ImageSetStyle() sets the style to be used by all line drawing functions (such as ImageLine() and ImagePolygon()) when drawing with the special color IMG_COLOR_STYLED or lines of images with color IMG_COLOR_STYLEDBRUSHED.
The style parameter is an array of pixels. Following example script draws a dashed line from upper left to lower right corner of the canvas:
Example 1. ImageSetStyle
See also ImageSetBrush(), ImageLine().
Note: This function was added in PHP 4.0.6