How to assign a PHP variable to a JavaScript variable inside JavaScript code? The whole file is PHP though

Question

-------------php code ends here-------------

<script type="text/javascript">
    var e = <?php echo $tweetText; ?>; 
    var f = twemoji.parse(e);
    document.write(f);
</script>

-------------php code starts here-------------

If I put single quotes or double quotes before and after then it matches any ' or " inside the tweetText and doesn't let the string print to screen.

Answer 1

This solution works fine, just add ,,addslashes" to escape quotes

<script type="text/javascript">
    var e = '<?php echo addslashes($tweetText); ?>'; 
    var f = twemoji.parse(e);
    document.write(f);
</script>

Answer 2

<script type="text/javascript">
    var e = '<?php echo $tweetText; ?>'; 
    var f = twemoji.parse(e);
    document.write(f);
</script>

That's it

Answer 3

The best way to do this would be with json_encode as @vivek said in a comment.

<script type="text/javascript">
var e = <?php echo json_encode($tweetText); ?>;
var f = twemoji.parse(e);
document.write(f);
</script>

Answer 4

Try to put the whole string inside doublequotes, then escape the same - double quotes - inside the javascript string, with a simple str function:

<script type="text/javascript">
var e = "<?php echo str_replace('"','\"',$tweetText); ?>"; 
var f = twemoji.parse(e);
document.write(f);
</script>