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.

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).

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.

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

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?

I remember reading a while back in regards to logical operators that in the case of OR, using || was better than or (or vice versa). I just had to use this in my project when it came back to me, b...

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

==and != do not take into account the data type of the variables you compare. So these would all return true: '0' == 0 false == 0 NULL == false

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 ...

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