How to pass a PHP array to JS and generate a JS array

Question

$allVal =  array(array(123, 0), array(345, 1), array(456, 2));

Code at above is an PHP array, currently I would like to pass this array to javascript and the output in Javascript should look like the following:

<script type="text/javascript">
      var d = [[123, 0], [345, 1], [456, 2]];
</script>

BTW: PHP code and Js code in the same page.

Is there anyone can help me? Thanks in advance!

Answer 1

You can use php's json_encode method to convert an array into a javascript oject prior to sending it back to the client side. See

http://php.net/manual/en/function.json-encode.php

--Inline Use a line similar to

<?php echo "var = ". json_encode($myArray); ?>

--Asynchronous A line similar to

<?php echo json_encode($myArray); ?>

One thing you will have to take into consideration is that you'll need to pass a header to the server stating that you expect the response format to be json.

Answer 2

json_encode should be able to help you

<?php
$allVal =  array(array(123, 0), array(345, 1), array(456, 2));
?>
<script type="text/javascript">
<?php echo 'var d = ' . json_encode($allVal) . ';'; ?>

</script>