Tag: php

Speaker at WordCamp Birmingham – More WP REST API

Posted on by Evan Mullins

I am excited to be a speaker at WordCamp Birmingham 2016. I’ll be speaking on October 29th – just a couple weeks away and now that they have announced the #wcbhm schedule I’m announcing my participation as well. I’ll be opening up the developer track for the day at 10am. I will be presenting more about the WP REST API. A lot will be taken from my WordCamp Raleigh presentation on the same subject, but as usually happens, once you do present, you realize a few holes in your slides and have some additions, suffice it to say, this won’t just be a repeat presentation.

wordcamp-birmingham-badge-speaking

WP API, What is it Good For? Absolutely Everything!

I am very excited about the WP API and am tracking it’s progress closely. There are big discussions as to when it will be rolled into core and all and we’ll discuss these details in the presentation, we’ll also discuss things we can do with the API. It allows us to further separate the data from the code. Because WordPress is a great CMS we can use it to manage our data and then via the API access that data to power whatever we like. We’ll touch a handful of examples and explore an iOS app pulling all it’s data and assets from a WordPress site via this API. We’ll discuss authentication and terms to bring API beginners up to speed on what it’s all about!

So if you’re anywhere close, I encourage you to go get yourself a ticket (just $20) to WordCamp Birmingham and check it out. There will be many other presentations worth checking out as well. I hope to see some familiar faces in Birmingham!

Modifying Your Theme’s Design – Learning CSS: Atlanta WordPress Users Group Presentation

Posted on by Evan Mullins

Here’s my presentation for the Atlanta WordPress Users Group to continuing their discussion on theming. The meetup gives you a first hand look at modifying your Theme’s look and feel. We’ll be showing you how to make typical changes to existing themes. We will not be showing you how to create your own theme from scratch, though we will have a meetup later in the year to do that.

During this meetup we discussed:

• What is CSS and why do we use it?

• What are ‘typical’ modifications to themes and how to make them

• Using ‘inspect element’ and/or ‘firebug’ to find and test

• Correct way to change Fonts

• Simple color theory and design

Here’s the slide deck for the presentation

The presentation overviews the internet, teaches us how to spell HTML and other web programming “languages” that come together to form a WordPress website, like HTML, CSS & PHP. We even discussed web development tools like FTP clients and which text editors to use. We went over what makes up a wordpress theme and then the concept of child themes. Discussed the process of creating your own child theme with just a couple files and that you can create a child theme for any theme out there. We demoed how to view source and dissect any website, but more importantly, how to inspect elements on your site and live-edit the css for any element. Then to write these CSS rules to our theme to lock in the edits in your child theme.

If you have any further questions that you would specifically like reviewed, leave them in the comments below and I’ll respond.

We created a child theme for twentysixteen

We created our own child theme and discussed the benefit to creating a child theme over other ways to modify a WP theme. Our twentysixteen child theme did wonders for the look:

Screenshot 2016-03-10 08.32.56

We explored the code to create our own WordPress child theme

Here are the code snippets for review


<?php
function theme_enqueue_styles() {
$parent_style = 'parent-style';
wp_enqueue_style( $parent_style, get_template_directory_uri() . '/style.css' );
wp_enqueue_style( 'child-style', get_stylesheet_directory_uri() . '/style.css', array( $parent_style ) );
}
add_action( 'wp_enqueue_scripts', 'theme_enqueue_styles' );
?>

