(PECL gmagick >= Unknown)
Gmagick::getimageheight — Returns the image height
Returns the image height
锟剿猴拷锟斤拷没锟叫诧拷锟斤拷锟斤拷
Returns the image height in pixels.
锟斤拷锟斤拷时锟阶筹拷 GmagickException锟斤拷