How to pass variable to the_field?

• Jason_86

• August 13, 2018 at 1:09 am

Hi,

Basically, I want to do this:

the_field(the_field('field_name');

In reality, I’m trying it like this:

$variable = the_field('field_name'); 
the_field($variable);

The reason:

I’ve created a CPT with about 20 custom fields. I want to pull the value of a single field across every post onto a new CPT post. Easy practical example:

What I have (by way of example):

iPhone 5 (‘mobile’ custom post type)

• CPU (custom field)
• Resolution (custom field)

iPhone 6 (‘mobile’ custom post type)

• CPU (custom field)
• Resolution (custom field)

What I want to do:

CPU (‘mobile’ custom post type and page template)

• iPhone 5
• iPhone 6

And using the same custom field values.

I created a custom field (‘argument’) for the latter post, in which I specify the name of the field as an argument I want to push to the_field in the page template.

• John Huebner

• August 13, 2018 at 1:24 am

First the_field() is only used to display fields. To use the value of the field somewhere else you need to use get_field()

You also need the post ID of the post where that other field appears. Basically, what you need is a post object field that returns the ID and the field name you want to put from that page.

Then, in long form

// get the field and post ID from this post
$field_name = get_field('field name of field containing field name');
$post_id = get_field('field name of post object field that has the above field');

// show the value from that other post
the_field($field_name, $post_id);

• Jason_86

• August 13, 2018 at 6:55 am

Thanks for this, John.