PHP - Manual: imagesetclip
2025-10-24
(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 GdImage 对象。
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.
官方地址:https://www.php.net/manual/en/function.imagesetclip.php