I've the following array in PHP:

$user_data = Array
(
    [session_id] => 30a6cf574ebbdb11154ff134f6ccf4ea
    [ip_address] => 127.0.0.1
    [user_agent] => Mozilla/5.0 (Windows NT 5.1; rv:9.0.1) Gecko/20100101 Firefox/9.0.1
    [last_activity] => 1326795168
    [user_id] => 1
    [username] => praditha
    [logged_in] => 1
    [user_status] => 1
    [email] => [email protected]
)

and then in javaScript, I encode that array to json using:

var userData = '<?php echo json_encode($user_data); ?>';

and I using firebug to see userData value and this is the result:

"{"session_id":"30a6cf574ebbdb11154ff134f6ccf4ea","ip_address":"127.0.0.1","user_agent":"Mozilla/5.0 (Windows NT 5.1; rv:9.0.1) Gecko/20100101 Firefox/9.0.1","last_activity":1326795168,"user_id":"1","username":"praditha","logged_in":true,"user_status":"1","email":"[email protected]"}"

and the question is how di I access the array of userData ?
For example I wanna get the username of the userData.

I've the following array in PHP:

$user_data = Array
(
    [session_id] => 30a6cf574ebbdb11154ff134f6ccf4ea
    [ip_address] => 127.0.0.1
    [user_agent] => Mozilla/5.0 (Windows NT 5.1; rv:9.0.1) Gecko/20100101 Firefox/9.0.1
    [last_activity] => 1326795168
    [user_id] => 1
    [username] => praditha
    [logged_in] => 1
    [user_status] => 1
    [email] => [email protected]
)

and then in javaScript, I encode that array to json using:

var userData = '<?php echo json_encode($user_data); ?>';

and I using firebug to see userData value and this is the result:

"{"session_id":"30a6cf574ebbdb11154ff134f6ccf4ea","ip_address":"127.0.0.1","user_agent":"Mozilla/5.0 (Windows NT 5.1; rv:9.0.1) Gecko/20100101 Firefox/9.0.1","last_activity":1326795168,"user_id":"1","username":"praditha","logged_in":true,"user_status":"1","email":"[email protected]"}"

and the question is how di I access the array of userData ?
For example I wanna get the username of the userData.

• php
• javascript
• arrays
• json

6 Answers 6

Since you wrapped your json_encode output in quotes, $userData is a string instead of an object. Losing the quotes will create a Javascript object:

var userData = <?php echo json_encode($user_data); ?>;
alert(userData.username);

userData.session_id;
userData.ip_appress;

and so on.

Don't quote it. Just

var userData = <?php echo json_encode($user_data); ?>;

then you can access userData.session_id and so on.

You simply need to remove the quotes around the string in Javascript. So change:

var userData = '<?php echo json_encode($user_data); ?>';

to:

var userData = <?php echo json_encode($user_data); ?>;

josn_encode() outputs a Javascript object literal, so it is valid Javascript code. By surrounding it with quotes you simply populate a string with this data, but if you remove them it will work.

use it as

<?php
$data = array('index1'=>'value1','index2'=>'value2');
?>
<script>
    var json_data = <?php echo json_encode($data);?>;
    alert(json_data['index1']);
    alert(json_data['index2']);
</script>

<DIV id="test"><?echo json_encode($_POST);?></div>



<div id="ajax">

</div>

<script>
var sample=$("#test").text();
var obj = jQuery.parseJSON(sample);
$("#ajax").load("ceva.php",obj);

</script>

Just a script I used to get data from a div and send it to a script using $_POST. Use jQuery