Calling exit in a destructor will prevent the remaining shutdown routines from executing. Destructors called during the script shutdown have HTTP headers already sent. The working directory in the script shutdown phase can be different with some SAPIs e.
Attempting to throw an exception from a destructor called in the time of script termination causes a fatal error. Destructors are useful to free up resources once you are done with them, but they are also good for keeping track of your objects - you can perform any actions you want in destructors, so take advantage of them! Get over pages of hands-on PHP learning today! If this was helpful, please take a moment to tell others about Hacking with PHP by tweeting about it!
Follow me: twostraws. Another unique feature of it is that even if the script has stopped its execution with the help of an exit command, the destructor will still be called. This exit will not allow the leftover shutdown methods from quitting. This is a simple example where we are creating a basic constructor function and then destroying the same by calling the destructor function. For this example we are using two variables in the constructor; employee first name and last name and then we are destroying the object Employee just before the PHP code ends by calling the destructor.
As we saw, destructors being the exact inverse of constructors are used to destroy an object after its usage is done and not required further in the code. Thus ensuring that it cleans up unwanted resources allowing space for future resources.
This is a guide to Destructor in PHP. Here we discuss the working, advantages, and limitations of destructor in PHP along with examples. You may also look at the following articles to learn more —.
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