When Does __destruct Fail to Invoke?

When __destruct Fails to Invoke

The PHP __destruct method serves as a vital mechanism for cleaning up resources before an object's termination. However, certain circumstances can prevent __destruct from being called.

Scenarios where __destruct is Not Invoked:

• Exit in Another Destructor: If another destructor function calls exit(), the interpreter prematurely exits the script, preventing the execution of subsequent destructors.
• Exit in Shutdown Function (PHP Version Dependent): In certain PHP versions, if exit() is called within a shutdown function registered using register_shutdown_function, __destruct for other objects may not be executed.
• Fatal Error: Any fatal error that abruptly terminates the script without proper shutdown procedures will bypass the execution of __destruct.
• Exception in Another Destructor: If an exception is thrown within another destructor, it can cause the execution of subsequent destructors to be skipped.
• Exception Handling in Destructor (PHP >= 5.3.0): Attempting to handle an exception within a destructor can lead to the destructors of other objects being bypassed.

Additional Considerations:

Pascal MARTIN's suggestion to review the PHP error log can provide valuable insights into any issues that may have prevented __destruct from being called.

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