在AJAX中嵌入PHP

Question

First of all, let me supply what I'm disposing with in this scenario:

index.php

<script text='type/javascript'>
    $(document).ready(function(){
        $('#load').click(load);
    });

    function load(){
        $.ajax({
            data:<?php header('HTTP/1.0 404 Not Found');echo 'Ok'; ?>
        }).done(function(data){
            $('#content').append(data);
        }
    }
</script>

<select id='load'>
   <option value='1'>1</option>
</select>

I need whenever the select menu is clicked, a PHP code snippet to be executed. In this case let's I need the string 'Ok' to be executed (just an example so as to see how it would work). However I'm not quite confident as far as Ajax is concerned but I'm certain the following is the issue:

data:<?php header('HTTP/1.0 404 Not Found');echo 'Ok'; ?>

I do not prefer to use url:'' and redirect to a page where the PHP I want to execute is located. I need it all in the index.php file. As well as that I expect this to be done with Ajax because I need the requests being asynchronous so that the page won't be refreshed.

In fact I'm developing a database modifier and I need to list all tables from a corresponding database and I need to validate that through Ajax as you might guess. So I need whenever a database has been chosen to list the tables from within it. I'm posting all this in case it may help.

Thank you in advance for any answers and possible solutions!

Answer 1

You can't embed PHP into javascript. You will have to use AJAX to load the data from another PHP page.

Something like this:

<script text='type/javascript'>
    $(document).ready(function(){
        $('#load').click(load);
    });

    function load(){
        $.ajax({
            url: http://www.example.com/phppage.php,
            type: POST,
            data: { name: "John", location: "Boston" }
        }).done(function(data){
            $('#content').append(data);

        }
    }
</script>

<select id='load'>
   <option value='1'>1</option>
</select>

You can read more on the documentation page for jQuery AJAX .

Answer 2

First of all ,there is no way to Embedding PHP within AJAX .PHP is the language which running on the server, and ajax is just the javascript running on your browser. PHP cant't running on the browser. But your brower can't send http requerst to the PHP server and get the reply from it .So, like Alex Dumitru answered .You need a php page like 'phppage.php' the example which Alex Dumitru mentioned to get your request via ajax.Then you can finsh other functions.