如何将变量从PHP传递给javascript

Question

I have a php page with

<?php echo $_SERVER['DOCUMENT_ROOT']?>

Then my javascript is

var data = "Not Set";
$.get("test.php",function(returnData,requestStatus,requestObject){
    data = returnData;
    alert(data);
});

If I navigate directly to the php page on the site, it displays the data that I need. I just can't seem to get the data into my javascript.

Am I on the right track and if so where am I going wrong? Or is there an easier way to get the full filepath when working with a server? Currently if I run document.location.href in my javascript it returns .

http ://127.0.0.1/etc

Answer 1

It seems you are overthinking this. There is hardly any need to use ajax, but of course you can and just append() the data from the ajax call to your $('body') and jquery will automatically execute things inside a <script> tag.

var serverRoot = '<?php echo $_SERVER['DOCUMENT_ROOT']?>';