Hi,

I have the need to run some code in PHP 5.6.40, latest version of 5.6. I have downloaded and installed the NTS X64 version of PHP and it is running fine.

However, if I execute PHP_INT_SIZE I get a value of 4 and not a value of 8, which tells me that I am running 32bit!

If I execute the same code under 7.4 or 8, I get 8, or 64bit.

Can someone please explain why I am getting PHP_INT_SIZE to report 4, when I have installed the x64 version of PHP 5.6.40?

Thanks,
Adri

Not it does not mean you're running 32bit version of php. It means you're running php that has 32bit integer values. Both 32 and 64bit versions of php 5.6 for Windows report their INTs are 32bit. Under Linux they report 32bit and 64bit respectively.
And you're correct, in 64bit php-7.x for Windows, INT size is 64bit -- This constant is defined differently in this version and unline php-5.x it does not depend on size of long anymore.

Thank you dmitri, yes, I now understand what is going on! Cheers, Adri