note 78841 added to ref.fileinfo

Using the Unix 'file' program with the -i switch will not work reliably. Consider the following plain-text CSV file (we'll call it 'error.csv'), which has the contents: GIFT,WRAPPED,ERRORS,ON,LOOKING,At,FILES ...just that one line: nothing above it, nothing below. Now, what does asking: file -i error.csv ...give us for this file? Yes, that's right - 'error.csv: image/gif' Why? Because the first line starts 'GIF...', that's why. You cannot trust file. ---- Server IP: 194.145.210.4 Probable Submitter: 195.97.249.30 ---- Manual Page -- http://www.php.net/manual/en/ref.fileinfo.php Edit -- https://master.php.net/note/edit/78841 Del: integrated -- https://master.php.net/note/delete/78841/integrated Del: useless -- https://master.php.net/note/delete/78841/useless Del: bad code -- https://master.php.net/note/delete/78841/bad+code Del: spam -- https://master.php.net/note/delete/78841/spam Del: non-english -- https://master.php.net/note/delete/78841/non-english Del: in docs -- https://master.php.net/note/delete/78841/in+docs Del: other reasons-- https://master.php.net/note/delete/78841 Reject -- https://master.php.net/note/reject/78841 Search -- https://master.php.net/manage/user-notes.php