Is php only 64-bit?

php is not only 64-bit, but also 32-bit. The biggest difference between the two is the size of the process address space; the process address space of a 32-bit program is 4G, while a 32-bit program under Windows has 2G The address space belongs to the kernel, and the program actually only has 2G of available memory.

The operating environment of this tutorial: Windows 7 system, PHP version 8.1, Dell G3 computer.

Is php only 64-bit?

no.

PHP has 32-bit and 64-bit versions. The biggest difference between the two is the size of the process's address space. The process address space of a 32-bit program is 4G, while the 32-bit program under Windows has a 2G address space in the kernel, and the program actually only has 2G of available memory.

Check whether the PHP version is 32-bit or 64-bit:

Two methods, one is to check the process in the server's process manager. If it is a 64-bit operating system, the 32-bit process will be preceded by *32 is displayed. The general PHP process will die quickly. You can write a small PHP script that waits for input content to be executed, so that the process is maintained and can be viewed.

The second method is to write a script containing phpinfo() and view it on the browser.

Recommended learning: "PHP Video Tutorial"

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