alexkingorg

<?php

/**
 * Change the brightness of the passed in color
 *
 * $diff should be negative to go darker, positive to go lighter and
 * is subtracted from the decimal (0-255) value of the color
 * 
 * @param string $hex color to be modified
 * @param string $diff amount to change the color

bradyvercher

<?php
function sort_posts( $posts, $orderby, $order = 'ASC', $unique = true ) {
	if ( ! is_array( $posts ) ) {
		return false;
	}
	
	usort( $posts, array( new Sort_Posts( $orderby, $order ), 'sort' ) );
	
	// use post ids as the array keys
	if ( $unique && count( $posts ) ) {

jkudish

<?php

/**
 * keeps a user always logged in
 * don't use this on a production site, ever!
 */

add_action('init', 'auto_login');
add_action('admin_init', 'auto_login');
function auto_login() {

luetkemj

// This gist is now maintained on github at https://github.com/luetkemj/wp-query-ref

<?php
/**
* WordPress Query Comprehensive Reference
* Compiled by luetkemj - luetkemj.github.io
*
* CODEX: http://codex.wordpress.org/Class_Reference/WP_Query#Parameters
* Source: https://core.trac.wordpress.org/browser/tags/4.9.4/src/wp-includes/query.php
*/

msng

<?php
function strpos_array($haystack, $needles, $offset = 0) {
	if (is_array($needles)) {
		foreach ($needles as $needle) {
			$pos = strpos_array($haystack, $needle);
			if ($pos !== false) {
				return $pos;
			}
		}
		return false;

zumwalt

function is_tree( $pid ) {      // $pid = The ID of the page we're looking for pages underneath
    global $post;               // load details about this page

    if ( is_page($pid) )
        return true;            // we're at the page or at a sub page

    $anc = get_post_ancestors( $post->ID );
    foreach ( $anc as $ancestor ) {
        if( is_page() && $ancestor == $pid ) {
            return true;

stephenharris

<?php
/**
 * Lightens/darkens a given colour (hex format), returning the altered colour in hex format.7
 * @param str $hex Colour as hexadecimal (with or without hash);
 * @percent float $percent Decimal ( 0.2 = lighten by 20%(), -0.4 = darken by 40%() )
 * @return str Lightened/Darkend colour as hexadecimal (with hash);
 */
function color_luminance( $hex, $percent ) {
	
	// validate hex string

JiveDig

// Remove titles from pages only
add_action('get_header', 'child_remove_page_titles');
function child_remove_page_titles() {
  $pages=array();
  if (is_page($pages)) {
    remove_action('genesis_entry_header', 'genesis_do_post_title');
  }
}

JiveDig

/**
 * Breaks the posts into 4 columns
 * @link http://www.billerickson.net/code/grid-loop-using-post-class
 */
add_filter( 'post_class', 'tsm_archive_post_class' );
function tsm_archive_post_class( $classes ) {
	global $wp_query; 
	// Keeps columns out of secondary loops ie: Genesis Featured Post widgets
	if( ! $wp_query->is_main_query() ) {
		return $classes;

JiveDig

// Set the number of posts per page
add_filter( 'pre_get_posts', 'be_archive_query' );
// @link http://www.billerickson.net/customize-the-wordpress-query/
function be_archive_query( $query ) {
	if( $query->is_main_query() && $query->is_archive() ) {
		$query->set( 'posts_per_page', 12 );
	}
}

// OR