PHP: Learn PHP In A DAY! - The Ultimate Crash Course to Learning the Basics of the PHP In No Time (PHP, PHP Programming, PHP Course, PHP Development, PHP Books) by Acodemy

Author:Acodemy [Acodemy]
Language: eng
Format: epub, pdf
Published: 2015-04-24T18:30:00+00:00

Pre-defined functions

PHP comes built with many pre-defined functions and this is what makes PHP so efficient and useful. We cannot possible examine all of the PHP functions as this will take another book itself (currently, the PHP documentation lists 9457 built in functions.). Let’s start with the most basic functions that can be used inside of PHP.

Echo, Print, exit, die

Echo

Echo is the language construct in PHP that allows us to output string data. PHP will automatically convert numerical variables to strings. We’ve already used echo in previous examples in this book, so you should be familiar with this function by now.

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