Pass php variable via js/jquery redirect url function

Question

In my php i'd like to redirect via javascript/jquery a url with a php variable via js function.

My js function

function Redirect(url){
 document.location.href=url;
} 

In my php page i try in this way but I fear there is a problem with the syntax in the $url.

if ($opz = 1){
 $url = "index.php?opz=OK#PG2&id=" . $_GET['id'];
 echo "<script>";
 echo "$(function(){ Redirect($url); });";
 echo "</script>";
}

If I try to redirect in this way everything works perfectly (no Redirect function).

echo "<script>
 document.location.href='index.php?opz=OK#PG2&id=$_GET[id]'
 </script>";

Can anyone suggest me what is the correct syntax to pass my php variable via the js Redirect function? Thanks.

• Felix Kling: Have a look at the generated HTML and learn how to debug JavaScript.

Answer 1

Just change echo "$(function(){ Redirect($url); });"; to

echo "$(function(){ Redirect('$url'); });";

Notice the quotes. the url is to be passed to the Redirect function as a string. So enclose it in single quotes. like Redirect('$url');

Answer 2

your problem is simple:

 echo "$(function(){ Redirect($url); });";

should be replaced with

 echo "$(function(){ Redirect('$url'); });";

Answer 3

Why you are trying to redirect your webpage using javascript.

You can do it with PHP also. Use PHP header() function to redirect your page.

if ($opz = 1){
 $url = "index.php?opz=OK#PG2&id=" . $_GET['id'];
 header("Location:".$url);
}

Answer 4

Assuming the Javascript code being generated is OK try window.location

Answer 5

try like below

if ($opz = 1){
 $param = 'opz='.urlencode("OK#PG2").'&id='.$_GET['id'];
$url = "index.php?".$param;
echo "<script>";
echo "$(function(){ Redirect($url); });";
echo "</script>";
}

and pick up opz using urldecode();

Answer 6

The problem is caused by the fact that your generated HTML looks like this:

Redirect(index.php?opz=.....);

As you can see, you're missing quotes.

To put a variable from PHP into JavaScript, I always use json_encode. This ensures that, no matter what I pass it, JavaScript will see the same thing. It takes care of quoting, escaping, even iterating over arrays and objects.