How to enable the WordPress maintenance mode

WordPress has a built-in maintenance feature. By adding a ".maintenance" file to your website's root directory with the piece of code WordPress will trigger its maintenance mode. <?php $upgrading = time(); ?> This file is also used during the auto-update process. By using the maintenance mode, users will not see any error messages while you're …

Limit the number of post revisions in WordPress

For each saved edit made to a post or a page, WordPress saves a revision in the database. This can really increase the size of your database when your working with a lot of posts or pages. WordPress has a built-in revisions option which you can set in the wp-config.php file. You can also disable …

Remove SEO title, keywords, description columns from the post and pages list when using the all-in-one-seo-pack WordPress plugin

I always use the all-in-one-seo-pack for WordPress websites which is a great plugin for SEO purposes. The only drawback is that it screws up the list of pages or posts in your WordPress admin section by adding three extra colums to it (SEO title, SEO keywords, SEO description). To remove these colums go to the …

Remove the ‘screen options’ and ‘Help’ from the WordPress admin section

Removing the 'Screen options' tab You can remove the 'screen options' tab completely from your WordPress admin area by adding this to your theme's function.php file // Hide 'Screen Options' tab function remove_screen_options_tab() { return false; } add_filter('screen_options_show_screen', 'remove_screen_options_tab'); Removing the 'Help' tab You can also remove the 'Help' tab from the admin area in …

Change the length of the excerpt in WordPress

When you want a custom length of your excerpt add this to your theme's function.php file and you can specify the number of words used in the excerpt function new_excerpt_length($length) { return 30; } add_filter('excerpt_length', 'new_excerpt_length');

Get the Youtube or Vimeo image still from the video URL with PHP

This is a handy function to retrieve the youtube of vimeo still from the video URL. To use the function you just need to pass the $url parameter to the function. The $size parameter is optional and will by default return the large image. If you pass "thumb" as size it will return a small …

Change login session time for PHPMyAdmin

To change the time when your login session gets expired go to the root of your phpmyadmin folder and find the file config.inc.php Now search for this variable -> $cfg['LoginCookieValidity']  In my example I changed it to 5 hours. You should also check the session.gc_maxlifetime in you php.ini file. The lowest value of those two will be in …