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:
Пример 1. imagetypes() example
<?php if (imagetypes() & IMG_PNG) { echo "PNG Support is enabled"; } ?>