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Return the image types supported by this PHP build (PHP 4 >= 4.0.2, PHP 5)
int imagetypes ( )

Returns the image types supported by the current PHP installation.

Return Values

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.


Example 1027. Checking for PNG support

if (imagetypes() & IMG_PNG) {
"PNG Support is enabled";