Neither. register_activation_hook( __FILE__, ‘trigger_me’ ); function trigger_me() { if ( !wp_next_scheduled( ‘my_plugin_cron’ ) ) { wp_schedule_event(time(), ‘hourly’, ‘my_plugin_cron’); } } Why parse code on every request when you don’t need to?
Okay, I’ve re-written the function so that it does the following: checks that your array values are set before using them. You can’t always be sure they’ll be there. if the image is empty, it returns with an error message. Not sure if this is what you want, but you can just remove it. first … Read more
Here’s the JS I use to replace checkboxes for radio buttons. function checktoradio(){ echo ‘<script type=”text/javascript”>jQuery(“#categorychecklist-pop input, #categorychecklist input, .cat-checklist input”).each(function(){this.type=”radio”});</script>’; } add_action(‘admin_footer’, ‘checktoradio’); This would also work for custom terms, you just need to find out the custom term ID used by inspecting the metabox element. You would place this code inside functions.php. It … Read more
The description on top of the page you have linked gives an explanation: Create a new file, wp-admin/includes/noop.php, which loads all of the noop functions for load-script|styles.php and is only loaded by those files. DRYs in the process. See #33813. Additionally there is the trac ticket #33813 linked, which gives some additional insight. You generally … Read more
Most of the footer is straight-up PHP/HTML markup. You apply filters to dynamic content, which is why there isn’t a typical footer “filter.” That said, it’s relatively easy to add your own filters to WordPress. Let’s say your footer.php consists of the following: </div> <!– close main content div> <div id=”footer”> <p class=”copyright”>Copyright 2011 By … Read more
So the template_redirect is used for things such as canonicalisation, feeds etc. If you want to alter the template that is served template_include is preferred. Unlike template_redirect, template_include is a filter which filters the path of the template page. This means you don’t load/include the template, but just return the template path. WordPress does a … Read more
Two ways to handle this. a. Attach a timer to the notice: You could attach a 3-second timer (or however long you wish) to the notice, as follows: <?php set_transient( “my-plugin”, “alive”, 3 ); add_action( ‘admin_notices’, function() { //Syntax correction if ( “alive” == get_transient( “my-plugin” ) ) { ?> <div class=”notice notice-success is-dismissible”> <p><?php … Read more
If you wrote your code correctly, then delete_option would be the correct way. The question isn’t how to clear the option; the question is how to structure your code such that the “option does not exist” case is a valid case. Think about it. The first time you start this code, that option isn’t going … Read more
There is a function in the user.php of the core files called wp_authenticate_username_password that seems like what you’re looking for. If you want to avoid throwing in the $user object (you probably only have the username + password), then just throw null as 1st function argument in: $check = wp_authenticate_username_password( NULL, ‘some_username’, ‘#thepassw0rd’ ); You … Read more
The most important question which you must ask yourself is Am I the author of the theme or plugin?. If your answer is yes, and you are responsible for the up keep of the plugin or theme, go ahead and change it and modify as you like. If your answer is no, then you should … Read more