如何加载php或html文件追加

I need to load a php file as shown below."How can i insert or load php code"

<script>
$(document).ready(function() {

    $("#tabs").tabs();
    $("#btn2").click(function() {
        var num_tabs = $("div#tabs ul li").length + 1;
        $("#tabs ul").append("<li><a href='#tabs-" + num_tabs + "'>Ajay#" +
            num_tabs + "</a></li>");
        $("div#tabs").append("<div id='tabs-" + num_tabs + "'>"
            How can i insert or load php code " < /div>").append(aj);
        $("#tabs").tabs("refresh");

    });

});
</script>

You just need to pass the num_tabs value in your PHP file. Here in my example i have passed it using tab_num variable.

Get the tab_num variable using $_GET in your PHP file. Then just echo your desired HTML in the PHP file and you will get the data in your data variable.

<script>
$(document).ready(function() {

    $("#tabs").tabs();
    $("#btn2").click(function() {
        var num_tabs = $("div#tabs ul li").length + 1;

        $.get("filename.php", {
            tab_num: num_tabs
        }, function(data) {
            $("#tabs ul").append(data);
        });


        $.get("filename.php", {
            tab_num: num_tabs
        }, function(data) {
            $("div#tabs").append(data);
        });


        $("#tabs").tabs("refresh");
    });

});
</script>

filename.php

echo '<div id="tabs-'.$_GET['tab_num'].'"><div id="aj"></div></div>';