在php中读取csv文件时获取特殊字符

Question

I have a space separated csv file. I am trying to read using following method:

$file = fopen('/var/www/html/my.csv', 'r');
    while (($line = fgetcsv($file,0,"\t")) !== FALSE) {
      $header_count = 0;
      // $final_data = array();
      if ( $count == 0 )
      {
        foreach ($line as $data) {          
            $header[$header_count] = $data;
            $header_count++;
        }
      }
      else
      {
            // print_r($line);
        foreach ($line as $data) {          
            $final_data[$count-1][$header[$header_count]] = $data;
            $header_count++;
        }

      }
      $count++;
    }

The file looks like:

id  created ad
410699345585    11:12:29+05:30  ag:6061734588280
...

But, the reading output gives:

 ["��id"]=>

as id index. What am I doing wrong?