(PHP 5 >= 5.2.0, PHP 7, PHP 8)
image_type_to_extension — Get file extension for image type
Returns the extension for the given IMAGETYPE_XXX
constant.
image_type
One of the IMAGETYPE_XXX constant.
include_dot
Whether to prepend a dot to the extension or not. Default to true.
A string with the extension corresponding to the given image type, or false on failure.
Example #1 image_type_to_extension() example
<?php
// Create image instance
$im = imagecreatetruecolor(100, 100);
// Save image
imagepng($im, './test' . image_type_to_extension(IMAGETYPE_PNG));
imagedestroy($im);
?>Note:
This function does not require the GD image library.