WordPress Error Fix(?): Increase PHP Memory for cache.php
This trick isn’t guaranteed to prevent all WordPress-generated PHP memory errors, but it certainly seems to help reduce their overall occurrence. For some reason, after my host upgraded their servers to Apache 1.3.41, I began logging an extremely high number of fatal PHP “memory exhausted” errors resulting from the WordPress cache.php script. Here is an example of the countless errors that are generated: Continue reading »
Blacklist Candidate Number 2008-02-10
Welcome to the Perishable Press “Blacklist Candidate” series. In this post, we continue our new tradition of exposing, humiliating and banishing spammers, crackers and other worthless scumbags.. Like many bloggers, I like to spend a little quality time each week examining my site’s error logs. The data contained in Apache, 404, and even PHP error logs is always enlightening. In addition to suspicious behavior, spam nonsense, and cracker mischief, this site frequently endures automated and even manual attacks targeting various […] Continue reading »
Permalink Evolution: Customize and Optimize Your Dated WordPress Permalinks
How to streamline and maximize the effectiveness of your WordPress URLs by using htaccess to remove extraneous post-date information: years, months, and days.. Recently, there has been much discussion about whether or not to remove the post-date information from WordPress permalinks1. Way back during the WordPress 1.2/1.5 days, URL post-date inclusion had become very popular, in part due to reports of potential conflicts with post-name-only permalinks. Throw in the inevitable “monkey-see, monkey-do” mentality typical of many bloggers, and suddenly an […] Continue reading »
Advanced PHP Error Handling via PHP
In my previous articles on PHP error handling, I explain the process whereby PHP error handling may be achieved using htaccess. Handling (logging, reporting) PHP errors via htaccess requires the following: Continue reading »
1-Minute Tutorial: Permanent (301) Redirect via PHP or htaccess
Here is an example of one of the most frequently asked PHP/htaccess-related questions I receive here at Perishable Press: How do I redirect a specific page/URL using PHP/htaccess? So common is this inquiry that I have decided to just post a quick, “one-minute” tutorial describing the technique. Continue reading »
Comprehensive URL Canonicalization via htaccess for WordPress-Powered Sites
Permalink URL canonicalization is automated via PHP in WordPress 2.3+, however, for those of us running sites on pre-2.3 versions or preferring to deal with rewrites directly via Apache, comprehensive WordPress URL canonicalization via htaccess may seem impossible. While there are several common methods that are partially effective, there has not yet been available a complete, user-friendly solution designed specifically for WordPress. Until now.. In this article, I share my “secret” htaccess URL canonicalization formula. I originally developed this method […] Continue reading »
Advanced PHP Error Handling via htaccess
In my previous article on logging PHP errors, How to Enable PHP Error Logging via htaccess, we observed three fundamental aspects of preventing, preserving, and protecting your site’s PHP errors. Continue reading »
Blacklist Candidate Number 2008-01-02
Welcome to the Perishable Press “Blacklist Candidate” series! In this first post, we begin a new tradition of exposing, humiliating and banishing spammers, crackers and other worthless scumbags.. Every Wednesday, I take a little time to investigate my 404 error logs. In addition to spam, crack attacks, and other deliberate mischief, the 404 logs for Perishable Press contain errors due to missing resources, mistyped URLs, and the occasional bizarre or even suspicious behavior of the search-engine robots. Whenever possible, I […] Continue reading »
Optimize WordPress: Pure Code Alternatives for 7 Unnecessary Plugins
In this article, my goal is to help you optimize WordPress by replacing a few common plugins with their correspondingly effective code equivalents. As we all know, WordPress can be a very resource-hungry piece of software, especially when running a million extraneous plugins. Often, many common plugins are designed to perform relatively simple tasks, such as redirect a feed, display a random image, query the database, etc. For those of us comfortable with editing PHP and htaccess code, there is […] Continue reading »
How to Enable PHP Error Logging via htaccess
In this brief tutorial, I will show Apache users how to suppress PHP errors from visitors and enable PHP error logging via htaccess. Tracking your site’s PHP errors is an excellent way to manage and troubleshoot unexpected issues related to plugins and themes. Even better, monitoring PHP errors behind the scenes via private log is far better than trying to catch them as they appear at random visits. Thanks to the magical powers of htaccess, there is an easy way […] Continue reading »
A Dramatic Week Here at Perishable Press..
..And we’re back. After an insane week spent shopping for a new host, dealing with some Bad Behavior, and transferring Perishable Press to its new home on a virtual private server (VPS), everything is slowly falling back into place. Along the way, there have been some interesting challenges and many lessons learned. Here are a few of the highlights.. Continue reading »
Three Ways to Allow Hotlinking in Specific Directories
After implementing any of the hotlink-prevention techniques described in our previous article, you may find it necessary to disable hotlink-protection for a specific directory. By default, htaccess rules apply to the directory in which it is located, as well as all subdirectories contained therein. There are (at least) three ways to enable selective hotlinking: Place hotlink images in an alternate directory This method works great if your hotlink-protection rules are located in a directory other than the site root. Simply […] Continue reading »
Stupid htaccess Trick: Enable File or Directory Access to Your Password-Protected Site
In this brief tutorial, we are going to enable users to access any file or directory of a site that is password-protected via htaccess. There are many reasons for wanting to employ this technique, including: Share public resources from an otherwise private site Enable visitors to access content during site maintenance Testing and formatting of layout and design during development As a webmaster, I have used this technique on several occasions. This trick works great for allowing access to any […] Continue reading »
Creating the Ultimate .htaccess Anti-Hotlinking Strategy
When I wrote my article, Stupid htaccess Tricks, a couple of years ago, hotlink-protection via htaccess was becoming very popular. Many webmasters and bloggers were getting tired of wasting bandwidth on hotlinked resources, and therefore turned to the power of htaccess to protect their content. At that time, there were only a couple of different hotlink-protection methods available on the internet, and the functional difference between them was virtually insignificant. All that was necessary for up-and-coming bloggers-slash-site-administrators to eliminate leaking […] Continue reading »
Ultimate .htaccess Blacklist 2: Compressed Version
In our original htaccess blacklist article, we provide an extensive list of bad user agents. This so-called “Ultimate htaccess Blacklist” works great at blocking many different online villains: spammers, scammers, scrapers, scrappers, rippers, leechers — you name it. Yet, despite its usefulness, there is always room for improvement. Continue reading »
How to Verify the Four Major Search Engines
Keeping track of your access and error logs is a critical component of any serious security strategy. Many times, you will see a recorded entry that looks legitimate, such that it may easily be dismissed as genuine Google fare, only to discover upon closer investigation a fraudulent agent. There are many such cloaked or disguised agents crawling around these days, mimicking various search engines to hide beneath the radar. So it’s always a good idea to implement a procedure for […] Continue reading »
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 »
