CODEWITHSUNDEEP
ajaxwordpress
user3510787
user3510787

Reputation: 7

Can't use get_field()

I have a working AJAX function that sends a variable to a page I made within the template directory. I am using Advanced Custom Fields and execute the get_field($name, $id) function, but I get a 500 server error. I looked in my error log (Apache) and saw that it got an undefined function error. That's strange, because when I use it on front-page.php it actually works.

[Fri May 09 11:56:19.336469 2014] [:error] [pid 2235] [client 192.168.1.111:54118]
PHP Fatal error:  Call to undefined function get_field()
in /var/www/html/wp-content/themes/Custom Theme/setphoto.php on line 4,
referer: 192.168.1.115/

PHP

<?php
$p = $_GET['p'];
$url = get_field("nieuwsveld", $p);
echo $url;
?>

JavaScript

$(".a_item").mouseover(function(){
            // Krijg url + id van href
            var href = $(this).attr("href");
            var p = href.replace("http://192.168.1.115/?p=", "");
            var xhr = new XMLHttpRequest();
            xhr.open("GET", "wp-content/themes/HSV Saints/setphoto.php?p="+p, true);
            xhr.send();

            xhr.onload = function(){
                console.log(xhr.responseText);
            }
           // $("#photo_news_photo").attr("src", img_url);


        });
    </script>

How can I enable WordPress to use get_field in an external file within my template directory?

Upvotes: 0

Views: 5211

Answers (1)

user_23934afaue
user_23934afaue

Reputation: 11

I just had this problem and fixed it by including acf.php at the top of the php file that handled the ajax request.

So for your code it would be 

<?php

include_once(__DIR__.'path/to/file/acf.php');

$p = $_GET['p'];
$url = get_field("nieuwsveld", $p);
echo $url;

?>

Upvotes: 1

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