WP-Mix (Page 32 of 35) | A fresh mix of code snippets and tutorials

Set Firmware Password on macOS

Own a Mac? Prevent thieves from wiping your hard drive by setting a firmware password. Especially useful if running any sort of anti-theft or tracking app. Setting a firmware password for macOS is straightforward, requiring only three steps.

WordPress Create Shortcode

Ultra-quick guide to help you create a WordPress Shortcode. Aimed at experienced WordPress users who need a basic example of how to create shortcodes.

Simple Ajax Chat Test Script

When testing my plugin, Simple Ajax Chat (SAC), I use the following script to save time testing various chat functionality. Posted here in case it’s useful for others. Note this is for the free version of SAC. Enjoy!

Two interesting WordPress infographics

Here are a couple of interesting infographics for WordPress. Interesting to get a larger view of the WP universe :)

WordPress: Add “View HTML” Button on Edit Post Screen

On a recent project, I found myself viewing the HTML source for every post and page on a WordPress-powered site. After about a thousand clicks, I decided to write a code snippet that adds a “View HTML” button (it’s actually just a link) for each post row displayed on the WordPress “Edit Post” screen. So […]

PHP: Remove Empty File Data

This quick function does one simple thing. It removes empty file data from a PHP files array. As you may know, the structure of the $_FILES array is sort of backwards from what normally would be expected. Because of this, removing empty file data from the array requires some extra wrangling. So to make things […]

WordPress s2member PayPal Fix

For those using s2Member and getting no response after clicking the “Continue” button on the PayPal.com site, here is a quick possible solution.

Notes on @media queries

Just a couple of notes for working with CSS @media queries: two ways to write media queries and how to query portrait vs. landscape orientation.

Redirect Attacker to Special Message

If you are using Apache server, you can stop an attack by getting the IP address of the attacker and then using it to block or redirect all of their requests. Normally I just block the requests using either Deny or Require directives (depending on Apache version), but sometimes it’s fun to redirect the attacker […]

JavaScript & jQuery: Add Style to Fragment Identifier

It’s easy to style a <div></div> by targeting its ID. But what if you only want to add style when a specific fragment identifier is targeted via the URL? So for example, your page at /about/ has a table with all the data. When visitors arrive directly at /about/, no extra styles are added. But […]

jQuery Add Another Image Link

This code snippet is taken from my plugin, User Submitted Posts. It displays a link that users may click to add another file-upload input field.

Get WP, PHP, and SQL Info

Here are some sweet code snippets for getting various types of server information. Includes more functions for getting and/or checking various types of WordPress, PHP, and SQL data. Strictly plug-&-play for quick reference and copy/paste usage.

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