Jany-M

<?php

// Duplicate function
function duplicate_content(){
	global $wpdb;
	if (! ( isset( $_GET['post']) || isset( $_POST['post'])  || ( isset($_REQUEST['action']) && 'duplicate_content' == $_REQUEST['action'] ) ) ) {
		wp_die('No post to duplicate has been supplied!');
	}
	
	// Get original ID

Jany-M

<?php
    // Get a user Access Token (or Page Token if you're the page admin)
    // https://developers.facebook.com/tools/explorer/145634995501895/
    
    function get_fb_likes($what) {
	$token = 'your_token_here';
	//delete_transient('cached_fb');
	if(false === ( $cached_fb_results = get_transient( 'cached_fb' ))) {
		$json_url = 'https://graph.facebook.com/v2.5/'.$what.'?fields=likes&access_token='.$token;
		$json = file_get_contents($json_url);

Jany-M

<?php

// Flush Cache from Admin bar
function flush_memcache_button() {
	global $wp_admin_bar;

	// If User isnt even logged in or if admin bar is disabled
	if ( !is_user_logged_in() || !is_admin_bar_showing() )
		return false;

Jany-M

<?php

// This will display Gists as if they were real WP posts, so you can display them mixed with real ones too
// This will NOT add the Gists as real posts in your DB, you won't see them in your backend

/* --------------------------------------
|
|	Real Posts Loop
|
|---------------------------------------*/

Jany-M

<?php

// Change & Save New Permalink if post title was changed
function update_slug_on_edit( $data, $postarr ) {
	global $post;
	$id = $post->ID;
	
	$status = $post->post_status;
	$cpt = get_post_type($id);
	$parent = $post->post_parent;

Jany-M

<?php 

// Requires the duplicate_content() function
// https://gist.github.com/Jany-M/ba36a0499e4fb505105e

// Add link to create a cloned CHILD of this post, to action list for post_row_actions
function duplicate_content_link( $actions, $post ) {
	global $typenow;
	$user_id = get_current_user_id();
	$user_data = get_userdata($user_id);

Jany-M

<?php

// Custom View in action row
function change_post_row_actions( $actions, $post ) {
	unset( $actions['view'] );
	$actions['view'] .= '<a href="'.get_the_permalink($post->ID).'" target="_blank">View</a>';
	return $actions;
}
add_filter( 'post_row_actions', 'change_post_row_actions', 10, 2 );
add_filter( 'page_row_actions', 'change_post_row_actions', 10, 2 );

Jany-M

<?php

// Display Trash depending on where and who - and for last
function trash_action( $actions, $post ) {
	global $post, $typenow;
	$user_id = get_current_user_id();
    $user_data = get_userdata($user_id);
    
	// Can this user see the Trash link?
	$my_custom_roles_array = array('custom-role-1', 'custom-role-2');

Jany-M

<?php

// Go to All posts by default, not Mine
function go_to_all() {
    global $typenow;
    
    // Use this if you need this only on specific post types
    /*if( 'post' !== $typenow )
        return;*/
        

Jany-M

<?php
// This requires that your post type is hierarchical obviously (like Pages)

// Display all children of this post/page in a custom metabox below title
function display_msg_for_parents( $post ) {
	$children = get_pages(array('child_of' => $post->ID, 'post_type' => get_post_type($post->ID),));
	if(!empty($children)) { ?>
		<div class="rp_children postbox">
			<button class="handlediv button-link" aria-expanded="true" type="button">
				<span class="screen-reader-text">Toggle panel: Children</span>