Donna McMaster donnamcmaster

## first_leaf.php
/**
 *  First Leaf
 *  Returns the first non-array element (singular or object).
 *  Handy when you're not sure whether information has been stored
      as a singular value ('item') or 1-element array (0=>'item').
 *  The key() function gives us the first key in the array.
 *  Uses recursion to go deeper if necessary; if that's not
 *    what you want, you may need a different solution.
 */
public static function first_leaf ( $value ) {

## wp-filter-shortcode-content.php
// get rid of junk <p> and <br> tags TinyMCE inserts around shortcodes
add_filter( 'the_content', function ( $content ) {
	$array = [
		'<p>[' => '[',
		']</p>' => ']',
		']<br />' => ']',
		']<br>' => ']',
		'<p>&nbsp;</p>' => '',
	];
	$content = strtr( $content, $array );

## wp-revision-filter.php
/**
 * minimize unnecessary revision storage (based on post type)
 */
add_filter( 'wp_revisions_to_keep', function ( $nr_revisions, $post ) {
	switch ( $post->post_type ) {
		case 'page':
		case 'movie':
		case 'article':
		case 'story':
			$nr_revisions = 3;

## wp-timestamp-stylesheets.php
$css_timestamp = filemtime( get_stylesheet_directory() . '/assets/css/app.css' );
wp_enqueue_style( 'child_app', get_stylesheet_directory_uri() . '/assets/css/app.css', null, $css_timestamp );

## strip-shortcode-ptags.php
/* props to Thomas Griffin
   https://thomasgriffin.io/remove-empty-paragraph-tags-shortcodes-wordpress/
 */

$extra_junk = array(
   '<p>[' => '[',
   ']</p>' => ']',
   ']<br />' => ']',
   ']<br>' => ']',
   '<p>&nbsp;</p>' => '',

## icon-from-svg-code.sccs
/* ==========================================================================
   SVG to CSS Example: Breadcrumbs "Home Icon"
   - an example of using the Open Iconic SVG code to create a "home" icon
   - this is the same method as used in the Bootstrap 4 _variables.sccs file
   - started by downloading the distro from https://useiconic.com/open
   - found the 'home' icon SVG and copied its path code
   - then pasted the path code into one of the Bootstrap icon definitions &
     changed the fill color
   ========================================================================== */
$link-color: blue;

## wp-woocommerce-utility-urls.php
<!-- Get and display the My Account page url -->
<?php echo get_permalink( wc_get_page_id( 'checkout' ) ); ?>

<!-- Get and display the Cart page url -->
<?php echo get_permalink( wc_get_page_id( 'cart' ) ); ?>

<!-- Get and display the Shop page url -->
<?php echo get_permalink( wc_get_page_id( 'shop' ) ); ?>

<!-- Get and display the Checkout page url -->

## wp-allow-view-post-editing.php
if ( is_admin() ) {
	// soften post lock to post warning
	add_filter( 'show_post_locked_dialog', '__return_false' );
	add_filter( 'wp_check_post_lock_window', '__return_false' );
}

## wp-widget-shortcode.php
<?php
/**
 *	Widget Shortcode
 *	- allows you to insert a widget into any content area using a shortcode
 *	- credit: http://wp.smashingmagazine.com/2012/12/11/inserting-widgets-with-shortcodes/
 *	- read the comments on the Smashing Magazine article for pros and cons of this function
 */
add_shortcode( 'mcw_widget', function ( $atts ) {
	// configure defaults and extract the attributes into variables
	extract( shortcode_atts(

## wp-insert-custom-media-sizes.php
<?php
/**
 *	Custom Image Sizes
 *	- adds all custom image sizes to the list of choices in Insert Media
 */
add_filter( 'image_size_names_choose', function ( $sizes ) {
	global $_wp_additional_image_sizes;
	if ( !empty( $_wp_additional_image_sizes ) ) {
		foreach ( $_wp_additional_image_sizes as $id => $data ) {
			if ( !isset( $sizes[$id] ) )