php stdClass 到数组 [英] php stdClass to array

问题描述

我在将对象 stdClass 转换为数组时遇到问题.我是这样试的:

I have a problem to convert an object stdClass to array. I have tried in this way:

return (array) $booking;

或

return (array) json_decode($booking,true);

或

return (array) json_decode($booking);

转换前的数组只有一个记录，在我尝试转换后它是空的.如何在不删除其行的情况下对其进行转换/转换?

The array before the cast is full with one record, after my try to cast it is empty. How to cast / convert it without delete its rows?

转换前的数组:

array(1) {   [0]=>   object(stdClass)#23 (36) {     ["id"]=>     string(1) "2"     ["name"]=>     string(0) ""     ["code"]=>     string(5) "56/13"   } } 

如果我尝试创建一个 var_dump($booking);

我也试过这个功能，但总是空的:

I have also tried this function but always empty:

public 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;
        }
    }

推荐答案

lazy 单行方法

如果您愿意损失一点点性能，您可以使用 JSON 方法在单行中执行此操作(尽管有些人报告说它比递归遍历对象更快 - 很可能是因为 PHP 是 调用函数很慢).但我已经这样做了"你说.不完全是 - 您在数组上使用了 json_decode，但您需要对其进行编码首先使用 json_encode.

The lazy one-liner method

You can do this in a one liner using the JSON methods if you're willing to lose a tiny bit of performance (though some have reported it being faster than iterating through the objects recursively - most likely because PHP is slow at calling functions). "But I already did this" you say. Not exactly - you used json_decode on the array, but you need to encode it with json_encode first.

json_encode 和 json_decode 方法.这些在 PHP 5.2.0 及更高版本中自动捆绑.如果您使用任何旧版本，还有一个 PECL 库(也就是说，在这种情况下，您应该真的更新您的 PHP 安装.2006 年停止支持 5.1.)

The json_encode and json_decode methods. These are automatically bundled in PHP 5.2.0 and up. If you use any older version there's also a PECL library (that said, in that case you should really update your PHP installation. Support for 5.1 stopped in 2006.)

$stdClass = json_decode(json_encode($booking));

<小时>

转换array/stdClass -> array

手册将json_decode的第二个参数指定为:

---

Converting an array/stdClass -> array

The manual specifies the second argument of json_decode as:

关联
当TRUE时，返回的对象将转换为关联数组.

assoc
When TRUE, returned objects will be converted into associative arrays.

因此，以下行会将您的整个对象转换为数组:

Hence the following line will convert your entire object into an array:

$array = json_decode(json_encode($booking), true);

这篇关于php stdClass 到数组的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！