1) Parse error: syntax error, unexpected T_VARIABLE in D:\xampp\htdocstest2.php on line 5
Possible Reason: ";" is missing in previous line

2) mysql_select_db() [function.mysql-select-db]: Access denied for user 'ODBC'@'localhost' (using password: NO) in test.php on line 3
Possible Reasons:

1. mysql user, host OR password is wrong in mysql_connect function
2. mysql_connect function is not available in your code
   

3) Warning: mysql_query() [function.mysql-query]: Access denied for user 'ODBC'@'localhost' (using password: NO) in D:\xampp\htdocs\test2.php on line 5

Possible Reasons:

1. mysql user, host OR password info is wrong in mysql_connect function
2. mysql_connect function is not available in your code

4) Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in D:\xampp\htdocs\test2.php on line 6

Possible Reasons:

1. sql query is wrong - check your query
2. call function mysql_select_db and put your database in mysql_select_db before mysql_query
3. wrong database in mysql_select_db

5) Warning: mysql_fetch_row(): supplied argument is not a valid MySQL result resource in D:\xampp\htdocs\test2.php on line 6

Possible Reasons:

1. sql query is wrong - check your query
2. call function mysql_select_db and put your database in mysql_select_db before mysql_query
3. wrong database in mysql_select_db

6) Warning: mysql_fetch_object(): supplied argument is not a valid MySQL result resource in D:\xampp\htdocs\test2.php on line 6

Possible Reasons:

1. sql query is wrong - check your query
2. call function mysql_select_db and put your database in mysql_select_db before mysql_query
3. wrong database in mysql_select_db

7) Parse error: syntax error, unexpected $end in D:\xampp\htdocs\irfan\test2.php on line 17

Possible Reason: one of the "}" is missing. And "{" and "}" must be equal in code.

8) Parse error: syntax error, unexpected '}' in D:\xampp\htdocs\irfan\test2.php on line 12

Possible Reason: "{" is missing. OR one "}" is extra.