PHP short-ternary ("Elvis") operator vs null coalescing operator
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).
How do the PHP equality (== double equals) and identity
Aug 7, 2023 — 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.
php - What does "===" mean? - Stack Overflow
In PHP you may compare two values using the == operator or === operator. The difference is this: PHP is a dynamic, interpreted language that is not strict on data types. It means that the language itself will try to convert data types, whenever needed. echo 4 + "2"; // output is 6.
What is the use of the @ symbol in PHP? - Stack Overflow
Jun 23, 2009 — 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?
syntax - What does "->" or "=>" mean in PHP? - Stack Overflow
2 => 'Up', 3 => 'Down'. The object operator, ->, is used in object scope to access methods and properties of an object. It’s meaning is to say that what is on the right of the operator is a member of the object instantiated into the variable on the left side of …
What's the difference between :: (double colon) and -> (arrow) in …
Jul 4, 2010 — 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 ...
Using AND/OR in if else PHP statement - