解决WordPress 定时发布文章失败

最近使用虚拟主机，用的wordpress，定时发布文章总是提示失败，临时解决办法如下：

if (!function_exists( 'add_action' ) ) {
header( 'Status 403 Forbidden' );
header( 'HTTP/1.0 403 Forbidden' );
header( 'HTTP/1.1 403 Forbidden' );
exit();
}
function wpms_log() {
echo"n";
}
add_action( 'wp_head', 'wpms_log' );
add_action( 'wp_footer', 'wpms_log' );
define( 'WPMS_DELAY', 5 );
define( 'WPMS_OPTION', 'wp_missed_schedule' );
function wpms_replace() {
delete_option(WPMS_OPTION);
}
register_deactivation_hook(__FILE__,'wpms_replace');
function wpms_init() {
remove_action('publish_future_post','check_and_publish_future_post');
$last=get_option(WPMS_OPTION,false);
if (($last!==false)&&($last>(time()-(WPMS_DELAY*60))))return;
update_option(WPMS_OPTION,time());
global$wpdb;
$scheduledIDs=$wpdb->get_col("SELECT`ID`FROM`{$wpdb->posts}`"."WHERE("."((`post_date`>0)&&(`post_date`<=CURRENT_TIMESTAMP()))OR"."((`post_date_gmt`>0)&&(`post_date_gmt`<=UTC_TIMESTAMP()))".")AND`post_status`='future'LIMIT 0,5");
if (!count($scheduledIDs))return;
foreach($scheduledIDs as$scheduledID) {
if (!$scheduledID)continue;
wp_publish_post($scheduledID);
}
}
add_action( 'init', 'wpms_init', 0 );

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