What is the main issue the user is facing when trying to pass a PHP array to a JavaScript array?

The main issue the user is facing when trying to pass a PHP array to a JavaScript array is that PHP runs on the server-side, while JavaScript runs on the client-side. Therefore, you cannot directly pass a PHP array to a JavaScript array. To solve this issue, you can use JSON encoding to convert the PHP array into a JSON string that can be easily passed to JavaScript and then decoded back into a JavaScript array.

<?php
$phpArray = array("apple", "banana", "orange");
$jsonArray = json_encode($phpArray);
?>

<script>
var jsArray = <?php echo $jsonArray; ?>;
console.log(jsArray);
</script>