Imagick::hasPreviousImage
(PECL imagick 2.0.0)
Imagick::hasPreviousImage — Checks if the object has a previous image
说明
Imagick::hasPreviousImage
( void
) : bool
Returns TRUE if the object has more images when traversing the list in the reverse direction
返回值
Returns TRUE if the object has more images when traversing the list in the
reverse direction, returns FALSE if there are none.