Bug #75887 [Com]: mime type detection problem

Edit report at https://bugs.php.net/bug.php?id=75887&edit=1 ID: 75887 Comment by: tunderzone at gmail dot com Reported by: tunderzone at gmail dot com Summary: mime type detection problem Status: Not a bug Type: Bug Package: Filesystem function related PHP Version: 7.1.13 Block user comment: N Private report: N New Comment: the text that cause this is not on first line nor last. it is somewhere in the middle of the file. the file size is 14K. running finfo_open and finfo_file on that file in php 5.5.38 yields text/plain but in php7.1.13 yields text/x-asm something has changed from php 5 to php 7. this is why i posted this bug. Previous Comments: ------------------------------------------------------------------------ [2018-01-29 23:29:15] requinix@php.net MIME detection works by examining the first few bytes of a file (or input stream). It is not perfect. ------------------------------------------------------------------------ [2018-01-29 21:21:43] tunderzone at gmail dot com Description: ------------ having ".text" as first characters on any line of a css file will result in mime being resolved as text/x-asm. Test script: --------------- <?php $info = finfo_open(FILEINFO_MIME_TYPE); $tipe = finfo_buffer($info, '.text {color: #CCCCCC;}'); var_dump($tipe); finfo_close($info); Expected result: ---------------- text/css or text/plain Actual result: -------------- text/x-asm ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=75887&edit=1