tp5 saves network pictures (picture url) to local

$url = "XXXXXXXXXX";//图片url
$file = file_get_contents($url);
$img_arr = explode('.', $url);
$type = $img_arr[count($img_arr)-1];// 图片后缀
// 写入保存图片，指定位位和文件名
file_put_contents('./public/uploads/pro_image' . $v['id'] . '.' . $type, $file);