What are common reasons for the error "Trying to get property of non-object" in PHP scripts?

The error "Trying to get property of non-object" typically occurs when trying to access a property of a variable that is not an object. This can happen if the variable is not initialized as an object or if the object does not exist. To solve this issue, make sure to properly initialize the variable as an object before trying to access its properties.

// Initialize the variable as an object
$object = new stdClass();

// Access the property of the object
$property_value = $object->property_name;