Book Sale! Save 20% on WordPress books with discount code: SAVE20
Web Dev + WordPress + Security
Tag: cache
6 posts

Better Image Caching with CSS

I have written previously on the fine art of preloading images without JavaScript using only CSS. These caching techniques have evolved in terms of effectiveness and accuracy, but may be improved further to allow for greater cross-browser functionality. In this post, I share a “CSS-only” preloading method that works better under a broader set of conditions. Previous image-preloading techniques target all browsers, devices, and media types. Unfortunately, certain browsers do not load images that are hidden directly (via the <img […] Continue reading »

Preventing the Unpredictable White Screen of Death for WordPress Sites with Multiple Themes

For the past several months and up until just recently, Perishable Press had been suffering from unpredictable episodes of the dreaded white screen of death. Although blank white screens happen to virtually all WordPress users now and then, certain configurations seem to trigger crashes more frequently than others. Here, I am referring to WordPress version 2.3. In this case, the unpredictable crashes, inconsistent errors, and general instability began several months ago after I had completed my WordPress theme restoration project. […] Continue reading »

How to Cache Mint JavaScript

Recently, I spent some time addressing a few of the performance issues pointed out by Yahoo!’s very useful YSlow extension for Firebug. Working on performance tip #3, Add an Expires or a Cache-Control Header, I encountered some difficulty while trying to get the JavaScript used by Mint to cache as desired. Apparently, the HTAccess directives used to cache my other scripts do not effect the two PHP-generated JavaScript files used by Mint. Although I am not entirely certain, I suspect […] Continue reading »

Improve Site Performance by Increasing PHP Memory for WordPress

During the recent ASO server debacle, I raced frantically to restore functionality to Perishable Press. Along the way, one of the many tricks that I tried while trying to fix the dreaded “white screen of death” syndrome involved increasing the amount of PHP memory available to WordPress. This fix worked for me, but may not prove effective on every installation of WordPress. If you are unsure as to whether or not you need to increase your PHP memory, consult with […] Continue reading »

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 »

How to Enable the Default WordPress Object Cache

Recently, while attempting to optimize site performance, I found myself experimenting with various caching mechanisms currently available for WordPress. Specifically, I explored each of the following caching options: 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 »
Blackhole Pro: Trap bad bots in a virtual black hole.
Thoughts
When an app won’t hide, you can force it by holding the ⌥ (option) key and clicking anywhere on the desktop.
Currently having a blast redesigning Plugin Planet, so much work so little time.
Thanks to David McCan over at WebTNG for the awesome BBQ Pro review.
Enjoyed a nice mini-vacation with my fam. Great way to recharge and regroup.
Nice little interview with yours truly over at ThemeIsle. WordPress, web dev & more!
Perishable Press celebrating 16 years online! An incredible, rewarding journey.
Thanks to Nicholas Ferrell for his excellent and thorough review of Wutsearch search-engine launchpad.
Newsletter
Get news, updates, deals & tips via email.
Email kept private. Easy unsubscribe anytime.