Passing javascript variable to new php page

Question

I've basically have a string a user can input and hit "Send". Then this string variable should be passed to another page that opens. I've tried using session, but it doesn't work (the second page doesn't load). Here's my code:

First page.

<?php
    session_start();
    echo "<input type=\"text\" id=\"myText\">";
    echo "<button onclick=\"submit()\">Submit</button>";

    $_SESSION['userInput'] = $input;
?>
<script type="text/javascript">
    var submit = function() {
        input = document.getElementById("myText").value;
        window.open ('runSecond.php','_self',false);}   
</script>

Second page.

<?php
    session_start();
    $input = $_SESSION['userInput'];
    system('./myPythonScript.py ' $input);
?>

What is the value of $input in the first page?

ibrahim mahrir
– ibrahim mahrir

2017-01-20 21:25:34 +00:00
Commented Jan 20, 2017 at 21:25 — ibrahim mahrir
– ibrahim mahrir, Commented Jan 20, 2017 at 21:25

bassxzero · Accepted Answer · 2017-01-20 21:25:58Z

1

Page 1

 <?php
        session_start();
        echo "<input type=\"text\" id=\"myText\">";
        echo "<button onclick=\"submit()\">Submit</button>";

        $_SESSION['userInput'] = $input;
    ?>
    <script type="text/javascript">
        var submit = function() {
            input = document.getElementById("myText").value;
            window.open ('runSecond.php?userInput=' + input,'_self',false);}   
    </script>

Page 2

<?php
    session_start();
    $input = $_GET['userInput'];
    system('./myPythonScript.py ' $input);
?>

answered Jan 20, 2017 at 21:25

bassxzero

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2 Comments

ibrahim mahrir Over a year ago

Use form and get rid of the javascript code would be better. No?

bassxzero Over a year ago

@ibrahimmahrir using a form is the obvious choice. I don't know his use case so i just fixed his code

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