WordPress-Handbuch WordPress-Handbuch

Here you can find all listings as GitHub gists: https://gist.github.com/WordPress-Handbuch

WordPress-Handbuch / listing-15-5.php

Created May 19, 2019 09:35

	<?php
	echo 'basename(dirname(__FILE__)) = ' . basename(dirname(__FILE__)) . "<br/>";
	echo '$_SERVER["PHP_SELF"] = ' . $_SERVER["PHP_SELF"] . "<br/>";
	echo '$_SERVER["DOCUMENT_ROOT"] = ' . $_SERVER["DOCUMENT_ROOT"] . "<br/>";
	echo 'dirname(__FILE__) = ' . dirname(__FILE__) . "<br/>";
	echo 'getcwd() = ' . getcwd() . "<br/>";
	echo '__FILE__ = ' . __FILE__ . "<br/>";
	phpinfo();
	?>

WordPress-Handbuch / listing-18-18.php

Created April 23, 2019 06:11

WordPress 5 dropin /wp-content/maintenance.php, a custom maintenance message when using the .maintenance-mechanism in the main directory

	<?php
	header('HTTP/1.1 503 Service Temporarily Unavailable');
	header('Status: 503 Service Temporarily Unavailable');
	header('Retry-After: 3600');
	?><!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">
	<title>Website wird gewartet</title>
	</head>

WordPress-Handbuch / listing-18-17.php

Created April 23, 2019 06:09

WordPress 5 dropin for db-error.php, a custom error message in case of a failed database connection

	<?php ob_start();
	header('HTTP/1.1 503 Service Temporarily Unavailable');
	header('Status: 503 Service Temporarily Unavailable');
	header('Retry-After: 3600');
	mail("info@ihredomain", "Datenbankfehler", "Schon wieder die Datenbank!", "From: Meine Website");
	?><!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">
	<title>Website nicht erreichbar</title>

WordPress-Handbuch / listing-21-5.css

Created April 11, 2019 08:20

Example RWD breakpoints

	/* CSS Styles ausserhalb der folgenden speziellen Media Querys sind fuer grosse Monitore, breiter als 1199px, vorgesehen */
	@media all and (max-width: 1199px) {
	/* CSS Styles fuer grosse Displays */
	}
	@media all and (max-width: 991px) {
	/* CSS Styles fuer Tablets hochkant */
	}
	@media all and (max-width: 768px) {
	/* CSS Styles fuer Smartphones, horizontal */
	}

WordPress-Handbuch / listing-18-16.php

Created April 11, 2019 06:46

Display new image sizes choices set through add_image_size() also in the backend in the right sidebar when editing an image

	function wh_add_image_sizes_to_backend( $existingsizes ) {
	$addsizes = array(
	"wh-homepage-teaser" => 'WH Homepage Teaser',
	"wh-landingpage-stage" => 'WH Landingpage Stage',
	"wh-detailpage-feature" => 'WH Detailpage Feature'
	);
	$newsizes = array_merge( $existingsizes, $addsizes );
	return $newsizes;
	}
	add_filter( 'image_size_names_choose', 'wh_add_image_sizes_to_backend' );

WordPress-Handbuch / listing-18-15.php

Created April 10, 2019 08:12

WordPress 5 Hello Word with translations commands

	<?php
	/**
	* @package WH_Hello_World
	* @version 1.1.0
	*/
	/*
	Plugin Name: WH Hello World
	Plugin URI: https://wordpress-handbuch.com
	Description: Testausgabe in Front- und Backend
	Author: Johannes Mustermann

WordPress-Handbuch / listing-22-2.js

Created March 27, 2019 15:26

WordPress 5 plugin admin js code for the backend preview part of the WH Eyecatcher example project https://wordpress.org/plugins/wh-eyecatcher/

	jQuery(document).ready(function( $ ){
	jQuery('select#wh_eyecatcher_style').on('change', function () {
	$("textarea#wh_eyecatcher_css").val(this.value);
	$("div#wh-eyecatcher").attr("style",this.value);
	});
	jQuery('textarea#wh_eyecatcher_css').on('change keyup paste', function () {
	$("div#wh-eyecatcher").attr("style",this.value);
	});
	jQuery('input#wh_eyecatcher_slogan').on('change keyup paste', function () {
	$("div#wh-eyecatcher").html($("input#wh_eyecatcher_slogan").attr("value"));

WordPress-Handbuch / listing-22-1.php

Last active February 18, 2020 19:55

WordPress 5 plugin main php code of the WH Eyecatcher example project https://wordpress.org/plugins/wh-eyecatcher/

	<?php
	/*
	Plugin Name: WH Eyecatcher
	Plugin URI: https://wordpress-handbuch.com/wh-eyecatcher
	Description: Add a floating slogan to eyery page of your website
	Version: 1.0.2
	Author: WordPress-Handbuch
	Author URI: https://wordpress-handbuch.com
	License: GPL v2 or later
	Copyright 2019 Richard Eisenmenger

WordPress-Handbuch / listing-21-3.php

Created March 26, 2019 08:11

Example functions.php with activated WordPress 5 features

	<?php
	/**
	* WH HTML Vorlage functions and definitions
	*
	* @link @link https://developer.wordpress.org/themes/basics/theme-functions/
	*
	* @package WH_HTML_Vorlage
	*/

	/**

WordPress-Handbuch / listing-21-4.css

Created March 26, 2019 07:38

Example Gutenberg editor styles to be included via add_editor_style( 'listing-21-4.css' );