split() and =& expression deprecated

```
Solution
1. change split() to explode()
2. change =& to = only
```

Original issue reported on code.google.com by `anugrah....@gmail.com` on 12 Jan 2015 at 7:26

Attachments:
- [excel_reader2.php](https://storage.googleapis.com/google-code-attachments/php-excel-reader/issue-199/comment-0/excel_reader2.php)
