php读取CSV

if(isset($_FILES["file"])){
    $handle = fopen($_FILES["file"]["tmp_name"], 'r');
    while (($data = fgetcsv($handle)) !== false) {//此时读取出的数据如果CSV文件不是UTF-8会是乱码的状态
        $data = eval('return '.mb_convert_encoding(var_export($data,true),'UTF-8','Shift-JIS').';');//编码转换，去除乱码
        echo json_encode($data);
    }
    fclose($handle);
}