Where are custom field values stored in the database

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I am using the advanced custom fields plugin for posts. I would like to know where custom fields are stored. I checked the wp_posts table. However, I could not find the posts with custom fields. I would like to know in which table are they stored in database.

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2 comments

  1. From the codex for custom fields:

    The PostMeta information is stored in a new table, $wpdb->postmeta. This table has four fields:

    ‘meta_id’ – A unique id for each entry.
    ‘post_id’ – The ID of the post for this metadata.
    ‘meta_key’ – The name of the ‘key’.
    ‘meta_value’ – The value associated with the key.

    This of course assumings that ACF uses the default WordPress stucture and not a custom database.

  2. How do we know which ACF field is unused vs used?

    This info for a custom field was listed in the “meta_value” field does this mean that there is associated content? It was a relationship field in ACF

    a:2:{i:0;s:5:”11637″;i:1;s:5:”11463″;}

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