jquery insert js variable into php function

Question

I want to insert js variable into my php function in javascript.

JS:

function moderator_activity(who){
 var getIt = <?php echo json_encode(moderatorActivity()); ?>;
}

I want to make something like that:

var getIt = <?php echo json_encode(moderatorActivity(who)); ?>;

where "who" is js variable.

I tried to do:

var getIt = <?php echo json_encode(moderatorActivity(?>who<?)); ?>;

but i got:

Parse error: syntax error, unexpected ';', expecting ')'

I don't want to make another file with php function so that's why i combined it :)

I hope you understand.

php and javascript run in different environments at different times. What you are trying can't be done. Explain your use case — charlietfl
– charlietfl, Commented Jul 20, 2014 at 2:06
That is just not possible. JS runs on the browser, PHP on the server side. — techfoobar
– techfoobar, Commented Jul 20, 2014 at 2:06
@charlietfl I'm getting value from mysql which I want to show in html. I has got event in pagination <a onclick="moderator_activity('<? echo $row['name']; ?>');">Next</a> — Paweł Zarzecki
– Paweł Zarzecki, Commented Jul 20, 2014 at 2:10

user3117575 · Accepted Answer · 2014-07-20 02:14:21Z

1

Say you create a file named script.php, use can use PHP to change the MIME of the document, using the header PHP function.

<?php header("Content-Type: text/javascript"); ?>

window.onload=function(){
  console.log('<?php echo "Using PHP!"; ?>');
}

Although this data isn't interchangeable because it's generated server-side, this is the best you're going to get.

You would include it on you website, something like:

<script src="script.php" type="text/javascript"></script>

As a better alternative, you could try something with Ajax.

answered Jul 20, 2014 at 2:14

user3117575

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2 Comments

I tried with json and I guess it's the best way to do what I want, but thanks for your reply.

Alright, you should accept the answer anyways because it solves the question regarding the post. Thanks.