note 58656 added to function.fopen

Just to mention today I read in a book I won't say here, it is absolutly essential to call is_readable or is_writeable first when fopen'ing files to pre-react on errors. I think this approach is quite good but its not safe in my mind to say that a file is_readable or is_writable even when they return true, there can be a short period between the calls where something can happen so I think it is better to do it this way <?PHP $path = "./bla.txt"; if( ($fp = fopen($path, "mode") != false) { // further file operations } ?> to be on the safe side. Or can someone tell me that is_readable or is_writable guarantees that fopen with appropriate mode will return true?? ---- Manual Page -- http://www.php.net/manual/en/function.fopen.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+58656 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+58656&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+58656&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+58656&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+58656&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+58656&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+58656&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+58656&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+58656&report=yes Search -- http://master.php.net/manage/user-notes.php