File Permissions...?

Can PHP alter a file's permissions?

[ahmedtheking]

I have written a CMS system (with the help of all of you who had posted replies to me! Thanks!) that adds/modifies/deletes rows (pages) within a database (site).

My next thing is to make the CMS system load up HTML or text files and edit them!

I know that using the fopen command and the write commands, the CHMOD of the file has to be writeable, but this opens up a security flaw.

Is there anyway that a PHP command could change the CHMOD of a file before it is opened to make it writable and then change it back to just read?

[mavherick]

Yes you can, you can use the chmod [ca3.php.net] function.

mavherick

[ahmedtheking]

Cool thanks!

[vincevincevince]

There is no advantage in doing this I'm afraid... anyone in a position to edit an owner-writable file also has permission to chmod it writable if it's read only anyway.

[dreamcatcher]

Just a quick note also to say that if your server has Safe Mode enabled, the chmod function may not work.

[ahmedtheking]

Ah, so are there any ways around this?