iOS multiple image upload interface, help?

My multi-image upload test on the web side is correct. I can upload images and enter them into the database. However, it does not work on iOS. I can only upload one image and it will overwrite other images. What is the reason for this? Please help. Urgent! Urgent! ! ! ! ! ! ! !

Model layer

public function up(){

<code>    if($_FILES['upload']['error'][0]==0){
        //调用文件上传的方法
        $info = $this ->upload();
        foreach($info as $info_v){</code>

//Intercept the file extension name to determine what type of file it is

<code>            $suffix = substr(strrchr($info_v['upload'],'.'),1);</code>

// Determine whether the file classification is given

// Determine file type

// Pictures

<code>                if($suffix=='jpg'||$suffix=='gif'||$suffix=='png'||$suffix=='jpeg'){
                    $type=1;
                }else</code>

//Video

<code>                if($suffix=='mp4'){
                    $type=2;
                }else</code>

// Music

<code>                if($suffix=='mp3'){
                    $type=4;
                }else{
                    $type=3;
                }
            </code>

//Add uploaded files to database

<code>            $id = $this->add(array('user_id'=>1,'upload_url'=>$info_v['upload'],'c_time'=>NOW_TIME,'size'=>$info_v['size'],'type'=>$type));
        }
        if($id){
            return $id;
        }else{
            return '上传失败';
        }
    }
}
</code>

//Upload method

<code>protected function upload(){</code>

// $files = $_FILES['upload'];

<code>    $upload = new \Think\Upload();// 实例化上传类
    //C方法是用来读取配置信息
    $upload->maxSize   =     C('maxSize') ;// 设置附件上传大小
    $upload->exts      =     C('exts');// 设置附件上传类型
    $upload->savePath  =     C('savePath'); // 设置附件上传目录
    $upload->saveName  =     C('saveName'); //  设置上传文件的保存规则
    $upload->rootPath  =     C('rootPath');
    // 上传文件
    $info   =   $upload->upload();
    //         print_r($info);die;
    $img_arr=array();
    if(!$info) {
        // 上传错误提示错误信息
        return $upload->getError();
    }else{
        foreach ($info as $k=>$v){
            //拼接文件存储路径
            $img_url = C('img_path').$v['savepath'].$v['savename'];
            $img_arr[$k]['upload']= $img_url;
            $img_arr[$k]['size']= $v['size'];
        }
        return $img_arr;
    }
}
</code>

Controller layer
//Upload files

<code>public function index(){
    if(IS_POST){
    //     调用模型层的方法
        $id = $this->upload->up();
        if(is_numeric($id)){
            $data = array(
                    'success'=>true,
                    'message'=>'上传成功',
                    'data'=>'',
            );
            echo json_encode($data);
        }
    }
}</code>

Reply content:

My multi-image upload test on the web side is correct. I can upload images and enter them into the database. However, it does not work on iOS. I can only upload one image and it will overwrite other images. What is the reason for this? Please help. Urgent! Urgent! ! ! ! ! ! ! !

Model layer

public function up(){

<code>    if($_FILES['upload']['error'][0]==0){
        //调用文件上传的方法
        $info = $this ->upload();
        foreach($info as $info_v){</code>

// Intercept the file suffix name to determine what type of file it is

<code>            $suffix = substr(strrchr($info_v['upload'],'.'),1);</code>

// Determine whether the file classification is given

// Determine file type

// Pictures

<code>                if($suffix=='jpg'||$suffix=='gif'||$suffix=='png'||$suffix=='jpeg'){
                    $type=1;
                }else</code>

//Video

<code>                if($suffix=='mp4'){
                    $type=2;
                }else</code>

// Music

<code>                if($suffix=='mp3'){
                    $type=4;
                }else{
                    $type=3;
                }
            </code>

//Add uploaded files to database

<code>            $id = $this->add(array('user_id'=>1,'upload_url'=>$info_v['upload'],'c_time'=>NOW_TIME,'size'=>$info_v['size'],'type'=>$type));
        }
        if($id){
            return $id;
        }else{
            return '上传失败';
        }
    }
}
</code>

//Upload method

<code>protected function upload(){</code>

// $files = $_FILES['upload'];

<code>    $upload = new \Think\Upload();// 实例化上传类
    //C方法是用来读取配置信息
    $upload->maxSize   =     C('maxSize') ;// 设置附件上传大小
    $upload->exts      =     C('exts');// 设置附件上传类型
    $upload->savePath  =     C('savePath'); // 设置附件上传目录
    $upload->saveName  =     C('saveName'); //  设置上传文件的保存规则
    $upload->rootPath  =     C('rootPath');
    // 上传文件
    $info   =   $upload->upload();
    //         print_r($info);die;
    $img_arr=array();
    if(!$info) {
        // 上传错误提示错误信息
        return $upload->getError();
    }else{
        foreach ($info as $k=>$v){
            //拼接文件存储路径
            $img_url = C('img_path').$v['savepath'].$v['savename'];
            $img_arr[$k]['upload']= $img_url;
            $img_arr[$k]['size']= $v['size'];
        }
        return $img_arr;
    }
}
</code>

Controller layer
//Upload files

<code>public function index(){
    if(IS_POST){
    //     调用模型层的方法
        $id = $this->upload->up();
        if(is_numeric($id)){
            $data = array(
                    'success'=>true,
                    'message'=>'上传成功',
                    'data'=>'',
            );
            echo json_encode($data);
        }
    }
}</code>

When ios uses your interface, does it request multiple images at once? Or upload multiple pictures multiple times!