TL;DR; Enqueue Using external stylesheet PRO: All your styles are in one spot. PRO: Reduces web page coding. PRO: Easier to maintain the plugin. PRO: Can use hooks to alter location of the file. PRO: Can use hooks to unqueue the file. PRO: Can use minify styles automatically. CON: Might add extra HTTP request (can … Read more
The API you offer in a plugin or a theme depends on the logic of that specific code. There is probably no guide that applies to all situations. I am a contributor for multiple plugins with APIs, and what I have learned so far is: Do not offer an API until you really know how … Read more
Here are some random thoughts on this: Question #1 How much money did we send to grandma? For 100 page loads, we sent her 100 x $1 = $100. Here we actually mean 100 x do_action( ‘init’ ) calls. It didn’t matter that we added it twice with: add_action( ‘init’,’send_money_to_grandma’ ); add_action( ‘init’,’send_money_to_grandma’ ); because … Read more
1. Write with localization in mind Don’t use echo or print() to produce text output, instead use the WordPress functions __() and _e(): /** Not localization friendly */ echo “Welcome to my plugin”; // OR print(“Welcome to my plugin”); /** Localization friendly */ _e(‘Welcome to my plugin’, ‘my-plugin’); // OR $my_text = __(‘Welcome to my … Read more
wp_mail() is a pluggable function: It can be replaced by plugins. That’s useful in cases where the regular mail() doesn’t work (good enough), for example when you need extra authentication details. Example: WP Mail SMTP wp_mail() uses PHPMailer by default, a sophisticated PHP class which offers a lot of useful preprocessing and workarounds for cases … Read more
I found a solution as an automated service over at http://wpseek.com/pluginfilecheck/ It’s does exactly, what was asked for including the generation of list of used functions and giving a suggestion for the Plugin-Header comments.
Here’s a way to test the core patch #33300.6 by Andew Ozz, through a test plugin in WP 4.5.2, to try out the text pattern filter. Demo Here’s a strikethrough example using ~ $init[‘wpsetextpattern_inline_patterns’] = ‘{ strong: { start: “*”, end: “*”, format: “bold” }, strong2: { start: “**”, end: “**”, format: “bold” }, em: … Read more
As a rule of thumb, you should use a POST request for most actions, to make sure they are not executed by accident. But it is also a good practice to redirect to a normal page after a POST request, to prevent duplicate execution when the user refreshes the page. So the flow is like … Read more
Use wp_register_style and wp_enqueue_style to add the stylesheet. DO NOT simply add a stylesheet link to wp_head. Queuing styles allows other plugins or themes to modify the stylesheet if necessary. Your stylesheet can be a .php file: wp_register_style(‘myStyleSheet’, ‘my-stylesheet.php’); wp_enqueue_style( ‘myStyleSheet’); my-stylesheet.php would look like this: <?php // We’ll be outputting CSS header(‘Content-type: text/css’); include(‘my-plugin-data.php’); … Read more
Remove what you add First, please make sure that everything you add on activation also gets removed on uninstall. I got a short tutorial including example code for you. Test with a small plugin: I really don’t know much about MU, but as far as I can tell, the roles object is global across all … Read more