php and javascript

rasat · 2007-02-12 08:23:02

1. <script>
2. var r=confirm("Are you sure you want to delete")
3. if (r==true) {
4. alert("You selected Yes")
5. <?php $del = "yes"; ?>
6. } else {
7. alert("You selected No")
8. <?php $del = "no"; ?>
9. }
10. </script>

When PHP is included, whatever is selected (OK or Cancel), the above script will always read line 8 (php). The java lines (4 and 7) does correctly as per selection. Any solution to get php as per selection?

noriko · 2007-02-12 15:37:12

it's because php doesn't interact with javascript, nor the browser..
basically the php code never reaches the browser.
mayeb you could walk around it by using ajax or something, to cache the value in a session cookie. i dunno.

Stalwart · 2007-02-12 23:41:53

PHP code is executed before javascript code reaches user's browser

codemac · 2007-02-13 02:43:01

You could just POST the result to a controller page that then deletes the whatever, and then forwards back to the previous referring page.

rasat · 2007-02-13 12:00:25

codemac wrote:

You could just POST the result to a controller page...

I am not familar with the word "controller page". Can you give a sample.

noriko · 2007-02-13 12:38:24

head.html

<script language="JavaScript">
var r=confirm("Are you sure you want to delete")
if (r==true) {
    alert("You selected Yes")
    document.href="bounce.php?del=yes"
}
else {
    alert("You selected No")
    document.href="bounce.php?del=no"
 }
</script>

bounce.php

<?php
 // @session_start;
if (isset($_POST['del'])) {
    if ($_POST['del'] == 'yes') ) {
        // $del = 'yes';
        // $_SESSION['del'] = 'yes';
        // do_whatever ...
    }
    else {
        $del = 'no';
        // $_SESSION['del'] = 'no';
        // do whatever ... 
    }
}
@header("Location: head.html") or echo "<meta http-equiv="refresh" content="2;url=head.html">";
?>

obviously that doesn't works as-is, and neither does the concept.
it's just a small demonstration on your last question.

[vEX] · 2007-02-13 18:24:14

You would not use POST if you put the stuff in the URL, you use GET.

rasat · 2007-02-14 07:38:16

Thanks, noriko and vEX. I will test the solution.

noriko · 2007-02-14 13:35:03

ya sory i forgot which way roudn they went.. cos i usually use request...

rasat · 2007-02-15 09:17:14

Couldn't get to work, here what I am trying to do. What's missing? For my information, to read the full url of "bounce.php", how to?

head.php

<script language="JavaScript">
    document.href="bounce.php"
</script>

<?php
$del=$_GET['del'];
echo "Test: $del";
?>

bounce.php

<?php
$del = "yes";
?>

noriko · 2007-02-15 14:38:31

what exactly are you trying to do....

btw, see my example above, you are implementing it incorrectly.

the php code u wrote needs to be in the same file.
either in head with the js, or in bounce.

rasat · 2007-02-15 16:54:10

noriko wrote:

...the php code u wrote needs to be in the same file.
either in head with the js, or in bounce.

I tried in different ways both your sample and mine. I am concluding javascript don't find the bounce.php. This is way I asked how to display the url (or path) created by document.href="bounce.php" ... to be sure the location is correct.

I am not familar with javascript. Does document.href="" do same as include() in php?

noriko · 2007-02-15 17:36:07

no, it changes the document's href (hypertext reference, i think) .. basically it redirects the page, much like header("Location:[*]")`php does.
what exactly happens?
does it change page? it should ...

ps:
whatever it is ur trying to do, i'm sure it can be done with forms, don't forget js isn't enabled on every webbrowser .... i personally have all plugins except mplayer+flash turned off in fx, and have no addons, or themes.

aquila_deus · 2007-02-17 15:08:51

rasat wrote:

1. <script>
2. var r=confirm("Are you sure you want to delete")
3. if (r==true) {
4. alert("You selected Yes")
5. <?php $del = "yes"; ?>
6. } else {
7. alert("You selected No")
8. <?php $del = "no"; ?>
9. }
10. </script>
When PHP is included, whatever is selected (OK or Cancel), the above script will always read line 8 (php). The java lines (4 and 7) does correctly as per selection. Any solution to get php as per selection?

hmmm you're confused. PHP is processed before end-user's browser get the web page and run javascript. So the line 5 and 8 don't make sense.

Your js code could then submit back for php to handle the change.

BTW have you read about MVC? It can help you to build website on a clear design, and skip a lot of error/trying steps. Most of non-mvc websites I have seen are all very messy and hard to maintain and code.

reaper · 2007-02-17 15:36:38

i have ..
<a href="?section=gb&acc=delete" onclick="return confirm('Delete?')">Del</a>

rasat · 2007-02-23 13:24:49

reaper wrote:

.... onclick="return confirm('Delete?')">Del</a>

Thanks, reaper!! That solved the issue I was searching.

Arch Linux

#1 2007-02-12 08:23:02

php and javascript

#2 2007-02-12 15:37:12

Re: php and javascript

#3 2007-02-12 23:41:53

Re: php and javascript

#4 2007-02-13 02:43:01

Re: php and javascript

#5 2007-02-13 12:00:25

Re: php and javascript

#6 2007-02-13 12:38:24

Re: php and javascript

#7 2007-02-13 18:24:14

Re: php and javascript

#8 2007-02-14 07:38:16

Re: php and javascript

#9 2007-02-14 13:35:03

Re: php and javascript

#10 2007-02-15 09:17:14

Re: php and javascript

#11 2007-02-15 14:38:31

Re: php and javascript

#12 2007-02-15 16:54:10

Re: php and javascript

#13 2007-02-15 17:36:07

Re: php and javascript

#14 2007-02-17 15:08:51

Re: php and javascript

#15 2007-02-17 15:36:38

Re: php and javascript

#16 2007-02-23 13:24:49

Re: php and javascript

Board footer