Usage and examples of PHP image_type_to_extension() function

PHP Image Processing

image_type_to_extension — Returns the corresponding file extension based on the specified image type.

Syntax

string image_type_to_extension ( int $imagetype [, bool $include_dot = TRUE ] )

Returns the file extension based on the given constant IMAGETYPE_XXX.

Example

<?php
//　Create image example
$im　=　imagecreatetruecolor(100,　100);
//　Save image in png format
imagepng($im,　'./test'　.　image_type_to_extension(IMAGETYPE_PNG));
imagedestroy($im);
?>

Executing the above file will generate a test.png image in the current directory.

PHP Image Processing