使用json_encode和$obj->e5->nume,它将整个数组(包括子元素)转换为对象。
$clasa = json_decode(json_encode($clasa)); //Turn it into an object
可以使用相同的方法将对象转换为数组。 只需添加$obj->e5->nume至json_decode以返回相关的阵列:
$clasa = json_decode(json_encode($clasa), true); //Turn it into an array
另一种方式(没有脏)只是一个递归函数:
function convertToObject($array) {
$object = new stdClass();
foreach ($array as $key => $value) {
if (is_array($value)) {
$value = convertToObject($value);
}
$object->$key = $value;
}
return $object;
}
或完整代码:
function convertToObject($array) {
$object = new stdClass();
foreach ($array as $key => $value) {
if (is_array($value)) {
$value = convertToObject($value);
}
$object->$key = $value;
}
return $object;
}
$clasa = array(
'e1' => array('nume' => 'Nitu', 'prenume' => 'Andrei', 'sex' => 'm', 'varsta' => 23),
'e2' => array('nume' => 'Nae', 'prenume' => 'Ionel', 'sex' => 'm', 'varsta' => 27),
'e3' => array('nume' => 'Noman', 'prenume' => 'Alice', 'sex' => 'f', 'varsta' => 22),
'e4' => array('nume' => 'Geangos', 'prenume' => 'Bogdan', 'sex' => 'm', 'varsta' => 23),
'e5' => array('nume' => 'Vasile', 'prenume' => 'Mihai', 'sex' => 'm', 'varsta' => 25)
);
$obj = convertToObject($clasa);
print_r($obj);
?>
输出(请注意,没有数组 - 只有$obj->e5->nume' s):
stdClass Object
(
[e1] => stdClass Object
(
[nume] => Nitu
[prenume] => Andrei
[sex] => m
[varsta] => 23
)
[e2] => stdClass Object
(
[nume] => Nae
[prenume] => Ionel
[sex] => m
[varsta] => 27
)
[e3] => stdClass Object
(
[nume] => Noman
[prenume] => Alice
[sex] => f
[varsta] => 22
)
[e4] => stdClass Object
(
[nume] => Geangos
[prenume] => Bogdan
[sex] => m
[varsta] => 23
)
[e5] => stdClass Object
(
[nume] => Vasile
[prenume] => Mihai
[sex] => m
[varsta] => 25
)
)
所以你可以通过$obj->e5->nume来参考它。
DEMO
h2ooooooo answered -08-26T10:26:09Z
16 votes
如果你想以递归方式将整个数组转换为Object类型(stdClass),那么下面是最好的方法,它不耗时或内存不足,特别是当你想进行递归(多级)转换时 与编写自己的功能相比。
$array_object = json_decode(json_encode($array));
darleys answered -08-26T10:26:36Z
6 votes
最简单的解决方案之一是
$objectData = (object) $arrayData
SESN answered -08-26T10:27:00Z
5 votes
要使用stdClass将数组转换为对象,只需将(object)添加到数组u声明。
EX:
echo $array['value'];
echo $object->value;
将对象转换为数组
$obj = (object)$array;
将数组转换为对象
$arr = (array)$object
使用这些方法,您可以非常轻松地在数组和对象之间切换。
另一种方法是使用json
$object = json_decode(json_encode($array), FALSE);
但这是一种内存密集程度更高的方式,并且不受PHP< = 5.1版本的支持
Vikas_web answered -08-26T10:28:03Z
4 votes
数组到stdClass可以用php这种方式完成。(stdClass已经是PHP的通用空类)
$a = stdClass:: __set_state(array());
实际上在PHP 5中调用stdClass :: __ set_state()会产生致命错误。 谢谢@Ozzy指出
这是一个如何在PHP5中将__set_state()与stdClass对象一起使用的示例
class stdClassHelper{
public static function __set_state(array $array){
$stdClass = new stdClass();
foreach ($array as $key => $value){
$stdClass->$key = $value;
}
return $stdClass;
}
}
$newstd = stdClassHelper::__set_state(array());
或者更好的方式。
$a = (object) array();
Beaudinn Greve answered -08-26T10:28:49Z
3 votes
或者你可以使用这个东西
$arr = [1,2,3];
$obj = json_decode(json_encode($arr));
print_r($obj);
yussan answered -08-26T10:29:13Z
1 votes
使用本教程
function objectToArray($d) {
if (is_object($d)) {
// Gets the properties of the given object
// with get_object_vars function
$d = get_object_vars($d);
}
if (is_array($d)) {
/*
* Return array converted to object
* Using __FUNCTION__ (Magic constant)
* for recursive call
*/
return array_map(__FUNCTION__, $d);
}
else {
// Return array
return $d;
}
}
function arrayToObject($d) {
if (is_array($d)) {
/*
* Return array converted to object
* Using __FUNCTION__ (Magic constant)
* for recursive call
*/
return (object) array_map(__FUNCTION__, $d);
}
else {
// Return object
return $d;
}
}
// Create new stdClass Object
$init = new stdClass;
// Add some test data
$init->foo = "Test data";
$init->bar = new stdClass;
$init->bar->baaz = "Testing";
$init->bar->fooz = new stdClass;
$init->bar->fooz->baz = "Testing again";
$init->foox = "Just test";
// Convert array to object and then object back to array
$array = objectToArray($init);
$object = arrayToObject($array);
// Print objects and array
print_r($init);
echo "\n";
print_r($array);
echo "\n";
print_r($object);
//OUTPUT
stdClass Object
(
[foo] => Test data
[bar] => stdClass Object
(
[baaz] => Testing
[fooz] => stdClass Object
(
[baz] => Testing again
)
)
[foox] => Just test
)
Array
(
[foo] => Test data
[bar] => Array
(
[baaz] => Testing
[fooz] => Array
(
[baz] => Testing again
)
)
[foox] => Just test
)
stdClass Object
(
[foo] => Test data
[bar] => stdClass Object
(
[baaz] => Testing
[fooz] => stdClass Object
(
[baz] => Testing again
)
)
[foox] => Just test
)
Shakti Patel answered -08-26T10:29:38Z