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(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)
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
image_type_to_mime_type() 函数将确定 IMAGETYPE 常量的 MIME 类型。
image_type
IMAGETYPE_XXX
常量之一。
返回值如下:
image_type |
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 (小端字节顺序) |
image/tiff |
IMAGETYPE_TIFF_MM (大端字节顺序)
|
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 |
IMAGETYPE_ICO |
image/vnd.microsoft.icon |
IMAGETYPE_WEBP |
image/webp |
IMAGETYPE_AVIF |
image/avif |
示例 #1 image_type_to_mime_type() 示例
<?php
header("Content-type: " . image_type_to_mime_type(IMAGETYPE_PNG));
?>
注意:
此函数不需要 GD 图象库。