来自AJAX调用的外部PHP函数

Question

All the strings on my site are pulled from a php language function named lang() inside lang.php. The function works when I use it within the index.php file, ie:

<p><? echo lang('hello-world'); ?></p>

However, if I use elem.load('something.php');, where something.php contains the same above code, nothing gets returned. In fact, if I type:

<p><? echo haslkdfhasdf('hello-world'); ?></p>

I don't even get an error. Now, after reading this Call PHP function in ajax and using header() I still don't get a returned string. My question then is, why doesn't the function work from inside an external php file loaded through AJAX, and what am I missing?

[EDIT] Whoops forgot my AJAX code. Here's what I'm using to load the file:

$('#main-content').load('_foo/views/error.php');

Here is the error.php file:

<p id="ajax-error-message">
<? echo lang('html'); ?>
</p>

Now, I know that the file loads because if I replace the function with "echo 'Hello World';" it displays it properly. And here is the site incase you need it: http://afoobar.com , when you click on HTML5 Sandbox it executes the AJAX.

I'll try your suggestions in the mean time!

Answer 1

Since I haven't seen your JavaScript code (minus the elem.load() I can't give you a guaranteed solution. I can, however, suggest that you change elem.load() for something like this:

$.ajax({
    url: 'something.php',
    cache: false,
    success: function(response) {
        // do something
    },
    error: function(xhr, error) {
        try {
            console.debug(xhr); 
            console.debug(error);
        } catch (err) {
            alert(err);
        }
    }
});

Additionally, you could do practically the same thing using $.ajaxSetup();.

EDIT

Keep in mind that you have include (or require) all the needed files within your AJAX call because it is literally making a separate HTTP request.

// at the top of error.php
require_once '/path/to/lang.php';