(PECL imagick 3 >= 3.3.0)
Imagick::setRegistry — Sets the ImageMagick registry entry named key to value
$key, string $value): boolSets the ImageMagick registry entry named key to value. This is most useful for setting "temporary-path" which controls where ImageMagick creates temporary images e.g. while processing PDFs.
key
value
成功时返回 true。