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Web Dev + WordPress + Security
114 posts related to: Upload Large Files or Die Trying

Check 404 URLs in Database

There are many ways to do this. I wanted the quickest and easiest. I run Yourls on several sites to create shortlinks for my books. Each instance of Yourls contains many URLs. I like to keep my books current. URLs tend to change and break over time. It is a chore to check 800+ links in each of my books, page after page. So I wanted a quick way to check for 404 and other broken links. In this post, […] Continue reading »

Protect Yourls Login Page with Apache/.htaccess

For those who know, YOURLS makes it super easy to host your own URL shortening service. I use Yourls on several sites and it works great at generating shortlinks for otherwise long and tedious URLs. So they’re easier to share, remember, social media, etc. Yourls is developed by a well-respected developer and is 100% FREE and open source for everyone. It’s a truly great app and highly recommended. Continue reading »

WordPress pre_get_posts + Combined Category Archives

This is a quick post following from the latest redesign of my WordPress plugins website, Plugin Planet. There, I make use of WordPress great query functionality to display archives of multiple categories. For example, here is the combined archive for BBQ Pro and Docs. So that category archive displays all documentation posts for BBQ Pro. Likewise for other categories, for example here is the combined archive for Banhammer Pro and Tutorials. That category archive displays all tutorial posts for Banhammer […] Continue reading »

WordPress: Display Posts on a Page with Paging and Navigation

In WordPress themes and plugins, the Loop is used to display posts on the front end. Typically the Loop displays either a single post (like when you’re viewing a blog post), or multiple posts (like when you’re viewing a category archive). Things get more tricky however, when you want to display posts on a page. Continue reading »

Disable Highlighting in Comments with Prismatic WordPress Plugin

Prismatic Icon

Prismatic is a free WordPress plugin that adds syntax highlighting to code samples. You can use either Highlight.js or Prism.js to make your code snippets look amazing. By default, Prismatic highlights code snippets in both post content and post comments. This quick tutorial shows how to disable highlighting in post comments by adding a simple code snippet to your WordPress. Estimated time to complete ~2 minutes. Continue reading »

Filtered Language Menus with Prismatic WordPress Plugin

Prismatic Icon

Prismatic is a free WordPress plugin that adds syntax highlighting to code samples. You can use either Highlight.js or Prism.js to make your code snippets look amazing. This quick tutorial shares a way to customize Prismatic to save time scrolling thru a bunch of language options. Huge time-saver and simple to implement in a few minutes. Continue reading »

Apache Redirect Range of IP Addresses (IPv4 and IPv6)

There are numerous ways to redirect requests using Apache’s mod_rewrite and mod_alias. This concise, friendly tutorial explains different ways to redirect a range of IP addresses, either IPv4 or IPv6. Continue reading »

Disable Apache mod_rewrite Rules in any Subdirectory

Let’s say you have some .htaccess rewrite rules in place using Apache’s mod_rewrite. By default if the rewrite rules are located in the root directory, they will be applied to every subdirectory, as expected. But what if you need to disable the rewrite rules so that they do not affect some specific sub-directory or sub-folder? This super quick tutorial shows the easiest way to do it. Continue reading »

4 Ways to Make a WordPress Site Private Access Only

LOTR: Doors of Durin

Have you ever wanted to make a WordPress site private? So that only specific users are allowed access? For example, for my found-images site eChunks.com, I decided to require user login in order to access any content. So now for that site, public access is not allowed, and any posts, images, and all other content is available only to logged-in users. This tutorial explains four ways to make a WordPress site private or members only, so that only authenticated/trusted users […] Continue reading »

Stop WordPress from Changing .htaccess

[ Prevent WordPress Automatic .htaccess Modifications ]

In a recent tutorial, I explain how to Stop WordPress from modifying .htaccess. That post explains several ways to prevent WordPress from making changes to .htaccess. This post explains an even better way that is safe, effective, non-invasive, re-usable, and super simple. I’ve been using it on my own sites now for a few years and it works flawlessly. Continue reading »

.htaccess Redirect Examples

Finally put together a giant list of .htaccess redirect examples. It’s meant as a quick copy-&-paste resource for those who may be looking for an assortment of redirect techniques. Here you will find redirects via mod_alias and mod_rewrite. Examples include redirecting to and from any directory, subdirectory, resource, URL, and much more. Most of these examples are taken from my previous article, Stupid htaccess Tricks; other examples are taken from previous .htaccess tutorials here at Perishable Press. Enjoy! :) Continue reading »

How to Modify HTTP Headers in the WordPress Admin Area

WordPress provides the wp_headers filter hook and send_headers action hook to add and modify HTTP requests. For front-end pages, these are ideal hooks that should be used whenever possible. Unfortunately however neither hook works on all pages in the WordPress Admin Area. After some experimentation, I found an easy solution to modify HTTP headers on any/all pages in the Admin Area. Continue reading »

WordPress Error Fix: “Call to undefined function get_header()”

[ Call to undefined function ]

I’m seeing a big increase in bot attacks targeting theme files directly. First they get the URL to your theme directory. There are numerous ways for a bot to get this information. For example most themes include assets like CSS and JavaScript files, and the link includes the full URL. So then once they have the theme URL, bad bots will make direct requests for well-known theme template files, like index.php and header.php. Requesting template files directly may reveal possible […] Continue reading »

Difference between mod_alias and mod_rewrite

Most of the redirect techniques provided in my stupid .htaccess tricks article all use Apache’s alias module, mod_alias. You can also use mod_rewrite to redirect URLs. The main difference is that, with mod_alias, the server is responding to the client request with a redirect, so the client immediately is sent to the new location. Conversely, with mod_rewrite, the server simply returns the new content, so the client is not actually redirected anywhere. This makes mod_rewrite more advantageous because it happens […] Continue reading »

X Theme Leftover Code Snippets

While working on the site’s 24th redesign, I ended up with about 10 code snippets that were awesome but ultimately not needed. So rather than just delete these tasty functions, I am posting them here for future reference. Who knows, during the next site update I may decide to implement or repurpose some of these techniques. And of course sharing is caring, so feel free to use any of these code snippets in your own projects. Check out the Table […] Continue reading »

404 Fix: Block Nuisance Requests for Non-Existent Files

[ Han Solo shutting up C-3PO in Empire Strikes Back ]

As I’ve written before, blocking nuisance requests can help save you money by cutting down on wasted server resources, memory, and so forth. It also saves you time, as your server access and error logs won’t be full of nuisance request spam. So you will have more resources and time for things that matter, like running your business, helping customers, improving code, etc. So to continue the proud tradition of blocking malicious traffic, this post builds upon previous blocking techniques […] Continue reading »

Welcome
Perishable Press is operated by Jeff Starr, a professional web developer and book author with two decades of experience. Here you will find posts about web development, WordPress, security, and more »
The Tao of WordPress: Master the art of WordPress.
Thoughts
The Office is Cheers with more irony.
More fine-grained control of macOS screen brightness: hold down Option + Shift before pressing either of the brightness keys. You get 64 increments instead of the usual 16.
REST Pro Tools featured in David McCan’s new video on locking down WordPress.
Gonna try exercise.
Launching my new plugin, REST Pro Tools 🛠️ Granular control of the WP REST API.
The algorithm is way too hypersensitive.
Working on a new pro WP plugin :)
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