How to Avoid the 'Creating Default Object from Empty Value' Error in PHP?

Assigning an Undefined Object Property: Resolving the "Creating Default Object from Empty Value" Error in PHP

In PHP versions 5.4 and above, assigning a property to an undefined object raises the warning "Creating default object from empty value." This error can occur when working with objects that are initialized to NULL or have not yet been defined.

To resolve this issue, you can either manually create the object or utilize a default object known as stdClass, which is available in the global namespace.

Consider the following code:

$res->success = false;

Here, $res is assumed to be an object, but it is undefined. In this scenario, PHP will create a new stdClass object and assign the property success to it, which can result in the aforementioned warning.

To avoid this, you can explicitly declare $res as a stdClass object before assigning any properties:

$res = new \stdClass();
$res->success = false;

Alternatively, you can check for the existence of $res before assigning properties:

if ($res !== null) {
  $res->success = false;
} else {
  // Handle the null case
}

By adhering to these practices, you can resolve the "Creating default object from empty value" warning and improve the reliability of your PHP code.

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