数学轮从JSON编号

I have this code, perhaps not correct:

<?php echo round(" + json.list[0].number + ");?> // number is 25.54864869

I want round number to 25 but this code is wrong. How can I do?

Now I post full code because I haven't solved

<script language='javascript'>
    $(document).ready(init);

    function init() {
        $.getJSON("file.json").done(onSuccess).fail(onError);
    }

    function onSuccess(json) {
        console.log(json);
        $("#box").html("<table style='border-collapse:collapse;border:1px solid #ddddcc;color:#000000;width:100%;text-aling:center;'>" +
        "<tr><td style='width:25%;'> </td><td>" + json.list[0].dt_txt +  "</td><td>" etc etc

Why not ?

$number = 25.54864869;
echo floor($number); // 25

With only javascript you can do:

Math.floor(25.54864869) //25

This should work with JavaScript

Math.floor(25.54864869) // 25