get array element from php

carloskire · June 27th, 2011, 08:35 PM

Hi.
I have an array on php, which is available to javascript:

document.getElementById("element_1").value = "<?php echo $arrdata[3][0]; ?>";

(noted the number 3 ? I need to put a javascript variable instead, 0,1,2 etc.)

I need this to be dynamic, so i have this javascript variable $curr added to dynamically construct the php part

var $mystr = '<' + "?" + "php" + " echo $arrdata[" +$curr+ '][0]; ?>';

Tried several ways:
document.getElementById("element_1").value = '"'+$mystr+'"';
or
document.getElementById("element_1").value = $mystr;

but still $mystr is not "expanded", so my control gets:
"<?php echo $arrdata[1][0]; ?>"
as a value, instead of the value from the array, which i insist, is available thrugh "<?php echo $arrdata[3][0]; ?>" for example.

How should I construct the value part to embed javascript $curr variable?

Any help greatly appreciated.

Carlos

Imar · June 28th, 2011, 04:33 AM

Hi Carlos,

Not exactly sure what you're trying to accomplish, but it looks like you're mixing up server side PHP and client side JavaScript. The PHP code runs on the server first, generating HTML and JavaScript. This is then sent to the browser where the JavaScript executes. At that stage, you can't use the JavaScript variables in PHP as PHP has already finished generating the output.

If you can describe what it is you're doing, we may be able to suggest other solutions.

Cheers,

Imar