PHP Basics: While Loop

Web Reference: PHP Double Equals == equality chart: PHP Triple Equals === Equality chart: Source code to create these images: PHP equality charts Guru Meditation Those who wish to keep their sanity, read no further because none of this will make any sense, except to say that this is how the insanity-fractal, of PHP was designed. NAN != NAN but NAN == true. The PHP 7.0 migration docs has this to say: The null coalescing operator (??) has been added as syntactic sugar for the common case of needing to use a ternary in conjunction with isset (). As of PHP 5.3: Since PHP 5.3, it is possible to leave out the middle part of the ternary operator. Expression expr1 ?: expr3 returns expr1 if expr1 evaluates to TRUE, and expr3 otherwise. As of PHP 7.0 PHP 7 has new Null Coalesce Operator. This is the same as a ternary but is also called an "isset ternary".

YouTube Excerpt: In this tutorial I discuss the basic syntax and usage of the while loop. The while loop loops until an event occurs, and is generally speaking, more powerful than a PHP for loop, but they should not be thought of as interchangeable. This video provides two anecdote examples as to the usage, and attempts to explain when they should be used. If you have an comments or questions, please feel free to ask!

In this tutorial I discuss the basic syntax and usage of the while loop. The while loop loops until an event occurs, and is generally speaking,...

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