|
Server : Apache System : Linux iZ6xhqomji47p1Z 5.10.134-15.al8.x86_64 #1 SMP Thu Jul 20 00:44:04 CST 2023 x86_64 User : www ( 1000) PHP Version : 8.1.30 Disable Function : passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv Directory : /www/server/phpmyadmin/phpmyadmin_486e8b12e74b7a87/libraries/classes/ |
<?php
/**
* MIME detection code.
*
* @todo Maybe we could try to use fileinfo module if loaded
*/
declare(strict_types=1);
namespace PhpMyAdmin;
use function chr;
use function mb_strlen;
use function mb_substr;
use function substr;
/**
* PhpMyAdmin\Mime class;
*/
class Mime
{
/**
* Tries to detect MIME type of content.
*
* @param string $test First few bytes of content to use for detection
*
* @return string
*/
public static function detect(&$test)
{
$len = mb_strlen($test);
if ($len >= 2 && $test[0] == chr(0xff) && $test[1] == chr(0xd8)) {
return 'image/jpeg';
}
if ($len >= 3 && substr($test, 0, 3) === 'GIF') {
return 'image/gif';
}
if ($len >= 4 && mb_substr($test, 0, 4) == "\x89PNG") {
return 'image/png';
}
return 'application/octet-stream';
}
}