(PHP 7 >= 7.2.0)
imagegetclip — Get the clipping rectangle
$im
)imagegetclip() retrieves 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。
The function returns an indexed array with the coordinates of the clipping rectangle which has the following entries:
Example #1 imagegetclip() example
Setting and retrieving the clipping rectangle.
<?php
$im = imagecreate(100, 100);
imagesetclip($im, 10,10, 89,89);
print_r(imagegetclip($im));
以上例程会输出：
Array
(
[0] => 10
[1] => 10
[2] => 89
[3] => 89
)