Eden PHP Library. PHP fonctions, bibliothèque de fonctions PHP. 9 Useful PHP Functions and Features You Need to Know. Twice a month, we revisit some of our readers’ favorite posts from throughout the history of Nettuts+.
Even after using PHP for years, we stumble upon functions and features that we did not know about. Some of these can be quite useful, yet underused. With that in mind, I've compiled a list of nine incredibly useful PHP functions and features that you should be familiar with. 1. Functions with Arbitrary Number of Arguments.