Joomla - PHP+$this wrapped in Javascript.

Question

Here is script I have. I'm trying to load it after page display. I'm trying to execute PHP code from javascript. What I need is to get email address of user who submitted the form at the textbox control.

var originator_email = document.getElementById("jform_sendto_first_step");
 originator_email.value = "<?php  echo JFactory::getUser($this->item->created_by)->get('email'); ?>"

This is the error I have. using $this when not in object context bla bla bla. What's proper way of doing this ?

Have tried to include the code:

<?php  echo JFactory::getUser($this->item->created_by)->get('email'); ?>

into the page directly and I can see it throw the result to the screen no problems.

Answer 1

As Lodder says you can't expect a .js file (which is run in the browser) to run PHP - which is run on the server.

The simplest way round this is to echo out your javascript code on the server side. So in your template's index.php, somewhere in the section add the following:

<script type="text/javascript">
<?php  echo JoomlaEmail = "' . JFactory::getUser($this->item->created_by)->get('email') . "';"; ?>
</script>

when PHP runs your template file this should get written out to the browser as:

<script type="text/javascript">
JoomlaEmail = "[email protected]";
</script>

Now in your original javascript code you should be able to do:

var originator_email = document.getElementById("jform_sendto_first_step");
originator_email.value = JoomlaEmail;

In doing things this way you are polluting Javascripts global namespace which is not really the done thing, but you should be able to use this method to write out some JS code in the PHP file which is encapsulated inside a function.

<script type="text/javascript">
(function () {
    var originator_email = document.getElementById("jform_sendto_first_step");
    originator_email.value = "<?php  echo JFactory::getUser($this->item->created_by)->get('email'); ?>"
})();
</script>