2023年8月7日 · 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.

Elvis ?: returns the first argument if it contains a "true-ish" value (see which values are considered loosely equal to true in the first line of the Loose comparisons with == table).

In very plain language, what happens is that whatever is stored in each variable is converted to a string and then each string is placed into a final variable that includes each value of each variable put together.

2024年6月2日 · since PHP 7.4 => operator is also used for the arrow functions, a more concise syntax for anonymous functions. since PHP 8.0 => operator is also used to define hands in the match expression Share

Anyway as of today I hope you guys doesn't have any production servers running PHP < 5.6 as this versions are not maintained anymore (PHP Supported Versions). – TwystO Commented Dec 4, 2018 at 11:25

2009年6月23日 · Like already some answered before: The @ operator suppresses all errors in PHP, including notices, warnings and even critical errors. BUT: Please, really do not use the @ operator at all. Why?

2010年7月4日 · The difference between static and instantiated methods and properties seem to be one of the biggest obstacles to those just starting out with OOP PHP in PHP 5. The double colon operator (which is called the Paamayim Nekudotayim from Hebrew - trivia) is used when calling an object or property from a static context. This means an instance of the ...

I need help modifying this PHP function to support nested IFs when transforming a string excel-type formula to a valid PHP ternary expression I need help refactoring this function so that it can effectively handle nested IF formulas.

consts are always case sensitive, whereas define() allows you to define case insensitive constants by passing true as the third argument (Note: defining case-insensitive constants is deprecated as of PHP 7.3.0 and removed since PHP 8.0.0):

2009年11月5日 · php -S was only added in php 5.4 which was released in 2012. So when I wrote my answer in 2009, there was no such option. So when I wrote my answer in 2009, there was no such option. And as of today in the year of 2020, the time machine has not been invented yet.