Disable caching

[stidj]

Hey guys,

I am trying to disable caching on my forms but can't.

I have tried the header tricks but those do not work.

I have also used the header function in PHP and that does not work.

The error everytime is output already started by .......

Does anyone know an easy solution for this?

Thanks

[dreamcatcher]

Hi stidj, welcome to Webmaster World.

It might be a good idea to post what code you have so that we can take a look at it and see what may be causing your problems. The PHP error "output already started by blah blah, headers already sent", isn`t necessarily to do with caching.

:)

[mat_bastian]

<!-- no cache headers -->
<meta http-equiv="Pragma" content="no-cache">
<meta http-equiv="no-cache">
<meta http-equiv="Expires" content="-1">
<meta http-equiv="Cache-Control" content="no-cache">
<!-- end no cache headers -->

I use this all the time and it works well.

[stidj]

Thanks mat_bastian, it works for me too.

[dreamcatcher]

Sorry, I thought you when you said you had tried all the header tricks, you had tried that already!

Glad you got it sorted. :)

[stidj]

Unfortunately the solution seems to not work anymore. At first it seemed to now it is not. For some reason if I go back to the URL of this code it will act as if I have clicked submit even if I refresh. Keep in mind my form will remember what values were correct and fill them in, in their respective input areas.

My code is in this style

if ( $_POST['Submit'] )
{
if ( validatedok )
{
echo some error msgs
}
else
{
do other stuff
}
}

if ( not validated above then show form )
{
<HTMLFORM>
</HTMLFORM>
}