get_field() return null on live server, but on development server works fine

• icen

• October 10, 2020 at 4:30 am

Hello,

I spent whole day trying to solve this…

I have development server, and ACF works without any problem.

When I migrated site to a new live server, ACF values are not showing on frontend of website.

Tried everything I can, like:

ini_set('display_errors', 1); // just to have
echo get_the_ID();
global $post;
var_dump($post);
echo '<hr>';
echo get_field('zvanje');
echo '<hr>';
print_r($fields);
echo '<hr>';
print_r($iceCustomFields);
echo '<hr>';
echo ($iceCustomFields['zvanje']);
echo '<hr>';
echo get_field('zvanje', get_the_ID());
echo '<hr>';
the_field('titula');
echo '<hr>';
var_dump(get_field_objects());

… but all of that returns nothing (empty), except last two that returns:

bool(false).

Also, next two lines are returing NULL:

var_dump($iceCustomFields->zvanje);
var_dump($iceCustomFields['zvanje']);

My custom fields are “zvanje” and “titula” (and few more, but this is just an example).

I was thinking, are there some PHP requirements I missing on new server? Or is it something with PHP version (but I tried 7.1, 7.2, 7.3 and 7.4).

Please if you can help. Don’t know how to solve this anymore…

• icen

• October 10, 2020 at 4:32 am

Forget to add at the beginning of my code example:

$iceCustomFields = get_fields();

Sorry and thank you!

• John Huebner

• October 10, 2020 at 5:35 am

How did you move the content from the dev to live servers?

What types of fields are not showing content?

• icen

• October 10, 2020 at 6:39 pm

Migration – as usual – export db into file, change all occurrences of old domain to new one. Everything else works fine without problem. I have lot’s of experience in WP.

It’s not the first time I’m doing this, that’s also why I’m bit confused.

Two years ago I migrated the same WP instance from same development server, to almost same live server. Difference between those two live servers is in MySQL – on first (where it works, installation two years ago) is 5.6.49 and on second (where I have a problem) is 5.0.12.

But, all in all, it looks like those ACF variables are not “registered” or something like that… looks like they are not “visible” or accessible on front end. Can I help myself by adding something in functions.php file or something like that?

Thank you in advance!

• John Huebner

• October 11, 2020 at 1:07 am

I don’t know what the problem is yet. That’s why I asked what kind of fields are not showing the correct values. Is it all fields or just some fields?

For example, a link field stores a serialized array. Altering the value of the link in a text file and then importing that into the DB will likely break that field. Serialized values need special handling. I generally import the db directly and then use this tool to make updates https://interconnectit.com/search-and-replace-for-wordpress-databases/