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//@see http://blog.codeinside.eu/2016/05/12/copy-to-clipboard-with-javascript

        function detectIE() {
            var ua = window.navigator.userAgent;

            var msie = ua.indexOf('MSIE ');
            if (msie > 0) {
                // IE 10 or older => return version number
                return parseInt(ua.substring(msie + 5, ua.indexOf('.', msie)), 10);
            }

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// @see http://dnaber.de/blog/2015/wordpress-antipattern-filter-im-constructor-zuweisen/
class MetaBoxRegistrar {

	private $metaBox;
	
	public function __construct( MetaBoxInterface $metaBox ) {
	
		$this->metaBox = $metaBox;
	}
	

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<?php
/**
 * Plugin Name: WP Members Add-on, Change Read Access for role author
 */

! defined( 'ABSPATH' ) && exit;

register_activation_hook( __FILE__, function() {

	if ( ! function_exists( 'wpmem_block' ) ) {

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Regular Expression Cheat Sheet - PCRE

Kudos/Source: https://github.com/niklongstone/regular-expression-cheat-sheet

Anchor	Description	Example	Valid match	Invalid
^	start of string or line	^foam	foam	bath foam
\A	start of string in any match mode	\Afoam	foam	bath foam
$	end of string or line	finish$	finish	finnish
\Z	end of string, or char before last new line in any match mode	finish\Z	finish	finnish

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<?php
/**
 * Plugin Name: https Fix for enqueue scripts/styles
 */
 
// Fix some badly enqueued scripts with no sense of HTTPS for the back end only.
// Kudos to http://snippets.webaware.com.au/snippets/cleaning-up-wordpress-plugin-script-and-stylesheet-loads-over-ssl/
add_action( 'wp_print_scripts', 'fb_enqueueScriptsFix', 100 );
add_action( 'wp_print_styles', 'fb_enqueueStylesFix', 100 );

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WordPress i18n CheatSheet

Whenever I write plugins or themes, there is one thing that needs a little extra attention and is quite frankly hard to get right: Translatable text. This list should helps me to find the right way fast.

Props to Alex Kirk, there list it inside a quiz.

You want to output the username in a sentence.

Assume that the $username has been escaped using esc_html().

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<?php # -*- coding: utf-8 -*-
/**
 * Plugin Name: MultilingualPress Add-on that get a Dropdown Language Menu
 * Description: This is a simple add-on for the MultilingualPress plugin to get a dropdown language menu.
 * Author:      Inpsyde GmbH
 * Author URI:  http://inpsyde.com
 * Version:     2015-11-28
 * Text Domain: textdomain
 * License:     GPLv2+
 * Network:     true

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<?php # -*- coding: utf-8 -*-
/**
 * Plugin Name: MultilingualPress Add on as example to create a custom language switcher widget.
 * Description: This is a simple add-on for the MultilingualPress plugin to create a language switcher widget, that is only visible if there are relationship.
 * Author:      Inpsyde GmbH
 * Author URI:  http://inpsyde.com
 * Version:     2015-10-19
 * Text Domain: multilingualpressaddon
 * Domain Path: /languages
 * License:     GPLv2+

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<?php # -*- coding: utf-8 -*-
/**
 * Plugin Name: MultilingualPress Add on to hide Non-public Sites
 * Description: This is a simple add-on for the MultilingualPress plugin to hide non-public sites (i.e., languages) from translation lists such as the Language Switcher widget or the Quicklinks.
 * Author:      Inpsyde GmbH
 * Author URI:  http://inpsyde.com
 * Version:     2015-09-16
 * License:     GPLv2+
 * Network:     true
 */

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<?php
/**
 * Plugin Name: MultilingualPress Alternative Title to Admin Bar Site links
 * Plugin URI:  https://github.com/inpsyde/multilingual-press
 * Description:
 * Author:      Inpsyde GmbH
 * Author URI:  http://inpsyde.com
 * Version:     20.05.2015
 * Text Domain: multilingualpress
 * Domain Path: /languages