The image_type_to_mime_type() function is an inbuilt function in PHP which is used to get the MimeType for an imagetype returned by other different functions like getimagesize(), exif_read_data(), exif_thumbnail(), exif_imagetype() etc.
The MIME stands for Multi-purpose Internet Mail Extensions. MIME types form is a standard way of classifying file types on the Internet. Internet programs such as Web servers and browsers all have a list of MIME types, so that they can transfer files of the same type in the same way, no matter what operating system they are working.
Syntax:
string image_type_to_mime_type( int $imagetype )
Parameters: This function accepts single parameter $imagetype which holds an integer value of IMAGETYPE_XXX constants such as IMAGETYPE_GIF, IMAGETYPE_JPEG, IMAGETYPE_PNG etc.
Return values: This function returns a string of Mime Type for the given IMAGETYPE constant.
Below is an exhaustive list of all return values.
| imagetype | Return 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 |
Below programs illustrate the image_type_to_mime_type() function in PHP:
Program 1:
<?php echo image_type_to_mime_type(IMAGETYPE_PNG); ?> |
Output:
image/png
Program 2:
<?php echo image_type_to_mime_type(IMAGETYPE_JPEG); ?> |
Output:
image/jpeg
Reference: https://www.php.net/manual/en/function.image-type-to-mime-type.php
