Question

Here is the end of the javascript which runs when the button is clicked

xmlObj.open ('GET', /ajax.php, true);
xmlObj.send ('');
}

So this executes the php script ajax.php in the root directory:

<?php
echo "<script type='text/javascript'>\n";
echo "var e = document.getElementById('widget_more_');\n";
echo "e.innerHTML += '<p> <a>TEST</a> </p>';\n";
echo "</script>";
?>

Which is a javascript code that searches the html document for the element by id and appends the TEST link to it. I have ran this javascript in the html normally without trying to echo it through php and it works! BUT not when I try to do it through php! What am I doing wrong?

The reason I am doing it this way is because TEST is actually going to be a string from a php variable.

Please advise me.

Thanks.

Answer 1

Better would be:

ajax.php

<?php
$string = 'TEST';
echo $string;
?>

JavaScript

window.onload = function() {
    var e = document.getElementById('widget_more_');
    xmlhttp = window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject('Microsoft.XMLHTTP');
    xmlhttp.open('GET', '/ajax.php', true);
    xmlhttp.onreadystatechange = function() {
        if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
            e.innerHTML += '<p><a>' + xmlhttp.responseText + '</a></p>';
        }
    }
    xmlhttp.send(null);
}

I don’t really understand why you can’t use a PHP variable.