Pass Data from One PHP Page to Another using header()

Question

I want to send data from one PHP file to another PHP file in a subfolder where the first PHP file is present. I have a folder named folder1 which has contains a PHP file named file1.php and I want to call another file named file2.php in a subfolder of folder1 named folder2. I am using the header() function like this in file1.php:

$host  = $_SERVER['HTTP_HOST'];
$uri   = rtrim(dirname($_SERVER['PHP_SELF']), '/\\');
$extra = 'folder1/folder2/file2.php';
header("location:http://$host$uri/$extra?sms=".$msg."&num=".$msg_num);

Data is not passing. Is there any solution using header()? I can't use cURL because of some restrictions.

Can you be more specific with what "data is not passing" means? — jprofitt
– jprofitt, Commented Nov 22, 2011 at 13:48
query string parameters are empty in file2.php. Even though they are being filled with valid data in file1.php — user1059869
– user1059869, Commented Nov 22, 2011 at 13:50
What do you get when you echo "location:http://$host$uri/$extra?sms=".$msg."&num=".$msg_num; — jprofitt
– jprofitt, Commented Nov 22, 2011 at 13:51
@jprofitt i am getting the data when i echo like that... but data does not get passed to file2 — user1059869
– user1059869, Commented Nov 22, 2011 at 13:59
I don't see you initializing $msg and $msg_num. As @jprofitt said, basically debugging 101, print the result and see if it matches your expectations. The only possibility here is that those variables aren't set and the query string is loaded with empty variables. Or, but you didn't say so, you've already echo'd something and you get the warning that headers are already sent, and the redirect never takes place. How do you see that the "data does not get passed to file2"? Have you tried var_dump($_SERVER);? — CodeCaster
– CodeCaster, Commented Nov 22, 2011 at 14:00

Andrew Kozak · Accepted Answer · 2011-11-22 20:22:05Z

4

The following code works:

file1.php:

<?php

header( 'Location: inner/file2.php?x=1&y=2&z=3' );

?>

inner/file2.php:

<?php

print '<pre>';

var_dump( $_GET );

print '</pre>';

?>

The result of visiting http://localhost/testing/file1.php is a redirect to http://localhost/testing/inner/file2.php?x=1&y=2&z=3 which displays:

array(3) {
  ["x"]=>
  string(1) "1"
  ["y"]=>
  string(1) "2"
  ["z"]=>
  string(1) "3"
}

I would suggest copying over these test files and proving to yourself that the basic concept of redirecting with passed values is working. Then, build up the rest of your code around a known-good kernel. Good luck!

answered Nov 22, 2011 at 20:22

Andrew Kozak

1,6602 gold badges22 silver badges35 bronze badges

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

Comments

jeroen · Accepted Answer · 2011-11-22 13:56:52Z

1

Without an example of the variables you want to send, it's kind of hard to tell what the problem might be, but a possible problem could be the characters in the variables.

To make sure there are no invalid characters, you can use urlencode(), perhaps in combination with htmlentities(), see the manual:

header("location:http://$host$uri/$extra?sms=".urlencode($msg)."&num=".urlencode($msg_num));

answered Nov 22, 2011 at 13:56

jeroen

91.8k22 gold badges117 silver badges132 bronze badges

2 Comments

T0xicCode Over a year ago

Also, you need to make sure that file2.php is in fact looking for the correct parameters.

user1059869 Over a year ago

i want to pass sms and num to file2.php from file1.php... i am assigning them correctly and taking the correct parameters using $_get in file2.php... but there is no data in the query string itself

Collectives™ on Stack Overflow

Pass Data from One PHP Page to Another using header()

2 Answers 2

Comments

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related