ConFoo 2025

image_type_to_mime_type

(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)

image_type_to_mime_typeGet Mime-Type for image-type returned by getimagesize, exif_read_data, exif_thumbnail, exif_imagetype

Опис

image_type_to_mime_type(int $image_type): string

The image_type_to_mime_type() function will determine the Mime-Type for an IMAGETYPE constant.

Параметри

image_type

One of the IMAGETYPE_* constants.

Значення, що повертаються

The returned values are as follows

Returned values Constants
image_type Returned value
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
IMAGETYPE_ICO image/vnd.microsoft.icon
IMAGETYPE_WEBP image/webp
IMAGETYPE_AVIF image/avif

Приклади

Приклад #1 image_type_to_mime_type() example

<?php
header
("Content-type: " . image_type_to_mime_type(IMAGETYPE_PNG));
?>

Примітки

Зауваження:

Ця функція не потребує бібліотеки зображень GD.

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User Contributed Notes 1 note

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13
slegersjohn at gmail dot com
10 years ago
If you are working with Images only and you need mime type (e.g. for headers), then this is a fast and reliable technique:

<?php
$file
= 'path/to/image.jpg';
$image_mime = image_type_to_mime_type(exif_imagetype($file));
?>

It will output true image mime type even if you rename your image file.
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