I'm just starting with PHP, and I've been browsing the whole manual to find how to solve the following problem:

1. An integer number is internally represented in 4 bytes. Say, for instance, number 65 is represented by 0x00000041, that is the string "\0\0\0\0x41", and not the string "65".
2. How can I write this representation into a file and then read back it from the file?


Do you have any idea about this?

Thank you,


Sergio.

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