php redirect_to() function undefined

Question

I am working on a database and I need to redirect the user to another page after the login process.

I am using the redirect_to() function. After the code executes it gives me the error

Fatal error: Call to undefined function redirect_to()

Here is what I tried

if($result){
        $num_rows = mysqli_num_rows($result);

        if($num_rows == 1){

        $found_user=mysqli_fetch_array($result);
        redirect_to("main.php");
        }

        else{
        redirect_to("index.php");
        }
}

redirect_to isn't a PHP method, if you haven't defined that function anywhere, then it won't exist... where did you get this function from?! — RaggaMuffin-420, Sep 03 '14 at 11:58
There is no built in function with that name. If you wrote one yourself, its out of scope — Steve, Sep 03 '14 at 11:58
header() is the function you are looking for http://php.net/manual/en/function.header.php — senK, Sep 03 '14 at 12:01

score 2 · Accepted Answer · answered Sep 03 '14 at 12:02

You have to define the redirect_to function before calling it. Try this code

    <?php
        if($result){
            $num_rows = mysqli_num_rows($result);
            if($num_rows == 1){
                $found_user=mysqli_fetch_array($result);
                redirect_to("main.php");
            }
            else{
                redirect_to("index.php");
            }
        }
        function redirect_to($location){
            header('Location:'.$location);
        }
?>

score 1 · Answer 2 · answered Sep 03 '14 at 11:59

1

Try to use header :

<?php
/* Redirection vers une page différente du même dossier */
$host  = $_SERVER['HTTP_HOST'];
$uri   = rtrim(dirname($_SERVER['PHP_SELF']), '/\\');
$extra = 'mypage.php';
header("Location: http://$host$uri/$extra");
exit;
?>

answered Sep 03 '14 at 11:59

Jihed Ben taher

179
5

score 0 · Answer 3 · answered Sep 03 '14 at 12:00

redirect_to() isn't a function. You want to use header("Location: main.php");

As this is adding header information, it needs to be loaded before anything is passed to the page (I believe), so don't attempt to print anything out to the page before header() is called.

If you want to do something like that, I suggest using javascript.

score 0 · Answer 4 · answered Sep 03 '14 at 12:00

redirect_to doesn't exist, or if it does, it's not been included/required correctly.

Add this;

if( function_exists('redirect_to') == FALSE ) { //Future proofing...
   function redirect_to($where) {
      header('Location: '. $where);
      exit;
   }
}

If you already have output, I would advise you looking at using output buffering.

score 0 · Answer 5 · answered Sep 03 '14 at 12:04

0

You can easily redirect using following header("Location: ....) syntax:

header("Location: main.php");
exit;

answered Sep 03 '14 at 12:04

munsifali

1,732
2
24
43

score 0 · Answer 6 · answered Sep 03 '14 at 12:04

0

You should equip your project with this function first as others have pointed. Alternatively refactor your code to use the builtin php function -> http://php.net/manual/en/function.http-redirect.php

answered Sep 03 '14 at 12:04

bulforce

991
1
6
11

php redirect_to() function undefined

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