从$ _POST数据创建指定帖子的自动保存数据。

原型

wp_create_post_autosave( mixed $post_data )

参数

$post_data (mixed) (Required) 包含post数据或int post ID的关联数组。

返回值

(mixed)  自动保存修订ID。

源文件

路径:wp-admin/includes/post.php

<?php
...
function wp_create_post_autosave( $post_data ) {
	if ( is_numeric( $post_data ) ) {
		$post_id = $post_data;
		$post_data = $_POST;
	} else {
		$post_id = (int) $post_data['post_ID'];
	}
	$post_data = _wp_translate_postdata( true, $post_data );
	if ( is_wp_error( $post_data ) )
		return $post_data;
	$post_author = get_current_user_id();
	// Store one autosave per author. If there is already an autosave, overwrite it.
	if ( $old_autosave = wp_get_post_autosave( $post_id, $post_author ) ) {
		$new_autosave = _wp_post_revision_data( $post_data, true );
		$new_autosave['ID'] = $old_autosave->ID;
		$new_autosave['post_author'] = $post_author;
		// If the new autosave has the same content as the post, delete the autosave.
		$post = get_post( $post_id );
		$autosave_is_different = false;
		foreach ( array_intersect( array_keys( $new_autosave ), array_keys( _wp_post_revision_fields( $post ) ) ) as $field ) {
			if ( normalize_whitespace( $new_autosave[ $field ] ) != normalize_whitespace( $post->$field ) ) {
				$autosave_is_different = true;
				break;
			}
		}
		if ( ! $autosave_is_different ) {
			wp_delete_post_revision( $old_autosave->ID );
			return 0;
		}
		/**
		 * Fires before an autosave is stored.
		 *
		 * @since 4.1.0
		 *
		 * @param array $new_autosave Post array - the autosave that is about to be saved.
		 */
		do_action( 'wp_creating_autosave', $new_autosave );
		return wp_update_post( $new_autosave );
	}
	// _wp_put_post_revision() expects unescaped.
	$post_data = wp_unslash( $post_data );
	// Otherwise create the new autosave as a special post revision
	return _wp_put_post_revision( $post_data, true );
}
...
?>

其他

英文文档:https://developer.wordpress.org/reference/functions/wp_create_post_autosave/