Conversion to arabic text in SQL and PHP

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SQL-Server

PHP

Guidance required in this issue.
Kindly Help.

In my web application i have a page in which i write the names of the employees in arabic and have to insert them in the sql-server 2005 database table. When i show the query during runtime it shows the exact arabic names but when i check the database it is inputted with garbage value.

Now i tried otherwise. I inserted the values in the record manually and tried to retrieve them in the page but it is showing only question marks like ?????? ???? ?????.
Either way i.e from page to database or database to page i get the garbage value.

Any guidance would be highly appreciable..
Waiting for response..