(PECL gmagick >= Unknown)
Gmagick::haspreviousimage — Checks if the object has a previous image
public Gmagick::haspreviousimage ( ) : mixed
Returns TRUE if the object has more images when traversing the list in the reverse direction
This function has no parameters.
Returns TRUE if the object has more images when traversing the list in the reverse direction, returns FALSE if there are none.
Throws an GmagickException on error.
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https://www.php.net/manual/en/gmagick.haspreviousimage.php