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Private Access Private Access
This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness.
Summery Summery
Determines which fields of posts are to be saved in revisions.
Syntax Syntax
Parameters Parameters
- $post
-
(Optional) A post array or a WP_Post object being processed for insertion as a post revision.
Default value: array()
- $deprecated
-
(Optional) Not used.
Default value: false
Return Return
(array) Array of fields that can be versioned.
Source Source
File: wp-includes/revision.php
if ( ! is_array( $post ) ) {
$post = get_post( $post, ARRAY_A );
}
if ( is_null( $fields ) ) {
// Allow these to be versioned.
$fields = array(
'post_title' => __( 'Title' ),
'post_content' => __( 'Content' ),
'post_excerpt' => __( 'Excerpt' ),
);
}
/**
* Filters the list of fields saved in post revisions.
*
* Included by default: 'post_title', 'post_content' and 'post_excerpt'.
*
* Disallowed fields: 'ID', 'post_name', 'post_parent', 'post_date',
* 'post_date_gmt', 'post_status', 'post_type', 'comment_count',
* and 'post_author'.
*
* @since 2.6.0
* @since 4.5.0 The `$post` parameter was added.
*
* @param array $fields List of fields to revision. Contains 'post_title',
* 'post_content', and 'post_excerpt' by default.
* @param array $post A post array being processed for insertion as a post revision.
*/
$fields = apply_filters( '_wp_post_revision_fields', $fields, $post );
// WP uses these internally either in versioning or elsewhere - they cannot be versioned.
foreach ( array( 'ID', 'post_name', 'post_parent', 'post_date', 'post_date_gmt', 'post_status', 'post_type', 'comment_count', 'post_author' ) as $protect ) {
unset( $fields[ $protect ] );
}
return $fields;
}
/**
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Changelog Changelog
| Version | Description |
|---|---|
| 4.5.0 | The optional $autosave parameter was deprecated and renamed to $deprecated. |
| 2.6.0 | Introduced. |