復制代碼 代碼如下:

extension=php_fileinfo.dll

復制代碼 代碼如下:

extension=fileinfo.so
#如不能正常工作，再加上下面這條
#mime_magic.magicfile=/usr/share/file/magic

復制代碼 代碼如下:

function getFileMimeType($file) {
$buffer = file_get_contents($file);
$finfo = new finfo(FILEINFO_MIME_TYPE);
return $finfo->buffer($buffer);
}
$mime_type = getFileMimeType($file);
switch($mime_type) {
case "image/jpeg":
// your actions go here...
}

復制代碼 代碼如下:

// 假設file input 域的name 屬性為myfile
$tempFile = $_FILES['myFile']['tmp_name']; // path of the temp file created by PHP during upload
$imginfo_array = getimagesize($tempFile); // returns a false if not a valid image file
if ($imginfo_array !== false) {
$mime_type = $imginfo_array['mime'];
switch($mime_type) {
case "image/jpeg":
// your actions go here...
}
}
else {
echo "This is not a valid image file";
}