How to get parameter from URL using javascript

Question

I passed a parameter through an URL using javascript. Here's the code:

<script> 
window.onload = function() {
// Creating a cookie after the document is ready 
    var cookies = document.cookie.split(";")
    var cookiePair = cookies[0].split("=");
    var cookie_user=cookiePair[1]; // remove ending parenthesis here 

	window.location.replace("http://192.168.206.1/foodblog/?page=http://192.168.206.1/test/ChangeInfo.php&username="+cookie_user);
};
</script>

The page that received the parameter is called ChangeInfo This is what I see in the URL when I get to the ChangeInfo page: http://192.168.206.1/foodblog/?page=http://192.168.206.1/test/ChangeInfo.php&username=nitzan

When I'm trying to get the parameter username from the URL, I get this error: Notice: Undefined index: username in C:\xampp\htdocs\test\ChangeInfo.php on line 5

The way I'm trying to get this parameter is to use $_GET like that: $username = $_GET['username'];

Does anyone know why this makes me a problem? Thanks in advance

you should put the PHP code for solving your question , not javascript's . and the error is for that there is no index 5 in array username. — TheFaultInOurStars
– TheFaultInOurStars, Commented Jun 17, 2020 at 10:35
my php code in the ChangeInfo page is : $username = $_GET['username']; I wanted to get the value of username parameter from the URL i created on the javascript part — Dean
– Dean, Commented Jun 17, 2020 at 10:37
Does this answer your question? How to get the value from the GET parameters? — Pawel Veselov
– Pawel Veselov, Commented Jun 17, 2020 at 14:54

Dean · Accepted Answer · 2020-06-17 11:04:26Z

1

I just solve the problem

I deleted the Page parameter from the URL I created in javascript part. this is the updated Javascript part:

<script> 
window.onload = function() {
// Creating a cookie after the document is ready 
    var cookies = document.cookie.split(";")
    var cookiePair = cookies[0].split("=");
    var cookie_user=cookiePair[1]; // remove ending parenthesis here 

	window.location.replace("http://192.168.206.1/test/ChangeInfo.php?username="+cookie_user);
};
</script>

thank you :)

answered Jun 17, 2020 at 11:04

Dean

131 silver badge3 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Kryptobarons · Accepted Answer · 2020-06-17 10:44:31Z

0

Ignoring the javascript part, needing to focus on PHP.

You are on this page: http://192.168.206.1/foodblog/?page=http://192.168.206.1/test/ChangeInfo.php&username=nitzan

And when you use $_GET['username'] you get the error, that it is not assigned. It seems that your $_GET is not working at all, probably Apache settings.

Also, it is safer to get GET parameters with isset first.

if(isset($_GET['username']) && $_GET['username']] {
  $username = $_GET['username'];
}
else {
  $username = '';
}

Then you can compare, if username is set or not in your php code:

if($username) {
  //Do something
}

Final thought. Is your first parameter page=http://192.168.206.1/test/ChangeInfo.php working? Can you get it through $_GET?

The problem seems to be just in the way you set and get the url parameter though $_GET. If you use some framework, it might be disabled to use $_GET directly and for example in Symfony you need to use:

$request->get('username');

answered Jun 17, 2020 at 10:44

Kryptobarons

363 bronze badges

2 Comments

B001ᛦ Over a year ago

I think you haven't understood OPs question fully. Their problem is that they don't receive the value of $_GET['username']

Dean Over a year ago

no the $_GET for page parameter is not working either . maybe the problem is the way I created the URL in the javascript part?

Collectives™ on Stack Overflow

How to get parameter from URL using javascript

2 Answers 2

Comments

2 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related