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  Execute PHP from a .html File

How can I execute PHP code on my existing myfile.html page?:When a web page is accessed, the server checks the extension to know how to handle the page. Generally speaking if it sees a .htm or .html file, it sends it right to the browser because it doesn't have anything to process on the server. If it sees a .php extension (or .shtml, or .asp, etc), it knows that it needs to execute the appropriate code before passing it along to the browser. Here is the problem: You find the perfect ...

4,791 0          PHP HTML PHP IN HTML ADDTYPE


  Using PHP sessions across subdomains

By default, PHP uses the 'PHPSESSID' cookie to propagate session data across multiple pages, and by default it uses the current top-level domain and subdomain in the cookie declaration. Example: www.domain.com The downside to this is that the session data can't travel with you to other subdomains. So if you started a session on www.domain.com, the session data would become unavailable on forums.domain.com. The solution is to change the domain PHP uses when it sets the 'PHPSESSID' cookie. ...

12,049 0          PHP SESSION AVAILABILITY SUBDOMAIN


  What to Look for in PHP 5.4.0

PHP 5.4.0 will arrive soon. The PHP team is working to bring to some very nice presents to PHP developers. In the previous release of 5.3.0 they had added a few language changes. This version is no different. Some of the other changes include the ability to use DTrace for watching PHP apps in BSD variants (there is a loadable kernel module for Linux folks). This release features many speed and security improvements along with some phasing out of older language features (Y2K ...

2,192 0          PHP NEW FEATURE TRAIT 5.4 BUILT-IN SERVER


  Cracks in the Foundation

PHP has been around for a long time, and it’s starting to show its age. From top to bottom, the language has creaky joints. I’ve decided to take a look at how things got to this point, and what can be (and is being) done about it. I start out pretty gloomy, but bear with me; I promise it gets better. In the Beginning, There Was Apache and CGI And there was much rejoicing. In 1994, Rasmus Lerdorf created the “Personal Home Page Tools,” a set of CGI binaries written in C. These t...

2,163 0          PHP HISTORY FOUNDATION DESIGN COMPATIBILITY


  How big are PHP arrays (and values) really? (Hint: BIG!)

Upfront I want to thank Johannes and Tyrael for their help in finding some of the more hidden memory usage. In this post I want to investigate the memory usage of PHP arrays (and values in general) using the following script as an example, which creates 100000 unique integer array elements and measures the resulting memory usage: <?php $startMemory = memory_get_usage(); $array = range(1, 100000); echo memory_get_usage() - $startMemory, ' bytes'; How much would you expect it to ...

1,657 0          PHP ARRAY MEMORY OCCUPATION GARBAGE COLLECTION


  10 rules of PHP-masters

1. Use PHP only when it is necessary – Rasmus Lerdorf There is no better source than the creator of PHP, to learn what he can do. Rasmus Lerdorf created PHP in 1995. Since then, the language has spread like a wildfire rate in the developer community, incidentally changing the face of the Internet. However, Rasmus did not create PHP with these intentions. PHP was created for the needs of web development. As is the case with many other projects with op...

6,610 0          PHP EXPERIENCE ADVICE MASTER


  Easy Parallel Processing in PHP

The proliferation of multicore CPUs and the inability of our learned CPU vendors to squeeze many more GHz into their designs means that often the only way to get additional performance is by writing clever parallel software. One problem we were having is that some of our batch processing jobs were taking too long to run. In order to speed the processing, we tried to split the processing file into half, and let a separate PHP process run each job. Given that we were using a dual core serv...

2,447 0          PHP PARALLEL PROCESSING MULTITHREADING LIKE SLEEP


  PHP's Output Buffering

While profiling our application I came across a a rather strange memory usage by the ob_start() function. We do use ob_start() quite a bit to defer output of data, which is a common thing in many applications. What was unusual is that 16 calls to ob_start() up chewing through almost 700kb of memory, given that the data being buffered rarely exceeds 1-2kb, this was quite unusual. I started looking at the C code of the ob_start() function and found this interesting bit of code inside php_sta...

3,189 0          PHP MEMORY OB_START() SOURCE 40KB