header("Location: booknow.php? error=$error"); what????

[deansaddigh]

what does this part do

error=

i understand the variable $error because that holds a string.

But what does the error= do?

 

 

Thanks in advance

[RaythMistwalker]

it returns a value like if you went to page booknow.php?error=$error then it would display the error message for what error=.

 

Example:

 

viewprofile.php?memberid=2

This is one i use which the script then knows it has to find user id number 2

[deansaddigh]

Thank you.

Just one question, why couldnt you have booknow.php?$error

and forget the error= part?

 

Could the error= be called what ever you want like

message=$error

[RaythMistwalker]

if you just put $error then it would look for a value after it.

 

 

Yes you could use any name you want providing you have $_GET['name'] and change name to match page.php?name=

[KevinM1]

For clarity's sake, the portion of the URL that begins with a '?' is called a query string.  The information in the string is sent to a server side script for processing.  This information is grouped as name-value pairs.  The first bit is the name of the parameter being sent to the script, while the part after the '=' is the value of that parameter.  You can send multiple name-value pairs by separating them with the '&' symbol, like so:

 

http://www.example.com/formprocessor.php?name=Bubba&age=44