PHP is a very fast programming language, but there is more to optimizing PHP than just speed of code execution.
A crucial part of developing successful web applications is optimizing the files that comprise them. When using scripting languages such as ASP and PHP, enhancement of dynamic pages is especially important. Speed optimization affects how users perceive the efficiency and fluidity of an application, while value optimization (enhancing the readability and reusability) of the code […]
PHP pages have a reputation of being more difficult (or at least different) to SEO than static HTML pages. Here?s an overview of the major issues encountered when trying to optimize PHP script for search engines. While this focuses on PHP much of it is still relevant to SEO’ing dynamic pages in general.
More detail: www.stargeek.com/php-seo.php
Optimization is the process of fine-tuning a program to increase speed or reduce memory usage. Memory usage is not as important as it once was, because memory is relatively inexpensive. However, shorter execution times are always desirable.
More detail: www.zend.com/zend/trick/trick-optimizing-php.php