Implicit Evaluation with PHP Archives: Tutorial
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4 May 2007
Benchmarking PHP Threads
All threads can now both hear and report on conditions. A problem with the original send/recieve mechanism made threads hang the controlling thread while long operations were occurring.
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3 May 2007
Communicating with threads in PHP
Earlier this week, I suggested PHP could be multithreaded. The sample I provided was very simple and at least one reader quickly wondered how to communicate with threads.
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1 May 2007
Multi-threading strategies in PHP
PHP does not have threading anywhere in its massive core. We can, however, fake it by relying on the underlying operating system instead of PHP. This article will show you how.
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22 February 2007
Generating SQL Insert Queries
Its possible to generate a well formed SQL query with one line of PHP by capitalizing on lambda-style functional support.
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9 February 2007
The Implicit Isset
A guide discussing when to use isset and when to assume.
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30 January 2007
PHP as a Lambda Language
PHP is an imperative language which supports object-oriented programming. However, it supports a number of paradigms closer to what you would expect Lisp or Scheme to allow. I’ve discussed parts of this before, but its time to put together a definitive primer. You’ll learn ways to create entire functions at run time, as well as applying them to entire arrays in a single pass. PHP will seem more LISP-like than it ever has before.
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23 January 2007
What is $_REQUEST, or the difference between $_REQUEST, $_GET and $_POST
PHP provides you a number of “super-global” variables. These include $_GET, $_POST, $_COOKIE, $_SESSION, $_SERVER, $_ENV, $_FILES and $_REQUEST. Most of these are fairly self-explainatory. $_GET are the variables passed by forms with a GET method or after the end of the path such as example.com/search.php?GETARG1=GETVAL1&foo=bar. $_POST is any variable submitted by a form with […]
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18 January 2007
Loops in PHP
PHP gives programmers many varieties of loops to work with. Despite an overwhelming selection, each is tailored, really, to just one scenario.
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1 January 2007
Recursive Data Structures in PHP
Welcome to the Jungle
Today, I was helping a friend implement a recursive category model. There is a top level category and each category contains items and sub-categories.
It’s easy to illustrate on the web:
Top Level Category
Item 1.1
Item 1.2
Subcategory 1.3
Item 3.1
Item 3.2
Subcategory 1.4
Subcategory 4.1
Subcategory 4.1.1
Item 4.1.1.1
Item 4.1.1.2
Item 4.1.2
Somehow, your web browser can take a piece of text […]
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22 December 2006
Determining if method is a static class method or dynamic object method
Up until PHP5, there was no way to designate a function as static or instantiated. The difference is small, but important. Object methods can only be called through an instantiated object and have access to a class’s member variables. A static class method does not have access to object data but also needs not be […]