如何修复 PHP Strict 错误“从空值创建默认对象”？
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How do I fix the PHP Strict error "Creating default object from empty value"?
提问by Jake
I have the following PHP5 code:
我有以下 PHP5 代码：
$request = NULL;
$request->{"header"}->{"sessionid"} = $_SESSION['testSession'];
$request->{"header"}->{"type"} = "request";
Lines 2 and 3 are producing the following error:
第 2 行和第 3 行产生以下错误：
PHP Strict standards: Creating default object from empty value
PHP 严格标准：从空值创建默认对象
How can I fix this error?
我该如何解决这个错误？
回答by Yacoby
Null isn't an object, so you can't assign values to it. From what you are doing it looks like you need an associative array. If you are dead set on using objects, you could use the stdClass
Null 不是一个对象，所以你不能给它赋值。从你在做什么看起来你需要一个关联数组。如果您对使用对象死心塌地，则可以使用stdClass
//using arrays
$request = array();
$request["header"]["sessionid"] = $_SESSION['testSession'];
$request["header"]["type"] = "request";
//using stdClass
$request = new stdClass();
$request->header = new stdClass();
$request->header->sessionid = $_SESSION['testSession'];
$request->header->type = "request";
I would recommend using arrays, as it is a neater syntax with (probably) the same underlying implementation.
我建议使用数组，因为它是一种更简洁的语法（可能）具有相同的底层实现。
回答by Brad
Get rid of $request = NULL and replace with:
去掉 $request = NULL 并替换为：
$request = new stdClass;
$request->header = new stdClass;
You are trying to write to NULL instead of an actual object.
您正在尝试写入 NULL 而不是实际对象。
回答by Richard Quinn
To suppress the error:
要抑制错误：
error_reporting(0);
To fix the error:
要修复错误：
$request = new stdClass();
hth
第
回答by Amber
Don't try to set attributes on a null value? Use an associative array instead.
不要尝试在空值上设置属性？请改用关联数组。
