variables - How to use zval in PHP? -

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Can you tell me any practical example how to use the zval container? The only related function that I know is debug_zval_dump , but I have never really used it.

Edit:

I think, to monitor Zalve containers, I could see how to optimize the code, how the memory is used from references. It seems that this may be a useful tool in some cases. Certainly there are some good reasons that exist for the debug_val_dump function.

Each PHP variable is stored in zval so you can see That your question really does not understand.

debug_val_dump is not a very well-thought-out function because it is difficult to interpret, because by passing a variable in the function you are changing the reference number of the zwal. If you pass the context of debug_val_dump without passing it by reference, you will force a zig-isolation and you will always get a zvill back with reference number 1 with reference flag, and if you reference it from context Pass (which should be done at call time, which is disliked), you can not tell, only by output, if it was originally a reference or not I

Xdebug has a more useful function where you do not have a variable, you pass its name in its string. It is called.

Unless you are using a debugging code, which uses context and you want to know how many variables are related to the reference set, these tasks are probably not very useful for you.

To understand any of them, I advise you to read the manual.


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