Bug #59913 [Fbk->NoF]: different results from finfo_file and finfo_buffer

Edit report at https://bugs.php.net/bug.php?id=59913&edit=1 ID: 59913 Updated by: php-bugs@lists.php.net Reported by: di_herbert dot huber at yahoo dot com Summary: different results from finfo_file and finfo_buffer -Status: Feedback +Status: No Feedback Type: Bug Package: *General Issues Operating System: WinXP HE2002 SP2 PHP Version: 5.3.5 Private report: N New Comment: No feedback was provided. The bug is being suspended because we assume that you are no longer experiencing the problem. If this is not the case and you are able to provide the information that was requested earlier, please do so and change the status of the bug back to "Re-Opened". Thank you. Previous Comments: ------------------------------------------------------------------------ [2016-11-24 14:55:52] ab@php.net Long ago, still the exact file would be needed, to reproduce and fix the bug. Thanks. ------------------------------------------------------------------------ [2011-08-28 11:23:16] di_herbert dot huber at yahoo dot com Description: ------------ different results from finfo_file and finfo_buffer Scenario: 1. MS Excel-File stored in mySQL database LONGBLOB-Column 2. This binary data selected from database 3. This binary data stored to tempfile 4. mime-type sniffing done by finfo_buffer on binary data > result: application/octet-stream 5. mime-type sniffing done by finfo_file on tempfile > result: application/vnd.ms-excel PROBLEM: different result, dependent on used Fileinfo Function Comment: The tempfile has NO extension like ".xls" that could be used as hint for mimetype-sniffing Reproduce code: --------------- <?PHP ... $tempFileName = tempnam(sys_get_temp_dir(), "tempfile"); $tempFileHandle = fopen($tempFileName, "w"); fwrite($tempFileHandle, $attrib); fclose($tempFileHandle); // ensure that "extension=php_fileinfo.dll" is enabled in php.ini $finfo = finfo_open(FILEINFO_MIME_TYPE); // return mime type ala mimetype extension $fileContentsTypeBuf = finfo_buffer($finfo, $attrib, FILEINFO_MIME_TYPE); $fileContentsType = finfo_file($finfo, $tempFileName); finfo_close($finfo); ... Expected result: ---------------- same result "application/vnd.ms-excel", independent from used Fileinfo Function (finfo_buffer or finfo_file) Actual result: -------------- different results "application/octet-stream" for finfo_buffer "application/vnd.ms-excel" for finfo_file ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=59913&edit=1