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WordPress Emails

This document lists all the situations where WordPress sends an email, along with how to filter or disable each email.

	"use strict";

	// based on unutbu's stackoverflow answer
	// https://stackoverflow.com/a/40958702/54829

	// which is based on Evan Miller's blog post
	// http://www.evanmiller.org/ranking-items-with-star-ratings.html

	function starsort(ratings) {
	function sum(array) { return array.reduce((x, y) => x + y, 0) };

	function wc_bypass_logout_confirmation() {
	global $wp;

	if ( isset( $wp->query_vars['customer-logout'] ) ) {
	wp_redirect( str_replace( '&', '&', wp_logout_url( wc_get_page_permalink( 'myaccount' ) ) ) );
	exit;
	}
	}

	add_action( 'template_redirect', 'wc_bypass_logout_confirmation' );

	<?php

	/**
	* Send "New User Registration" email to admins when new customer is created on WooCommerce.
	*
	* @param int $id New customer ID.
	*/
	function my_wc_customer_created_notification( $id ) {
	wp_new_user_notification( $id, null, 'admin' );
	}

	<?php
	/**
	* Make sure the function does not exist before defining it
	*/
	if( ! function_exists( 'remove_class_filter' ) ){

	/**
	* Remove Class Filter Without Access to Class Object
	*
	* In order to use the core WordPress remove_filter() on a filter added with the callback

	<?php // only copy if needed!

	/**
	* Disables repeat purchase for the product
	*
	* @param bool $purchasable true if product can be purchased
	* @param \WC_Product $product the WooCommerce product
	* @return bool $purchasable the updated is_purchasable check
	*/
	function sv_disable_repeat_purchase( $purchasable, $product ) {

	<?php

	/**
	* Insert an attachment from a URL address.
	*
	* @param string $url The URL address.
	* @param int\|null $parent_post_id The parent post ID (Optional).
	* @return int\|false The attachment ID on success. False on failure.
	*/
	function wp_insert_attachment_from_url( $url, $parent_post_id = null ) {

	On Mac OS X (Leopard+), the Apache HTTP Server runs under the user account, _www which belongs to the group _www. To allow WordPress to configure wp-config.php during installation, update files during upgrades, and update the .htaccess file for pretty permalinks, give the server write permission on the files.

	One way to do this is to change the owner of the wordpress directory and its contents to _www. Keep the group as staff, a group to which your user account belongs and give write permissions to the group.

	$ cd /<wherever>/Sites/<thesite>
	$ sudo chown -R _www wordpress
	$ sudo chmod -R g+w wordpress

	This way, the WordPress directories have a permission level of 775 and files have a permission level of 664. No file nor directory is world-writeable.

	<?php
	/**
	* Klasse zum Erstellen einer WordPress Breadcrumb Navigation.
	*
	* @author Dominik Schilling
	* @license GPLv2
	* @link http://wpgrafie.de/204/
	*
	* @version 0.1.1
	*/

	<?php

	/**
	* This is free and unencumbered software released into the public domain.
	*
	* Anyone is free to copy, modify, publish, use, compile, sell, or
	* distribute this software, either in source code form or as a compiled
	* binary, for any purpose, commercial or non-commercial, and by any
	* means.
	*