John Cox

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Tagged development · everything

Interesting

www.petefreitag.com

AJAX Tutorial with Prototype

This is a tutorial demonstrating a practical AJAX implementation using the Prototype JavaScript library, where a zip code input field triggers real-time server lookups to display the corresponding city and state. The example walks through the complete setup—including HTML form structure, client-side JavaScript that fires on each keystroke using Prototype's Ajax.Updater, and server-side ColdFusion code that queries a zip code database and returns formatted results or error messages. The tutorial illustrates core AJAX concepts like asynchronous requests, DOM manipulation, and error handling in a simple, accessible way suitable for beginners.

Permalink developmenttutorialajax

www.sanisoft.com

http://www.sanisoft.com/ziploc/

phpZipLocator is a PHP class that calculates distances between zip codes and identifies all zip codes within a specified radius by querying a database of zip code geographic data. Installation requires downloading the class files, setting up a MySQL database with the provided zip code table, and configuring database credentials in a configuration file. The tool outputs distance measurements in miles and can return lists of nearby zip codes, making it useful for location-based web applications.

Permalink developmenttoolstutorialopensource

ActiveCollab

activeCollab - open source project management and collaboration tool.

This is a marketing page for ActiveCollab, a project management and productivity platform designed for agencies, consultancies, and service businesses. The tool integrates task management, workload tracking, team communication, time tracking, invoicing, and reporting into a single workspace to help teams stay organized, meet deadlines, and manage profitability. The platform emphasizes ease of use, transparency, and scaling capabilities while maintaining quality standards, and serves over 50,000 teams daily.

Permalink productivitycollaborationdevelopmentbusiness

Basecamp

Project collaboration, management, and task software: Basecamp

This is Basecamp's marketing homepage pitch for their project management software. They're positioning Basecamp as a deliberately simple alternative to bloated project management tools, emphasizing that after 20+ years and nearly a million users worldwide, their longevity proves the product actually works for real teams across different industries. The appeal centers on ease of use, reliable customer service (with unusually long-tenured support staff), and impressive scale metrics, with an invitation to try it free or attend a live demo class.

Permalink productivitysoftwaredevelopmentbusiness

code.google.com

troels.arvin.dk

Comparison of different SQL implementations

This page compares how different database management systems (PostgreSQL, DB2, MS SQL Server, MySQL, Oracle, and Informix) implement various SQL features and operations, showing which products follow the SQL standard and where they diverge. It covers everything from basic SELECT and INSERT syntax to data types, functions, metadata queries, and command-line operations, serving as a practical guide for developers porting SQL code between different database platforms. The author acknowledges the page is no longer actively maintained but provides extensive side-by-side feature comparisons with code examples for each DBMS's approach to standard SQL functionality.

Permalink developmentdatabasetutorialsql

www.lalabird.com

www.databaseanswers.org

Library of Free Data Models

I appreciate you sharing this content, but this appears to be promotional copy for a database design educational website rather than a saved article to summarize. If you have a specific article you'd like me to summarize, please paste the actual article text and I'll be happy to write a two-to-three sentence summary explaining what it argues or reports.

Permalink developmentdatabasetutorialsql

www.dhtmlgoodies.com

Folder tree with Drag and Drop capabilities

This page provides documentation for a JavaScript drag-and-drop folder tree widget, including download links for all necessary files (HTML, CSS, JavaScript, and PHP backend components). It explains how to configure the tree using HTML list attributes, initialize it with JavaScript, and implement features like renaming, deleting, and persisting node changes via Ajax or form submission. The script is distributed under LGPL with commercial licensing options available.

Permalink diydevelopmenttutorialopensource

www.developerdotstar.com

Test Smarter, Not Harder by Scott Sehlhorst - developer.*, Developer Dot Star

Exhaustive testing of complex software with millions of input combinations is economically impractical, so this article presents more efficient testing strategies based on statistical sampling and combinatorial analysis. Random sampling requires prohibitively large test suites for high quality standards, while pairwise and N-wise testing (particularly N=3) can achieve 90% code coverage with dramatically fewer tests—reducing a 2.3 million-combination scenario to just 179 tests. The article further demonstrates how applying knowledge of the application architecture—such as mapping control dependencies, grouping related inputs, and eliminating equivalent values—can reduce test suite size even further, achieving strong quality assurance within realistic budgetary constraints.

Permalink softwaredevelopmenttutorial

byster.net

bugs.php.net

PHP Bugs: #37276: problems witch $_POST array

A PHP 5.1.3 bug caused $_POST arrays with nested keys (like `masivasid[id_1]` and `masivasid[id_2]`) to be parsed incorrectly when forms were submitted with `multipart/form-data` encoding, resulting in malformed array structures where later keys would be nested under earlier ones instead of existing at the same level. The issue affected all Linux systems tested and did not occur with GET requests, breaking functionality in applications like phpMyAdmin, with users identifying the likely culprit as the `php_register_variable_ex` function in the PHP source code.

Permalink developmentbug

lnx.googlewrite.com

OpenID Foundation - Helping people assert their identity wherever they choose

CodeWalkers: Practical AI Coding and Programming Guides

codewalkers.com - php tutorials - Overlapping Images with GD - PHP Help

CodeWalkers organizes its archive of PHP and web development tutorials into intentional learning paths rather than isolated reference pages, emphasizing that each step builds on previous ones so developers understand how features integrate rather than copying standalone snippets. The PHP track progresses from basic dynamic sites through MySQL, search, and finally APIs—an order that matters because earlier lessons establish the request shape and database boundaries that later features must respect. The guide recommends starting with foundational references (PDO, SQL, security, authentication) before diving into project tutorials, and it clarifies which layer you're actually learning at each moment—whether the challenge is really PHP, SQL, HTML/CSS, APIs, or DevOps—so you can follow the right path instead of trying to absorb everything at once.

Permalink developmenttutorial