khromov

<?php
add_filter('wpinstant_subresources', function($subresources) {

    //Will add link rel="subresource" for /style.css and /js/main.js in the theme folder.
    $subresources[] = get_stylesheet_directory_uri() . '/style.css';
    $subresources[] = get_stylesheet_directory_uri() . '/js/main.js';

    return $subresources;
});

khromov

<?php
add_filter('wpinstant_prerendered_urls', function($urls) {
	if ( is_home() ) {
		$args = array(
				'meta_key'=> 'prefetch_on_home',
        'meta_value' => true
     );
     $query = new WP_Query( $args );
     if ( $query->have_posts() ) {
		foreach( $query->posts as $post ) {

khromov

<?php
add_filter('wpinstant_prerendered_urls', function($urls) {
	if ( is_front_page() ) {
		$posts = array( 1,2,3);
		foreach($posts as $post) {
			$permalink = get_permalink( $post );
			if($permalink) {
				$urls[] = $permalink;
			}
		}

khromov

<?php
/**
 * Function that gets  recent posts
 */
function get_recent_posts() {

	//No cache
	if(!wp_cache_get('my_complex_query_result')) {

		//This is the super slow query.

khromov

So how does WP CRON work? Whenever an admin user loads WordPress, WP checks whether any CRON jobs need to run (they are scheduled by timestamp), and if they do, WordPress makes a secondary request to itself using the spawn_cron() function. This secondary page load will load /wp-cron.php, which in turn loads another full copy of WP.

Now we're in the secondary CRON request, you can see this as being run asynchronously with the request that spawned it - spawn_cron() uses a cute little trick and sets a very low timeout value when calling the secondary CRON request, the result being both requests run in parallel, see here: https://github.com/WordPress/WordPress/blob/2f3e567f44e7bc335b6795713ae970b4f37117cd/wp-includes/cron.php#L297

khromov

#!/bin/bash

#Update repo
apt-get update

#Generate mysql password
MYSQL_ROOT_PASSWORD=$(tr -cd '[:alnum:]' < /dev/urandom | fold -w8 | head -n1)

#Set the password so you don't have to enter it during installation
debconf-set-selections <<< "mysql-server mysql-server/root_password password $MYSQL_ROOT_PASSWORD"

khromov

<?php
/*
Plugin Name: ACF Local JSON plugin
Plugin URI: 
Description: Put this file in a plugin folder and create an /acf directory inside the plugin, ie: /my-plugin/acf
Author: khromov
Version: 0.1
*/

//Change ACF Local JSON save location to /acf folder inside this plugin

khromov

$post_id = 1; //Post ID
$post_taxonomies = get_field('assigned-taxonomies', $post_id);

$args = array(
	'post_type' => 'post',
	'tax_query' => array(
		array(
			'taxonomy' => 'your-taxonomy',
			'field'    => 'term_id',
			'terms'    => $post_taxonomies

khromov

<?php
class Plugin
{
    /**
     * This will let a CPT with the slug 'story' be used without a base slug, ie:
     * Before:
     * /story/hello
     * 
     * After:
     * /hello

khromov

<?php
/* Activation hook */
register_activation_hook( __FILE__, function() {

	if(!function_exists('\get_field')) {
		deactivate_plugins(__FILE__);
		wp_die("Please enable Advanced Custom Fields before activating this plugin.");
	}
});