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# imagetypes

(PHP 3 CVS only, PHP 4 >= 4.0.2, PHP 5)

imagetypes -- Return the image types supported by this PHP build

## Description

int imagetypes ( void )

This function returns a bit-field corresponding to the image formats supported by the version of GD linked into PHP. The following bits are returned, `IMG_GIF` | `IMG_JPG` | `IMG_PNG` | `IMG_WBMP` | `IMG_XPM`. To check for PNG support, for example, do this:

示範 1.imagetypes() example

`<?php if (imagetypes() & IMG_PNG) { echo "PNG Support is enabled"; } ?>`

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