![[ Image: Chain Linkage ]](https://perishablepress.com/wp/wp-content/images/2007/misc-chunks/symbolic-linkage.jpg)
On Unix systems, a symbolic link refers to a file that points to another file or directory. Symbolic links serve as powerful tools for web designers and developers. Using shell access, creating a symbolic link requires only one line of code: ln -s /home/username/public_html/directory1 /home/username/public_html/directory2 Simple enough. Assuming you have access to the linux shell. Unfortunately, many shared hosting environments deny shell access. Fortunately, creating symbolic links — also called “symlinks” — remains a possibility via the PHP symlink() function. […] Continue reading »
![[ Image: Abstracted Documents ]](https://perishablepress.com/wp/wp-content/images/2007/misc-chunks/abstracted-documents.jpg)
After studying Peter Kent’s excellent book, Search Engine Optimization for Dummies, several key methods emerged for optimizing websites for the search engines. Although the book is written for people who are new to the world of search engine optimization (SEO), many of the principles presented throughout the book remain important, fundamental practices even for the most advanced SEO-wizards. This article divulges these very useful SEO practices and organizes them into manageable chunks. Continue reading »
![[ Macromedia Flash ]](https://perishablepress.com/wp/wp-content/images/2007/misc-chunks/macromedia-fash.png)
In our previous article, Alternate JavaScript Slideshow for SlideshowPro, we present an elaborate method for providing alternate content specifically for SlideshowPro. Although the method points toward a more generalized adaptation, its overall functional implementation remains focused on the presentation of slideshows. Continue reading »
![[ Photo Slideshow Example ]](https://perishablepress.com/wp/wp-content/images/2007/misc-chunks/photo-slideshow-example.jpg)
For the unenlightened, SlideshowPro (SP) is a Flash-based slideshow-authoring system that delivers full-featured, high-end, Flash-based slideshows. Websites featuring SP slideshows present content in sophisticated fashion, inspiring users with elegant captions, beautiful transitions, and intuitive navigation. However, many visitors are unable to experience SP slideshows because they lack the requisite Flash support. SlideshowPro-based slideshows currently require Flash 7 or better to function. And, although Flash 7 is quite common, it is far from ubiquitous. In the “worst-case” scenario, Flash-challenged visitors will […] Continue reading »
This quick tutorial explains how to use HTML, JavaScript, and/or PHP to enable visitors to “go back” to the previous page. You can use either method to add a simple “go back” link or form button to your web pages. Continue reading »
Announcing the release of AddMySite (AMS) version 0.77. The new version features support for syndicated content feeds, and enables users to add their site’s feed to fifteen different feed-syndication and social-aggregator sites. Continue reading »
This quick tutorial explains how to add images to both Atom and RSS feeds. Although both formats allow for image-inclusion, feed-reader support for image-display is currently quite limited in most browsers and applications. Hopefully, that will change in the near future.. Continue reading »
![[ Macromedia Flash ]](https://perishablepress.com/wp/wp-content/images/2007/misc-chunks/embed-fash-video-object.png)
Here is a collection of code snippets for embedding Flash and video using the HTML <object></object> tag. Useful for sites showcasing dynamic multimedia content. Continue reading »
Behold the seventh wonder of the virtual world: max/min-height and max/min-width properties are possible in Internet Explorer! Indeed, by taking advantage of IE’s proprietary CSS attribute, expression, you too can whip IE widths and heights into desirable proportions. The CSS expression attribute enables JavaScript commands to be executed within Internet Explorer. JavaScript via CSS? Thanks, Microsoft! Continue reading »
In our previous article on creating spamless email links via JavaScript, the presented method, although relatively simple to implement, is not the most effective solution available. Spambots, email harvesters, and other online scumbags relentlessly advance their scanning technology, perpetually rendering obsolete yesterday’s methods. Continue reading »
This post is hereby dedicated to the official logging of all unresolved and/or unexplained errors encountered during development or implementation of various plugins, extensions, themes, scripts, and/or anything else that results in bizarre and mysterious errors, bugs, or other anomalies. Further, we will also post any potential solutions, fixes, workarounds, or explanations for any errors logged in this post. This information is provided for reference purposes only — please share any related information you may have concerning any of the […] Continue reading »
Hiding and filtering CSS rules for specifically targeted browsers is often a foregone conclusion when it comes to cross-browser design considerations. Rather than dive into some lengthy dialogue concerning the myriad situations and implications of such design hackery, our current scheduling restraints behoove us to simply cut to the chase and dish the goods. Having said that, we now consider this post a perpetually evolving repository of CSS filters.. Continue reading »
By using an <iframe></iframe> within a <div></div>, it is possible to include external web content in most any web document. This method serves as an excellent alternative to actual frames, which are not as flexible and definitely not as popular. Indeed, with CSS, the placement, sizing, and styling of div’s provides endless possibilities for embedding external or even internal web content into pages that would otherwise require the use of frames, Flash, or JavaScript. This method works on any modern […] Continue reading »
Note to WordPress 2.0.5 users: Everything was working fine on this site before upgrading to WP 2.0.5. After upgrading, apparently, our feeds stopped validating and the BDP RSS Aggregator plugin refused to update our own feeds. After several hours investigating the situation, we determined that the Live Comment Preview plugin was interfering with our feeds validating, while the upgraded WordPress (2.0.5) was responsible for problems with the BDP plugin. Continue reading »
After digging through the WordPress source code, I stumbled upon this very useful JavaScript method for auto-focusing form elements upon page load. Here is the JavaScript code (place within the document head): Continue reading »
Roll your own Apache Rewrite log! Rocking your own rewrite log is super-helpful for testing .htaccess rewrite rules, WordPress Permalinks, and much more. All you need is Apache 2.2 (or previous), mod_rewrite enabled (very common on most servers), and access to your server configuration file, http.conf. 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 