How to pass multiple parameters in url using php
Question
if(isset($_POST['submit'])){
$sem = $_POST['semester'];
$sess = $_POST['session'];
$sexam = $_POST['exam'];
$_SESSION['sem'] = $sem;
$_SESSION['sess'] = $sess;
$_SESSION['exa'] = $sexam;}?>
<a href="print.php?id=<?php echo
array($_SESSION['sem'],$_SESSION['sess'],$_SESSION['exam']); ?>"
target="_blank" class="btn btn-default"><i class="fa fa-print"></i> Print</a>
How can I pass these SESSION variables in URL to another page?
2 answers
solution1
1 2018-07-05 09:28:11
A session is a way to store information (in variables) to be used across multiple pages. Unlike a cookie, the information is not stored on the users computer.
So; Session variables hold information about one single user, and are available to all pages in one application.
Start a PHP Session
Page 1:
<?php
// Start the session
session_start();
?>
<!DOCTYPE html>
<html>
<body>
<?php
// Set session variables
$_SESSION["favcolor"] = "green";
$_SESSION["favanimal"] = "cat";
echo "Session variables are set.";
?>
</body>
</html>
Page 2:
<?php
session_start();
?>
<!DOCTYPE html>
<html>
<body>
<?php
// Echo session variables that were set on previous page
echo "Favorite color is " . $_SESSION["favcolor"] . ".<br>";
echo "Favorite animal is " . $_SESSION["favanimal"] . ".";
?>
</body>
</html>
Notice that session variables are not passed individually to each new page, instead they are retrieved from the session we open at the beginning of each page session_start() .
Refer this tutorial: PHP 5 Sessions
solution2
1 2018-07-05 10:21:48
There is no need to use $_SESSION variable
<?php
if( isset( $_POST['submit'] ) ) {
$sem = $_POST['semester'];
$sess = $_POST['session'];
$sexam = $_POST['exam'];
$_SESSION['sem'] = $sem;
$_SESSION['sess'] = $sess;
$_SESSION['exa'] = $sexam;
$urlFromSession = "semester={$_SESSION['sem']}&session={$_SESSION['sess']}&exam={$_SESSION['exa']}";
$urlFromPost = "semester={$_POST['semester']}&session={$_POST['session']}&exam={$_POST['exam']}";
}
?>
<a href="print.php?<?= $urlFromSession ?>" target="_blank" class="btn btn-default"><i class="fa fa-print"></i> Post - urlFromSession</a><br/>
<a href="print.php?<?= $urlFromPost ?>" target="_blank" class="btn btn-default"><i class="fa fa-print"></i> Post - urlFromPost</a><br/>
URL will be something like this print.php?semester=test&session=test&exam=test
You will get parameters inside print.php page
<?php
echo $_GET['semester'];
echo $_GET['session'];
echo $_GET['exam'];
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