The internal WordPress cron is dependent upon site visitors to fire, unlike linux or unix cron which is fired at specific times. Generally speaking, if you have regular and frequent visitors to your website WordPress cron will run your defined task. But if you don’t have that traffic WordPress doesn’t fire the events. If your … Read more
Inspect your Schedules The best way to learn coding is to turn debug on and simply inspect your output. If you want to dig deeper, then you often need a custom tool that allows you to inspect the result fast and nicely, readable formatted. I wrote a plugin for some other answer, that helps you … Read more
You shouldn’t call wp_clear_scheduled_hook on every page load, because then you’re always restarting your wp-cron shcedule, with your current setup. Additionally this call: wp_clear_scheduled_hook( ‘le_do_this’ ); doesn’t make any difference, since le_do_this isn’t a hook name in your setup. You could try for example this test plugin: <?php /** * Plugin Name: Daily WP-Cron * … Read more
You’re missing one key component. Add this to your wp-config.php: define( ‘DISABLE_WP_CRON’, true ); Here are some other helpful constants for your wp-config.php: https://gist.github.com/MikeNGarrett/e20d77ca8ba4ae62adf5
Yes, wp_doing_cron will return true if the current request is a WP Cron request, or if it’s triggered from WP CLI https://developer.wordpress.org/reference/functions/wp_doing_cron/
I don’t think you need to worry about this running flag or unscheduling. Since you are scheduling a one-time job that will run immediately there’s no reason to unschedule it. You just need to check if a job with that name is scheduled or not and if it is (even if it is running at … Read more
It depends. The initial page load trigger should not but performance may degrade as visitors browse your site until the Cron job is finished. Is the scheduled event you plan on using PHP or DB intensive? How often will it run? Here’s how it works The scheduled event (aka Cron job) will be initialized once … Read more
I just found the answer to my question over on stackoverflow…and thought I’d copy the answer over here for future reference since WP folks are probably more likely to look here. When WP_Cron fires a scheduled job it does so via a call to wp_remote_post(). The trick in that answer is to hook into cron_request … Read more
You can specify when the first execution will be performed using the first parameter of the wp_schedule_event function. So, according to your code, the first execution will be immediately and the following one will be in 7,884,000 seconds (which is around 91.25 days). I do not recommend this approach because the WP cron scheduled periods … Read more
If you want a quick programmatic way of looping through everything you have in the cron row inside wp_options and you have access to the site’s database directly (either in a local development environment or on a webhost), you can run something like this via the command line: mysql $YOUR_DB_NAME -e “SELECT option_value FROM wp_options … Read more