How to access external javascript file from the php file

Question

I need to access a javascript function which is in the separate file.

Here is what I am trying to do:

in the php file I have:

var session_lang= <?php echo $_SESSION['SESS_LANGUAGE'];?>;
    if (session_lang!='')
    {
        check_and_change(session_lang);
    }
});

and I have this check_and_change() function in that separate javascript file which is of course included.

One more thing. I am getting error that there is a unknown < sign, so probably my php variable can't be read. If someone can please check that too.

Where is the }); coming from? And what is getting parsed into the HTML output? Maybe an error is getting placed on the variable location causing the unknown < error. — Sven van Zoelen
– Sven van Zoelen, Commented Jul 21, 2012 at 7:26

Sven van Zoelen · Accepted Answer · 2012-07-21 07:24:24Z

1

If the error line is the line with the session_lang variable, then you forgot the double qoutes (if the session_lang is a string).

var session_lang = "<?php echo $_SESSION['SESS_LANGUAGE'];?>";
    if (session_lang!='')
    {
        check_and_change(session_lang);
    }

edited Jul 21, 2012 at 7:24

answered Jul 21, 2012 at 7:20

Sven van Zoelen

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6 Comments

Madara's Ghost Over a year ago

Have you considered that $_SESSION['SESS_LANGUAGE'] might already contain those double quotes?

Sven van Zoelen Over a year ago

No I didn't, would be ugly though to add double qoutes to an variable that is probably used in other (none HTML) functions as well.

Madara's Ghost Over a year ago

I'm aware of that, just saying, don't say it as if it were 100% correct, it's also possible that he doesn't have PHP enabled at all the the PHP tags are rendered on the page.

user123_456 Over a year ago

It is not working, now I am getting unexpected syntax ILLEGAL

user123_456 Over a year ago

got it to work. I forgot to put session_start(), new problem is that I can access that function which is in the included file

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