destroy session data if Null value given as value.
destroy session data if Null value given as value.
qs9816/doophp,phpzxh/doophp,google-code-export/doophp,drupalik/doophp,qs9816/doophp,google-code-export/doophp,phpzxh/doophp,qs9816/doophp,drupalik/doophp,phpzxh/doophp,google-code-export/doophp,drupalik/doophp