php实现将base64格式图片保存在指定目录的方法

<?phpheader('Content-type:text/html;charset=utf-8');$base64_image_content = $_POST['imgBase64'];//匹配出图片的格式if (preg_match('/^(data:/s*image//(/w+);base64,)/', $base64_image_content, $result)){$type = $result[2];$new_file = "upload/active/img/".date('Ymd',time())."/";if(!file_exists($new_file)){//检查是否有该文件夹，如果没有就创建，并给予最高权限mkdir($new_file, 0700);}$new_file = $new_file.time().".{$type}";if (file_put_contents($new_file, base64_decode(str_replace($result[1], '', $base64_image_content)))){echo '新文件保存成功：', $new_file;}else{echo '新文件保存失败';}}?>