How to make PHP create a file only if it doesn't exist

[Username:]

And how can I make it so if it does already exist, it doesn't over-write information already in it?

 

Thanks

[trq]

Check for its existence, file_exists.

 

And how can I make it so if it does already exist, it doesn't over-write information already in it?

 

Switching to mode 'a' will create the file if it doesn't exist and append to it if it does. Assuming your using fopen.

[Username:]

Check for its existence, file_exists.

 

And how can I make it so if it does already exist, it doesn't over-write information already in it?

 

Switching to mode 'a' will create the file if it doesn't exist and append to it if it does. Assuming your using fopen.

Thanks!