我正在尝试编写一个函数，由cron计划在每晚午夜运行，该函数将从自定义字段的整数值中减去1。它将基本上起到30天倒计时的作用。
问题是，它不起作用，我撞到墙了/我被难住了。自定义字段的值，wpcf-engine-days-to-go 字段保持默认值30。我已经更新了代码并尝试使用WP_Query 而不是get_posts().
add_action( \'engineCronHook\', \'engineDaysToGoCountdown\' );
if( !wp_next_scheduled( \'engineCronHook\' ) ) {
wp_schedule_event( time(), \'daily\', \'engineCronHook\' );
}
// Countdown function
function engineDaysToGoCountdown(){
// Set the post args
$args = array(
\'post_type\' => \'engine\',
\'posts_per_page\' => -1,
\'post_status\' => \'publish\'
);
//Create enginePosts object
$enginePosts = new WP_Query($args);
if($enginePosts->have_posts()){
while ( $enginePosts->have_posts()) {
$engine->the_post();
// This is the part that I\'d like to rule-out
$daysLeft = genesis_get_custom_field(\'wpcf-engine-days-to-go\');
/* And this section below too. I\'m not sure if the cron job isn\'t firing, but the database isn\'t updated. The form creates a post with \'30\' as the default value of the custom field, and when I run the cron job, it remains 30 in the database */
update_post_meta(the_id(),\'wcf-engine-days-to-go\',--$daysLeft);
}
}
}
SO网友:bhavesh vala
使用此处设置类型方法：
add_action(\'init\',\'engineCreateRecurringSchedule\');
add_action(\'engineRecurringCronJob\',\'engineDaysToGoUpdate\');
function engineDaysToGoUpdate(){
// Arguments to get published posts with \'engine\' post type.
$engineDaysToGoArgs = get_posts( array (
\'post_status\' => \'publish\'
\'posts_per_page\' => -1,
\'post_type\' => \'engine\') );
// Calling the value of custom field.
$engineDaysToGo = genesis_get_custom_field(\'wpcf-engine-days-to-go\');
settype($engineDaysToGo, "integer");
// Subtracting 1 from the value.
$updatedEngineDaysToGo = $engineDaysToGo--;
// Updating the value of the custom field.
for each ($engineDaysToGoArgs as $key => $value) {
// Inserting the updated value of the custom field.
$update_post_meta($engineDaysToGoArgs, $engineDaysToGo, $updatedEngineDaysToGo,);
}}
function engineCreateRecurringSchedule(){
// Check to see if event is scheduled before.
if(!wp_next_scheduled(\'engineRecurringCronJob\'))
//Schedule to run at midnight every night.
wp_schedule_event (time(), \'daily\', \'engineRecurringCronJob\');
}
