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All of a sudden, I feel to drop a few lines on this topic when it came to my mind. It may be an outdated topic and most people already aware of this but I believed that thought sharing  is always a good thing to do. Recently, ...

http://www.onlamp.com/pub/a/php/2006/01/26/mvc_view.html

http://blogs.vinuthomas.com/2008/03/16/asido-php-image-processing-solution/

http://www.phpied.com/simultaneuos-http-requests-in-php-with-curl/

http://funkatron.com/inspekt/user_docs/

http://www.koffeekoder.com/ArticleDetails.aspx?id=334

http://www.developertutorials.com/tutorials/php/floating-point-comparisons-in-php-and-javascript-8-01-05/page1.html

http://www.ibm.com/developerworks/opensource/library/os-php-regex1/index.html?ca=drs-tp0108

http://tomayko.com/articles/2004/12/12/rest-to-my-wife http://en.wikipedia.org/wiki/Representational_State_Transfer 

http://devzone.zend.com/article/2772-An-Introduction-to-the-Art-of-Unit-Testing-in-PHP