PHP 7 >= 7.2.0, PHP 8
imageopenpolygon - Draws an open polygon
Code Examples

imageopenpolygon( GdImage$image, array$points, int$color ): bool

Alternative signature (deprecated as of PHP 8.1.0)

boolimageopenpolygon GdImageimage arraypoints intnum_points intcolor



A GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor.


An array containing the polygon's vertices, e.g.:

points[0] = x0
points[1] = y0
points[2] = x1
points[3] = y1


Total number of points (vertices), which must be at least 3.

If this parameter is omitted as per the second signature, points must have an even number of elements, and num_points is assumed to be count($points)/2.


A color identifier created with imagecolorallocate.

Return Values

Returns true on success or false on failure.


Version Description
8.1.0 The parameter num_points has been deprecated.
8.0.0 image expects a GdImage instance now; previously, a resource was expected.

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Function imageopenpolygon:

Image Processing and GD Functions

Most used PHP functions