image_type_to_extension
<?php
print image_type_to_mime_type(IMAGETYPE_ICO);
// returns: application/octet-stream
?>
image_type_to_mime_type
(PHP 4 >= 4.3.0, PHP 5)
image_type_to_mime_type — 取得 getimagesize，exif_read_data，exif_thumbnail，exif_imagetype 所返回的图像类型的 MIME 类型
说明
string image_type_to_mime_type
( int $imagetype
)
image_type_to_mime_type() 函数可以判断一个 IMAGETYPE 常量的 MIME 类型。
Example#1 image_type_to_mime_type (file)
<?php
header("Content-type: " . image_type_to_mime_type(IMAGETYPE_PNG));
?>
返回值如下：
| 图像类型（imagetype ） | 返回值 |
|---|---|
| IMAGETYPE_GIF | image/gif |
| IMAGETYPE_JPEG | image/jpeg |
| IMAGETYPE_PNG | image/png |
| IMAGETYPE_SWF | application/x-shockwave-flash |
| IMAGETYPE_PSD | image/psd |
| IMAGETYPE_BMP | image/bmp |
| IMAGETYPE_TIFF_II (intel byte order) | image/tiff |
| IMAGETYPE_TIFF_MM (motorola byte order) | image/tiff |
| IMAGETYPE_JPC | application/octet-stream |
| IMAGETYPE_JP2 | image/jp2 |
| IMAGETYPE_JPX | application/octet-stream |
| IMAGETYPE_JB2 | application/octet-stream |
| IMAGETYPE_SWC | application/x-shockwave-flash |
| IMAGETYPE_IFF | image/iff |
| IMAGETYPE_WBMP | image/vnd.wap.wbmp |
| IMAGETYPE_XBM | image/xbm |
Note: 本函数不需要 GD 库。
参见 getimagesize()，exif_imagetype()，exif_read_data() 和 exif_thumbnail()。
add a note
User Contributed Notesimage_type_to_mime_type
joshuamallory at yahoo dot com
05-Jun-2008 07:39
05-Jun-2008 07:39
aidan at php dot net
11-Sep-2004 04:04
11-Sep-2004 04:04
This functionality is now implemented in the PEAR package PHP_Compat.
More information about using this function without upgrading your version of PHP can be found on the below link:
http://pear.php.net/package/PHP_Compat