PHP实现CSV文件逐列读取与上传操作

    if(is_uploaded_file($_FILES['upload']['tmp_name'])){
        
        $tmp_name=$_FILES['upload']["tmp_name"];//上传文件的临时存放路径
        $upload_name=date('Ymd').rand(100000,999999).'.csv';//文件名称
        $url='D:'.$upload_name;//想要存放文件的位置
        $b=move_uploaded_file($tmp_name,$url);//转移文件位置
          
//读取csv格式文件
        $row = 1;
        if (($handle = fopen($url, "r")) !== FALSE) {
            
            while (($data = fgetcsv($handle, 10000000, "\t")) !== FALSE) {//循环行数
                $num = count($data);
                echo "<p> $num fields in line $row: <br /></p>\n";
                $row++;
                
                
                //print_o($data);//查看表头
                
                
                //$c取第几列，$num总列数
                for ($c=0; $c < $num; $c++) {
                    echo $data[$c]. "<br />\n";
                }
                
                
            }
            fclose($handle);
        }