is_writable Tells whether the filename is writable &reftitle.description; boolis_writable stringfilename Returns &true; if the filename exists and is writable. The filename argument may be a directory name allowing you to check if a directory is writable. Keep in mind that PHP may be accessing the file as the user id that the web server runs as (often 'nobody'). Safe mode limitations are not taken into account. &reftitle.parameters; filename The filename being checked. &reftitle.returnvalues; Returns &true; if the filename exists and is writable. &reftitle.examples; ]]> &reftitle.errors; &fs.emits.warning.on.failure; &reftitle.notes; ¬e.clearstatcache; &tip.fopen-wrapper.stat; &reftitle.seealso; is_readable file_exists fwrite