(PECL imagick 2, PECL imagick 3)
Imagick::hasNextImage — Checks if the object has more images
public Imagick::hasNextImage ( ) : bool
Returns true if the object has more images when traversing the list in the forward direction.
Returns true if the object has more images when traversing the list in the forward direction, returns false if there are none.
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https://www.php.net/manual/en/imagick.hasnextimage.php