Base64图片上传

多图上传

/**
 * base64 多图上传
 */

function base64_all_image_upload($all_image_str){

    $img_str_array = explode('|', $all_image_str);
    if($img_str_array){

        $url = '';
        foreach($img_str_array as $v){
            $base64_img = trim($v);
            //$base64_img = "data:image/jpeg;base64," . $base64_img;
            //创建文件夹
            $up_dir = 'uploads/image/'.date('Y-m-d');
            //看文件夹 有没有权限
            if(!is_dir($up_dir)){
                mkdir($up_dir,0777,true);
            }
            //查看base64 是不是符合要求
            if(preg_match('/^(data:\s*image\/(\w+);base64,)/', $base64_img, $result)){
                $type = $result[2];
                if(in_array($type,array('pjpeg','jpeg','jpg','gif','bmp','png'))){

                    if($type=='jpeg'){
                        $type='jpg';
                    }
                    //文件名
                    $image_name=date('His').str_pad(mt_rand(1, 99999), 5, '0', STR_PAD_LEFT).".".$type;

                    //图片文件路径
                    $new_file = $up_dir.'/'.$image_name;

                    $base64_1 = str_replace($result[1],'', $base64_img);

                    //将解码的数据 写入到文件中
                    if(file_put_contents($new_file, base64_decode($base64_1))){
                        $pic = '/'.$new_file;
                        $url = $pic.'|'.$url;
                    }else{
                        $data['code'] = 2;
                        $data['data'] = '上传失败';
                        return $data;
                    }

                }else{
                    $data['code'] = 3;
                    $data['data'] = '上传失败';
                    return $data;
                }
            }else{
                $data['code'] = 4;
                $data['data'] = '上传失败';
                return $data;
            }
        }
        if($url){
            //去掉字符串最后的|
            $url = rtrim($url,'|');
            $data['code'] = 1;
            $data['data'] = $url;
            return $data;  //返回用逗号隔开的上传后的图片路径
        }
    }else{
        $data['code'] = 5;
        $data['data'] = '参数错误';
        return $data;
    }

}

单图上传

/**
 * base64 单图上传
 */

function base64_image_upload($data_string){

    $base64_img = trim($data_string);
    //$base64_img = "data:image/jpeg;base64," . $base64_img;
    //创建文件夹
    $up_dir = 'uploads/image/'.date('Y-m-d');
    //看文件夹 有没有权限
    if(!is_dir($up_dir)){
        mkdir($up_dir,0777,true);
    }
    //查看base64 是不是符合要求
    if(preg_match('/^(data:\s*image\/(\w+);base64,)/', $base64_img, $result)){
        $type = $result[2];
        if(in_array($type,array('pjpeg','jpeg','jpg','gif','bmp','png'))){

            if($type=='jpeg'){
                $type='jpg';
            }
            //文件名
            $image_name=date('His').str_pad(mt_rand(1, 99999), 5, '0', STR_PAD_LEFT).".".$type;

            //图片文件路径
            $new_file = $up_dir.'/'.$image_name;

            $base64_1 = str_replace($result[1],'', $base64_img);

            //将解码的数据 写入到文件中
            if(file_put_contents($new_file, base64_decode($base64_1))){
                $url = '/'.$new_file;
                $data['code'] = 1;
                $data['data'] = $url;
                return $data;
            }else{
                $data['code'] = 2;
                $data['data'] = '上传失败';
                return $data;
            }

        }else{
            $data['code'] = 3;
            $data['data'] = '上传失败';
            return $data;
        }
    }else{
        $data['code'] = 4;
        $data['data'] = '上传失败';
        return $data;
    }
}

iOS代码

-(void)base64Image{
    
    NSString *path = [[NSBundle mainBundle] pathForResource:@"ll.png" ofType:nil];
    UIImage *savedImage = [[UIImage alloc] initWithContentsOfFile:path];
    NSData *data =UIImageJPEGRepresentation(savedImage, 1.0);
    NSString *encodedImgStr = [data base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];
    
//    NSString *path1 = [[NSBundle mainBundle] pathForResource:@"aa.jpg" ofType:nil];
//    UIImage *savedImage1 = [[UIImage alloc] initWithContentsOfFile:path1];
//    NSData *data1 =UIImageJPEGRepresentation(savedImage1, 1.0);
//    NSString *encodedImgStr1 = [data1 base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];
    
    
    NSString *data_url = [NSString stringWithFormat:@"%@",encodedImgStr];
    NSLog(@"++++----%@",data_url);
    NSMutableDictionary *dic = [[NSMutableDictionary alloc] initWithCapacity:10];
    [dic setObject:data_url forKey:@"imageString"];
    
    [ZHRequestTools HTTPPostWithUrl:@"/Api/v1/index/test" Parames:dic commplete:^(id result, NSInteger StatusCode) {
        
        NSLog(@"result===%@",result);
    } failure:^(NSError *error, NSInteger errorCode) {
        NSLog(@"error====%@",error);
    }];
    
}

总结

1、前端将图片转换成base64 是这种格式的data:image/jpeg;base64,asaskjxibasjh(base64字符串)
2、iOS 将图片转换base64 没有 data:image/jpeg;base64, 要额外获取文件的mime 拼接上