How to get rid of echo's on page refresh

[Shadowing]

anyone know how to get rid of an echo when you hit refresh on the browser?

 

My browser is remembering the echo from with in a if statement when refresh is hit even if the if statement remains false on refresh.

[trq]

We are going to need to see code to understand your issue.

[Shadowing]

Here is a small example. if i change my email and it says "your email has been changed" If i hit refresh on the page it keeps saying it

 

 

	// change email
if(isset($_POST['change_email'])) {
	if(!checkEmail($_POST['new_email'])) {
 			echo 'Your email is not valid!';			
}else{
	if($_POST['new_email'] != $_POST['confirm_email']) { 
			echo 'Your confirm email does not match your new email';
}else{						

					// Updates your email
$update_email = "UPDATE users SET mail= '".mysql_real_escape_string($_POST['confirm_email'])."' 
WHERE id='".($_SESSION['user_id'])."'";							
mysql_query($update_email) or die(mysql_error());

	echo "Your email has been changed";
	}	
}
}

[cyberRobot]

You could set a $_SESSION variable. Then add a test for the variable before processing the change again.

[Shadowing]

Thanks for the responce cyberRobot

 

yah i use sessions for other things I display. then unset the session after displaying it. But wondering if i can wipe out this buffer or what ever that exist that causes this to happen

[PFMaBiSmAd]

This is not due to a buffer holding the output. Your code is running again every time you request the page.

 

An alternate approach is that after you have successfully completed the form processing code, you use a header() redirect to the exact same URL that the form was submitted to. This stores a GET request in the browser's history as the last action for that URL and stops the browser from resubmitting the form data every time you refresh or browse back to that same URL.

[Shadowing]

thanks for the responce PFMaBiSmAd

 

what i dont understand is how can the code run again if the button

"(isset($_POST['change_email']))"  isnt pushed. if its not pushed its not isset right? or where am I off on how i thought this worked. plus the forms are empty on every refresh. So if there is no buffer then how does the form have information if the input fields are blank on each refresh?

 

How i do my other forms i store it into a session, use a header then unset the session after its displayed. Which works fine. so i guess thats the only way to do it then. I guess i was just trying to understand why so i know exactly how its working. I need to make sure i understand this fully

 

Also If i use a header i have to use a session other wise it wont echo at all. on page refresh