(PHP 7 >= 7.2.0, PHP 8)
imagesetclip — Set the clipping rectangle
imagesetclip() sets the current clipping rectangle, i.e. the area beyond which no pixels will be drawn.
image由图象创建函数(例如imagecreatetruecolor())返回的图象资源。
x1The x-coordinate of the upper left corner.
y1The y-coordinate of the upper left corner.
x2The x-coordinate of the lower right corner.
y2The y-coordinate of the lower right corner.
成功时返回 true， 或者在失败时返回 false。
| 版本 | 说明 |
|---|---|
| 8.0.0 |
image expects a GdImage
instance now; previously, a resource was expected.
|