[drupal-devel] OT: Binary data.

[Karoly Negyesi]

> fgets and fread are binary safe as I know. But there is no function to
> calculate the binary size of the data. You have to do this manually.

From the User Contributed Notes on fwrite:

note that fwrite() is binary-safe with strings only - you cannot write 
binary data with it (ie 32-bit integers, 1 (d)word etc)
Trying to fwrite() an int will cause the int to be converted into string and 
then written as string.