Simple PHP array to Javascript array

Question

I have an array in php lets call it:

$nums = array(10,25,52,32,35,23);

I want to send it to my javascript function like this:

var nums=[10,25,52,32,35,23];

How can i do this? (My javascript file name is "nums.js")

Edit:

nums.js is a javascript code. It changes the values of table in the html. But the values only exist in php. So i have to send the values to javascript.

Answer 1

PHP >= 5.2

The json_encode function is for this purpose:

<?php echo 'var nums=' . json_encode(array(10,25,52,32,35,23)) . ';'; ?>

Docs: http://php.net/json_encode

PHP < 5.2

If you can't use json_encode, take a look at this post for a way to define an equivalent.

Answer 2

As long as your javascript file is being parsed by PHP before being sent to the client, then this should work:

<?php echo "var nums=[" . implode(',', $nums) . "];"; ?>

Answer 3

Just json_encode() the array and then output it as an array literal in javascript.

<?php
$nums = array(10,25,52,32,35,23);
$nums_json = json_encode($nums);
?>
<script type="text/javascript">
var nums = <?php echo $nums_json; ?>;
</script>

Answer 4

you can also use json_encode() but only possible from php 5.2 see more: https://www.php.net/manual/fr/function.json-encode.php

or you can use this function:

function php2js ($var) {
    if (is_array($var)) {
        $res = "[";
        $array = array();
        foreach ($var as $a_var) {
            $array[] = php2js($a_var);
        }
        return "[" . join(",", $array) . "]";
    }
    elseif (is_bool($var)) {
        return $var ? "true" : "false";
    }
    elseif (is_int($var) || is_integer($var) || is_double($var) || is_float($var)) {
        return $var;
    }
    elseif (is_string($var)) {
        return "\"" . addslashes(stripslashes($var)) . "\"";
    }
    return FALSE;
}