Pay attention and do not use it improperly. The is_admin() function is NOT to check is the current user is an administrator! I saw this error many times and probably I did it myself years ago. The is_admin() function provided by WordPress as core function is not to check if Read more…
Is it possible to dynamically “disable” a plugin with a condition determined by some visitor attributes? Like the presence of a cookie? Of course without changing the plugin code! Recently I faced this problem: a rather weight plugin that integrates a chat (and more) in a WP site was make Read more…
WordPress fires and activation action when a plugin is activated. Or at least it should. To be notified of its activation, a plugin can register itself to that even, using the register_activation_hook() function. There are some background concept that must be clear before start to use that action. It is Read more…
Sometime you really need to remove the administration notices injected by other themes or plugins from your theme or plugin administration pages. If I can understand that admin notices could be very useful, injecting them indifferently in every admin page could lead to conflicts, specially if injected in other plugin/theme Read more…
If you don’t use the new WordPress blocks, you should avoid to load the block style CSS on your page to optimize the page load speed. Here the three lines you need:
|
1 2 3 |
add_action('wp_print_styles', function () { wp_dequeue_style('wp-block-library'); }, 100); |
Adding the action with priority 100, it will be executed after the style has been enqueued by Read more…
Never needed to change the standard (2 week) login cookie expiration time of WordPress? Here the 3 line of code you need.
|
1 2 3 |
add_filter('auth_cookie_expiration', function () { return 365 * 2 * DAY_IN_SECONDS; }); |
You can add those line in the functions.php file of your theme. DAY_IN_SECONDS is a constant defined by WordPress and represents the number of seconds in a Read more…
Shortly: I needed to change the “sender” of all emails from a blog so every delivery error would have been sent to a specific mailbox. Without installing plugins, the three lines of code needed are:
|
1 2 3 |
add_action('phpmailer_init', function (PHPMailer $mailer) { $mailer->Sender = 'bounce@domain.com'; }, 1000); |
They can be added in the theme functions.php file for example, even if I Read more…
This error happens when there are tables on your WordPress installation created with different collations. Here we’re going why that happens. WordPress has a built in feature: if you do not explicitly declare the database collation (how a database should compare strings) it makes some thoughts about it and possible Read more…
Dear friends, even in the second part of 2018 your generosity has been huge. You all donated 260 euro which, today, have been donated to humanitarian initiative through Medecins Sans Frontieres and Save the Children. Hope the best for you and your families. Hope more and more children can enjoy Read more…
If you need to set to noindex the categories (or generally archives) pages (except the first one), you can add this little snippet of code changing the behavior of WordPress SEO. WordPress SEO has a filter triggered just after the meta robots value has been computed. Intercepting this filter and Read more…