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imagesetclip

(PHP 7 >= 7.2.0, PHP 8)

imagesetclip — Set the clipping rectangle

说明

imagesetclip(
    GdImage $image,
    int $x1,
    int $y1,
    int $x2,
    int $y2
): true

imagesetclip() sets the current clipping rectangle, i.e. the area beyond which no pixels will be drawn.

参数

image

由图象创建函数(例如imagecreatetruecolor())返回的 GdImage 对象。

x1

The x-coordinate of the upper left corner.

y1

The y-coordinate of the upper left corner.

x2

The x-coordinate of the lower right corner.

y2

The y-coordinate of the lower right corner.

返回值

总是返回 true。

更新日志

版本 说明
8.0.0 image 现在需要 GdImage 实例；之前需要有效的 gd resource。

参见