How do I configure WordPress to return JSON on Nginx?
When making Ajax calls in my WordPress site, instead of receiving plain JSON, I see <?php JSON.
Everything works fine on the site, except for admin-ajax calls.
Example of a regular call: https://i.stack.imgur.com/Xyz2m.png
Example of a file upload call: https://i.stack.imgur.com/DpJIl.png
Technical Information:
Wordpress 4.5
PHP 5.6.11-1ubuntu3.1 (fpm-fcgi)
Nginx version: nginx/1.9.3 (Ubuntu)
Header information:
Request URL:http://SERVER/wp-admin/admin-ajax.php
Request Method:POST <br/>
Status Code:200 OK <br/>
Remote Address:IP:80 <br/>
Response Headers <br/>
Access-Control-Allow-Credentials:true <br/>
Access-Control-Allow-Origin:http://SERVER <br/>
Cache-Control:no-cache, must-revalidate, max-age=0 <br/>
Connection:keep-alive <br/>
Content-Type:application/json; charset=UTF-8 <br/>
Date:Tue, 26 Apr 2016 06:44:17 GMT <br/>
Expires:Wed, 11 Jan 1984 05:00:00 GMT <br/>
Pragma:no-cache <br/>
Server:nginx/1.9.3 (Ubuntu) <br/>
Transfer-Encoding:chunked <br/>
X-Content-Type-Options:nosniff <br/>
X-Frame-Options:SAMEORIGIN <br/>
X-Robots-Tag:noindex <br/>
Request Headers <br/>
Accept:application/json, text/javascript, */*; q=0.01 <br/>
Accept-Encoding:gzip, deflate <br/>
Accept-Language:en-US,en;q=0.8,pl;q=0.6 <br/>
Connection:keep-alive <br/>
Content-Length:107 <br/>
Content-Type:application/x-www-form-urlencoded; charset=UTF-8 <br/>
Cookie:REDACTED ;) <br/>
Host:SERVER <br/>
Origin:http://SERVER <br/>
Referer:http://SERWER/wp-admin/media-new.php <br/>
User-Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.86 Safari/537.36 <br/>
X-Requested-With:XMLHttpRequest <br/>
Form Data <br/>
data[wp-auth-check]:true <br/>
interval:60 <br/>
_nonce:32b36eaa97 <br/>
action:heartbeat <br/>
screen_id:media <br/>
has_focus:false <br/>
Nginx Configuration:
location / {
index index.php index.html index.htm;
try_files $uri $uri/ /index.php?$args;
}
location ~ \.php$ {
include snippets/fastcgi-php.conf;
fastcgi_pass unix:/var/run/php5-fpm.sock;
}