if you having a lot html strings,you may want to
have only plain text removing all html tags.you
can do it using REGEX

there are many ways to do that.one of them is as
follows -

You need to check if the value of the checkbox is
set or not by isset function of php.

if you want to resize your asp.net textbox height according
to content then these codes will help you perfectly.

Ajax is the best technique for showing & updating
data without page refresh.
jquery ajax make things possible easier way.in this
post i will show how to pass data via jquery ajax
and get back data.

there are different kind of joins available by sql like
inner join,left join,etc.by the following example i will show
how to do left join which i used in my application to
get data from two tables -