PHP image_type_to_extension - Get Image Extension

PHP 图像处理PHP Image Processing

image_type_to_extension — Returns the file extension for the given image type.

Syntax

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

Returns the extension based on the given constant IMAGETYPE_XXX.

Example

<?php
// 创建图像实例
$im = imagecreatetruecolor(100, 100);

// 保存图像 png 格式
imagepng($im, './test' . image_type_to_extension(IMAGETYPE_PNG));
imagedestroy($im);
?>

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

PHP 图像处理PHP Image Processing

Other Extensions