Let’s say you want to server-side detect whether a user’s browser is the dreaded IE6 using PHP (instead of on the client side, which is usually done with conditional comments). Here’s how.
PHP
How to automatically add tags to WordPress posts
In WordPress, if you need to automatically add tags to a post via a PHP script, the best way to do it is via the wp_set_object_terms() function. There is no handy “wp_insert_tag()” function, or something like that, so look no further.
How to automatically login a user into WordPress
When developing for WordPress, sometimes you may need to create a PHP script that will automatically login a user so you can enable user functions. The WorpPress function wp_singon() is the perfect solution.
How to get the ID of the last insert post in WordPress
When programming for WordPress, sometimes you may need to get the ID of the last post that was inserted to the database (à la MySQL’s ‘LAST_INSERT_ID’). Here’s the thing: the wp_insert_post() function returns the newly inserted post’s ID, so you can use it to perform more stuff on the post right away, without having to mess around with any SQL commands to retrieve it. Clever, huh?