How to get JavaScript function data into a PHP variable

Question

I am using PHP and JavaScript. My JavaScript code contains a function, get_data():

function get_Data(){
    var name;
    var job;
    .....

    return buffer;
}

Now I have PHP code with the following.

<?php
    $i=0;
    $buffer_data;

    /* Here I need to get the value from JavaScript get_data() of buffer;
       and assign to variable $buffer_data. */
?>

How do I assign the JavaScript function data into the PHP variable?

I have the same problem as you. Have you solved it ? – SUN Jiangong Dec 21 '09 at 14:37 — SUN Jiangong, Dec 21 '09 at 14:37
Such a GREAT question ,seriously! Thanks for posting – Yusha Nov 12 '16 at 23:52 — Yusha, Nov 12 '16 at 23:52

score 11 · Accepted Answer · edited Apr 19 '13 at 01:08

11

Use jQuery to send a JavaScript variable to your PHP file:

$url = 'path/to/phpFile.php';

$.get($url, {name: get_name(), job: get_job()});

In your PHP code, get your variables from $_GET['name'] and $_GET['job'] like this:

<?php
    $buffer_data['name'] = $_GET['name'];
    $buffer_data['job']  = $_GET['job'];
?>

edited Apr 19 '13 at 01:08

Peter Mortensen

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answered Jan 07 '09 at 05:48

Uzbekjon

11,655
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1

@garcon1986, Yes, $.get() is using ajax! – Uzbekjon Jan 29 '10 at 11:49
2

I'm trying to do this to pass Javascript variables to a new window. Would the PHP code need to be in the new window or in the parent window? I can't get it to work either way. – Kenny Johnson Apr 22 '13 at 22:06

score 1 · Answer 2 · edited Apr 19 '13 at 01:11

1

JavaScript code is executed clientside while PHP is executed serverside, so you'll have to send the JavaScript values to the server. This could possibly be tucked in $_POST or through Ajax.

edited Apr 19 '13 at 01:11

Peter Mortensen

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answered Jan 07 '09 at 05:06

Demur Rumed

351
3
9

score 0 · Answer 3 · edited Apr 19 '13 at 01:13

    <script>
        function get_Data(){
            var name;
            var job;
            .....
            return buffer;
        }

        function getData()
        {
            var agree=confirm("get data?");
            if (agree)
            {
                document.getElementById('javascriptOutPut').value = get_Data();
                return true;
            }
            else
            {
                return false;
            }
        }
    </script>

    <form method="post" action="" onsubmit="return getData()"/>
        <input type="submit" name="save" />
        <input type="hidden" name="javascriptOutPut" id="javascriptOutPut"/>
    </form>

    <?php
        if(isset($_POST['save']))
        {
            var_dump($_POST['javascriptOutPut']);
        }
    ?>

score 0 · Answer 4 · edited Apr 19 '13 at 01:10

0

You would have to use Ajax as a client-side script cannot be invoked by server-side code with the results available on server side scope. You could have to make an Ajax call on the client side which will set the PHP variable.

edited Apr 19 '13 at 01:10

Peter Mortensen

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21
105
131

answered Jan 07 '09 at 05:05

Jobo

940
6
11

score 0 · Answer 5 · answered Jan 07 '09 at 06:01

0

If you don't have experience with or need Ajax, then just stuff your data into a post/get, and send the data back to your page.

answered Jan 07 '09 at 06:01

J.J.

4,856
1
24
29

How to get JavaScript function data into a PHP variable

5 Answers5

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