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Notice: Undefined index: signup in C:\xampp\htdocs\Genesway\siginpage.php on line 135

What I have tried:

<?php 
		if (isset($_GET['error'])){
			if ($_GET['error'] == "emptyfields"){
				echo'<p class="signuperror">Fill in all fields!</p>'; 
			}
			else if ($_GET["error"] == "invalidmail"){
				echo'<p class="signuperror">Invalid Email!</p>';
			}
			else if ($_GET["error"] == "passwordcheck"){
				echo'<p class="signuperror">Passwords do not match!</p>';
			}
			else if ($_GET["error"] == "usermailused"){
				echo'<p class="signuperror">Email already used!</p>';
		    } 
		}
		else if ($_GET['signup'] == "successes"){
				echo'<p class="success">Signup Successful!</p>'; //line 135
		    } 
		?>


HTML
header("location:../siginpage.php?signup=successes"); 
Posted
Updated 19-Mar-21 15:40pm

1 solution

Quote:
Notice: Undefined index: signup in C:\xampp\htdocs\Genesway\siginpage.php on line 135

You forgot to tell which line us 135.
Quote:
Notice: undefined index

For some reasons your code try to use a position in an array that does not exist.

Your code do not behave the way you expect, or you don't understand why !

There is an almost universal solution: Run your code on debugger step by step, inspect variables.
The debugger is here to show you what your code is doing and your task is to compare with what it should do.
There is no magic in the debugger, it don't know what your code is supposed to do, it don't find bugs, it just help you to by showing you what is going on. When the code don't do what is expected, you are close to a bug.
To see what your code is doing: Just set a breakpoint and see your code performing, the debugger allow you to execute lines 1 by 1 and to inspect variables as it execute.

Debugger - Wikipedia, the free encyclopedia[^]

Mastering Debugging in Visual Studio 2010 - A Beginner's Guide[^]
Basic Debugging with Visual Studio 2010 - YouTube[^]

phpdbg | php debugger[^]
Debugging techniques for PHP programmers[^]

The debugger is here to only show you what your code is doing and your task is to compare with what it should do.
   

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