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functions.php

hosted with ❤ by GitHub


<?php
/**
* The template for displaying the header
*
* Displays all of the head element and everything up until the "site-content" div.
*
* @package WordPress
* @subpackage Twenty_Sixteen
* @since Twenty Sixteen 1.0
*/
?><!DOCTYPE html>
<html <?php language_attributes(); ?> class="no-js">
<head>
<meta charset="<?php bloginfo( 'charset' ); ?>">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="who" content="is your daddy">
<link rel="profile" href="http://gmpg.org/xfn/11">
<?php if ( is_singular() && pings_open( get_queried_object() ) ) : ?>
<link rel="pingback" href="<?php bloginfo( 'pingback_url' ); ?>">
<?php endif; ?>
<?php wp_head(); ?>
</head>
<body <?php body_class(); ?>>
<div id="page" class="site">
<div class="site-inner">
<a class="skip-link screen-reader-text" href="#content"><?php _e( 'Skip to content', 'twentysixteen' ); ?></a>
<header id="masthead" class="site-header" role="banner">
<div class="site-header-main">
<div class="site-branding">
<?php
$description = get_bloginfo( 'description', 'display' );
if ( $description || is_customize_preview() ) : ?>
<p class="site-description"><?php echo $description; ?></p>
<?php endif; ?>
<?php if ( is_front_page() && is_home() ) : ?>
<h1 class="site-title"><a href="<?php echo esc_url( home_url( '/' ) ); ?>" rel="home"><?php bloginfo( 'name' ); ?></a></h1>
<?php else : ?>
<p class="site-title"><a href="<?php echo esc_url( home_url( '/' ) ); ?>" rel="home"><?php bloginfo( 'name' ); ?></a></p>
<?php endif; ?>
</div><!– .site-branding –>
<?php if ( has_nav_menu( 'primary' ) || has_nav_menu( 'social' ) ) : ?>
<button id="menu-toggle" class="menu-toggle"><?php _e( 'Menu', 'twentysixteen' ); ?></button>
<div id="site-header-menu" class="site-header-menu">
<?php if ( has_nav_menu( 'primary' ) ) : ?>
<nav id="site-navigation" class="main-navigation" role="navigation" aria-label="<?php esc_attr_e( 'Primary Menu', 'twentysixteen' ); ?>">
<?php
wp_nav_menu( array(
'theme_location' => 'primary',
'menu_class' => 'primary-menu',
) );
?>
</nav><!– .main-navigation –>
<?php endif; ?>
<?php if ( has_nav_menu( 'social' ) ) : ?>
<nav id="social-navigation" class="social-navigation" role="navigation" aria-label="<?php esc_attr_e( 'Social Links Menu', 'twentysixteen' ); ?>">
<?php
wp_nav_menu( array(
'theme_location' => 'social',
'menu_class' => 'social-links-menu',
'depth' => 1,
'link_before' => '<span class="screen-reader-text">',
'link_after' => '</span>',
) );
?>
</nav><!– .social-navigation –>
<?php endif; ?>
</div><!– .site-header-menu –>
<?php endif; ?>
</div><!– .site-header-main –>
<?php if ( get_header_image() ) : ?>
<?php
/**
* Filter the default twentysixteen custom header sizes attribute.
*
* @since Twenty Sixteen 1.0
*
* @param string $custom_header_sizes sizes attribute
* for Custom Header. Default '(max-width: 709px) 85vw,
* (max-width: 909px) 81vw, (max-width: 1362px) 88vw, 1200px'.
*/
$custom_header_sizes = apply_filters( 'twentysixteen_custom_header_sizes', '(max-width: 709px) 85vw, (max-width: 909px) 81vw, (max-width: 1362px) 88vw, 1200px' );
?>
<div class="header-image">
<a href="<?php echo esc_url( home_url( '/' ) ); ?>" rel="home">
<img src="<?php header_image(); ?>" srcset="<?php echo esc_attr( wp_get_attachment_image_srcset( get_custom_header()->attachment_id ) ); ?>" sizes="<?php echo esc_attr( $custom_header_sizes ); ?>" width="<?php echo esc_attr( get_custom_header()->width ); ?>" height="<?php echo esc_attr( get_custom_header()->height ); ?>" alt="<?php echo esc_attr( get_bloginfo( 'name', 'display' ) ); ?>">
</a>
</div><!– .header-image –>
<?php endif; // End header image check. ?>
</header><!– .site-header –>
<div id="content" class="site-content">

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header.php

hosted with ❤ by GitHub


/*
Theme Name: Child of 2016
Theme URI: http://example.com/twenty-fifteen-child/
Description: Twenty Sixteen Child Theme
Author: Evan Mullins
Author URI: https://circlecube.com
Template: twentysixteen
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: twenty-sixteen-child
*/
.site-branding .site-title a {
color: cyan;
font-size: 4rem;
// border: 1px solid red;
margin: 50px;
padding: 50px;
}
.site-description {
text-indent: -999rem;
background: url(img/logo.png) center center no-repeat transparent;
background-image: url(img/logo.png);
display: block;
width: 500px;
height: 500px;
background-size: contain;
padding:0;
}
.entry-date {
font-size: 10px;
}
.entry-footer,
.entry-footer a {
color: pink;
}
.entry-footer a {
color: pink;
}
a {
color: tomato;
}
a:hover {
color: rgba(130,203,45, .8);
}
a:visited {
color: #00cc33;
}
.widget_meta {
display:none;
}
.widget_recent_comments {
padding: 1rem;
margin: 1rem 0 4rem;
}
.widget_recent_comments .widget-title {
background: black;
color: pink;
padding: 1rem;
}
.site-info .site-title {
font-size: 3rem;
}

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style.css

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How to Add a class to the WordPress comments submit button

Posted on by Evan Mullins

This WordPress feature slipped by me, but since the release of WP 4.1 there is a great and simple new filter that I’ve been watching for a number of years here. Interestingly this ticket was opened 5 years ago today, so some have literally been waiting years! The commentform.php file now has a couple more options available as explained in this changeset.

add_filter( 'comment_form_defaults', 'circlecube_comment_form' );I have been using foundation and bootstrap on sites and have struggled with the best way to add a button class to this button since I wanted it to inherit the frameworks styles for a button. I’ve seen a few ways to go about doing this, like using javascript (ug), or adding an extra button and hiding the original button with css (meh). But now it’s a simple little filter to add to comment_form_defaults.  Just add your desired class value to ‘class_submit’ in the args. I’ve put it into a simple little gist to add a ‘button’ class to my input type equals submit:


function circlecube_comment_form( $args ) {
$args['class_submit'] = 'button'; // since WP 4.1
return $args;
}
add_filter( 'comment_form_defaults', 'circlecube_comment_form' );

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functions.php

hosted with ❤ by GitHub

How to fix “The called constructor method for WP_Widget is deprecated since version 4.3.0!”

