Passing id to php script from javascript

Question

I have javascript code passing id to my php script in intervals of time, once the id is not being passed (it means the user has closed the javascript page). Block in if statement should run in php script. But this scenario is not happening with me.

Code is below

JavaScript

<script type="text/javascript" src="jquery-1.11.1.js"></script>
<script type="text/javascript" >

$(function(){
    // set interval for 5 second
    setInterval(function(){
            $.ajax({url: "test9.php?id=('1')"

            });
    }, 50000);
});

</script>

PHP

<?php
while(true)
{
    $id = $_GET['id'];
    if(isset($_GET['id']))
    {
        file_put_contents('/tmp/phptest1234.txt', 'test');
    }
    else
    {
        file_put_contents('/tmp/phptest.txt', 'test');
    }
}
?>

should this be `$.ajax({url: "test9.php?id=1"` or do you really want the url to have `('1')`? — caspian, Jul 01 '14 at 20:02
@ Kristoffer, i got javascript code passing `id` to my php script, once the `id` is not being passed`it mean user close javascript page` block in if statement should run in my php script. did you get my question. — user3792355, Jul 01 '14 at 20:02

Indranil Mondal · Answer 1 · 2014-07-02T18:25:35.143

1

If the page is closed, then the page will not send any AJAX request to your server. So that condition will not arise. So it'll be only in if, the else part will not be executed at any time.

If you want, that the get request will be called when the page will be closed without if, then you can try the following:-

<body onbeforeunload="closePage()">
</body>

And then in the closePage function make the ajax request without id:-

<script type="text/javascript" >

$(function(){
// set interval for 5 second
setInterval(function(){
        $.ajax({url: "test9.php?id=('1')"

        });
}, 50000);
});

function closePage(){
 $.ajax({url: "test9.php

 });
}
</script>

edited Jul 02 '14 at 18:25

answered Jul 01 '14 at 20:04

Indranil Mondal

2,799
3
25
40

the `else` part is not executed when the user close the page only the `if` is executed when the page is open. – user3792355 Jul 01 '14 at 20:13
Yeah that's what I said, when the page is open, the page will send the id with the AJAX call, so if part will be executed. And when the page is closed, no AJAX will be sent from the page. So there is no situation when the else part will be executed. – Indranil Mondal Jul 01 '14 at 20:19
any idea how we can accomplish this scenario. – user3792355 Jul 01 '14 at 20:22
You mean request without id? You can modify your url to test9.php (just remove the id part) for testing only. – Indranil Mondal Jul 01 '14 at 20:25
See if this can help you: http://stackoverflow.com/a/1632004/522176 – droidballoon Jul 01 '14 at 20:29
@droidballoon i already sow it. thank you. but not helping what i want. – user3792355 Jul 01 '14 at 20:44
@ Indra i already removed the `id` part else is being executed while the page is open. what i want else to be executed when closing the page. – user3792355 Jul 01 '14 at 20:48
You can try And the in the closePage function in script call the POST request without id. – Indranil Mondal Jul 02 '14 at 08:01
@ user3792355 I've added some code in my answer, you can try it. I think it'll fulfill your requirement. – Indranil Mondal Jul 02 '14 at 18:28

score 0 · Answer 2 · answered Jul 01 '14 at 20:06

0

The url should not have ('1'), you need to change the following line

$.ajax({url: "test9.php?id=('1')"

to

$.ajax({url: "test9.php?id=1"

answered Jul 01 '14 at 20:06

caspian

1,804
14
14

thank you. but this not solving my problem. about what i asked. – user3792355 Jul 01 '14 at 20:11

score 0 · Answer 3 · answered Jul 01 '14 at 20:12

0

you can pass you id by AJAX data attribute, like this.

by get request

    $.ajax({

        type:'get',
        url:'test9.php',
        data:{'val':value},
        success:function(data){
              }

by post request

    $.ajax({

        type:'get',
        url:'test9.php',
        data:{'val':value},
        success:function(data){
              }

answered Jul 01 '14 at 20:12

Suneel Kumar

5,621
3
31
44

but this can solve my problem for what i asked in my question? – user3792355 Jul 01 '14 at 20:16
yes, I think it will solve your problem. try and let me know the result. – Suneel Kumar Jul 01 '14 at 20:20
@Indra gave the correct answer above. The else part will never get executed since no AJAX call will be made if the page if closed. – droidballoon Jul 01 '14 at 20:25
@Sunil omrey not working i closed the page nothing being executed! in my php script. – user3792355 Jul 01 '14 at 20:41
@user3792355 can you paste the updated code. So I can check. Try to print $_GET and see what you are getting. – Suneel Kumar Jul 02 '14 at 14:11

Passing id to php script from javascript

3 Answers3