错误描述:imagecreatefromjpeg返回bool(false)imagecreatefromjpeg():xxx.jpg is not a valid JPEG fileimagecreatefromjpeg(): gd-jpeg: JPEG library reports unrecoverable errorPHP载入图像的函数:imagecreatefromgif()imagecreatefromjpeg()imagecreatefrompng()imagecreatefromwbmp()imagecreatefromstring()作用:由文件或URL或字符串中的图像流创建一个新图象,成功后返回图象资源,失败后返回FALSE。PS:简单的理解其作用就是将要进行分割的图片临时读到内存里面...