写出下面PHP代码运行的输出结果____。$arr1 = array("img12.png", "img10.png", "img2.png", "img1.png");usort($arr1, "strnatcmp");echo $arr1[2];
写出下面PHP代码运行的输出结果____。$arr1 = array("img12.png", "img10.png", "img2.png", "img1.png");usort($arr1, "strnatcmp");echo $arr1[2];
1