wp_is_post_autosave() WP 1.0

Determines if the specified post is an autosave.

No Hooks.

Return

false/Int. False if not a revision, ID of autosave's parent otherwise

Usage

wp_is_post_autosave( $post );

$post(int/WP_Post) (required)

Post ID or post object.

Code of wp is post autosave: wp-includes/revision.php ^{WP 5.2.2}

<?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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