Warning: This function is
currently not documented; only the argument list is
available.
Warning: This function is
EXPERIMENTAL. The behaviour of this function, the
name of this function, and anything else documented about this
function may change without notice in a future release of PHP.
Use this function at your own risk.
Returns formats supported by Imagick.
Return Values
Returns an array containing the formats supported by Imagick, throws
ImagickException on error.