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PHP shutdown: Can't write files?

I'm using a Log class to store messages during execution, and then it is supposed to write these messages to a file on shutdown (with register_shutdown_function).

But for some reason, I'm always getting "file_put_contents failed to open stream: No such file or directory". It shouldn't be a problem that the file doesn't exist, file_put_contents should create the file. In fact, everything works just fine if I do the write during execution (ie: before the shutdown function is called).

Is this a php bug?

Solution

  • Make sure you use an absolute path. Relative paths aren't guaranteed to work in the shutdown function.