wp_is_post_autosave( int|WP_Post $post )

Determines if the specified post is an autosave.

Parameters

$post

(Required) Post ID or post object.

Return

(false|int) False if not a revision, ID of autosave's parent otherwise

Source

File: wp-includes/revision.php 

function wp_is_post_autosave( $post ) {
	if ( !$post = wp_get_post_revision( $post ) )
		return false;

	if ( false !== strpos( $post->post_name, "{$post->post_parent}-autosave" ) )
		return (int) $post->post_parent;

	return false;
}

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Related

Used By

Used By
Used By Description
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::wp_getRevisions()

Retrieve revisions for a specific post.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::wp_restoreRevision()

Restore a post revision
wp-includes/post-template.php: wp_post_revision_title()

Retrieve formatted date timestamp of a revision (linked to that revisions’s page).
wp-includes/post-template.php: wp_post_revision_title_expanded()

Retrieve formatted date timestamp of a revision (linked to that revisions’s page).
wp-includes/post-template.php: wp_list_post_revisions()

Display list of a post’s revisions.
wp-admin/includes/revision.php: wp_prepare_revisions_for_js()

Prepare revisions for JavaScript.
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Changelog

Changelog
Version Description
WP-2.6.0 Introduced.