Can't write to /tmp with php, despite 777 permissions and no open_basedir value

Question

I\'m trying to write a file to my /tmp directory (on an apache server) with the php fopen function, but it fails:

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Answer 1

Try to add /tmp to open_basedir. For example:

    php_admin_value open_basedir /some/path:/another/path:/tmp

I'm not sure this is the problem you actually faced, but I found your question while looking for this solution so I guess that might help someone else.