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
    ): bool

    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

    成功时返回 true， 或者在失败时返回 false。

    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

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