Posted on by Evan Mullins

Have you updated WordPress recently to find notices warning you of something related to your Widgets? These notices will show up if you have your site in debug mode (which you should in your local environment, but not on your production website) with the setting in wp-config.php.

Notice: The called constructor method for WP_Widget is deprecated since version 4.3.0! Use

__construct()

instead. in /wp-includes/functions.php on line 3457.

Screenshot 2015-09-17 13.19.49

Here is an example of what you likely have currently in your functions.php file to register your existing widget(s) (in old functions.php on the bottom) and then an example of how to update the widget class with the _construct update (in new functions.php on the top).

human_time_diff « WordPress Codex

Posted on by Evan Mullins

Determines the difference between two timestamps.The difference is returned in a human readable format such as “1 hour”, “5 mins”, “2 days”.

Source: Function Reference/human time diff « WordPress Codex

Used this little known, but nice gem today. It’s a core WordPress function that gives human relative time from any other datetime in “U” format. Like so:

human_time_diff( date("U", strtotime($twitter_data[$i]->created_at)) );

Add Links to Twitter Mentions, Hashtags, and URLs with PHP

Posted on by Evan Mullins

This gem helped me out today as I was working with the Twitter API to create a custom WordPress widget. I was about to do exactly this and was not looking forward to it, luckily I did a quick search and found this webtips post. Thanks!

If you’re using the Twitter v1.1 API to fetch a user’s statuses from their timeline, then you’ve likely come across the fact that user mentions, hashtags, and urls do not have links in the “text” node of the JSON response the API returns. There is no element to follow the link, and there are no links to follow to check out a mention or hashtag on Twitter site. This can easily be overcome using PHP and parsing some of the data in the JSON response and wrapping the entities in the desired elements.

Source: Add Links to Twitter Mentions, Hashtags, and URLs with PHP

Add Shortcode with Add Media Button

Posted on by Evan Mullins

This code snippet really helped me today and since the post doesn’t have commenting enabled, I wanted to say thanks here! Working on building a WordPress plugin that generates shortcodes and wanted an interface for the user to create their own with a wizard of sorts, so using a media button, shortcode and thickbox all together wasn’t very documented anywhere that I could find until I came across this one and I was happy to be able to lift what I needed from this snippet and see my code working like a charm now. The plugin I’m working on is for the Greenhouse Recruiting site and pulls in a job board onto your site via their API. The shortcode wizard will be included in a release soon so you can see it in action.

add shortcode to a page or post without remembering the shortcode itself… choose the shortcode parameters and then have it automatically place itself in the editor

via Add Shortcode with Add Media Button.

A Developer’s Guide to Contributing to WordPress Core

Posted on by Evan Mullins

Here’s a great post from the team at delicious brains, the same team who brings us WP Migrate DB Pro for all our wordpress database migration needs (and do a bang up job I might add). They discuss all the in and out of working with trac and the ticketing system as well as setting up a development site for testing and running unit test, making (and submitting) code patches and using svn to manage it all. It’s an awesome post full of meaty details on how to start getting involved, since if you’re new to it all, it certainly is a lot to figure out on your own. Give it a read and dive in to work toward your own contributions!

basics for finding things to work on, how to handle the WordPress source code, how to submit your work and what you might expect to happen from there.

via A Developer’s Guide to Contributing to WordPress Core.

Hooks, In a Nutshell – WP Daily

Posted on by Evan Mullins

I’ve published another article over on wpdaily.co exploring the concept of hooks. I remember when starting out that people kept mentioning hooks and filters and actions and… it took a while to grasp what they each meant. I think the first time I started to grasp it was when I read the codex and saw this:

You can sometimes accomplish the same goal with either an action or a filter. For example, if you want your plugin to change the text of a post, you might add an action function to publish_post (so the post is modified as it is saved to the database), or a filter function to the_content (so the post is modified as it is displayed in the browser screen).

And realized that actions and filters are each kinds of hooks. In the post I use a metaphor of procedural programming as people standing in a line waiting to register at the DMV. I hope it will help you understand hooks a little bit better. read it now at Hooks, In a Glorious Nutshell – WP Daily.