How to use get_post_meta()

get_post_meta() is a WordPress function used to retrieve the value of a custom field for a specific post. Here’s how to use it:

  1. Retrieve the custom field value for a specific post:
$custom_field_value = get_post_meta( $post_id, 'custom_field_key', true );

Replace $post_id with the ID of the post you want to retrieve the custom field value for, and 'custom_field_key' with the key of the custom field. The last parameter, true, means that only a single value should be returned, rather than an array of values.

  1. Display the custom field value:
echo $custom_field_value;

This code displays the value of the custom field retrieved in step 1.

You can also use get_post_meta() to retrieve all custom fields for a specific post:

$custom_fields = get_post_meta( $post_id );

This code retrieves an array of all custom fields for the post with ID $post_id.

You can use get_post_meta() outside of the loop, but you will need to specify the post ID. If you don’t specify a post ID, the function will use the current post in the loop.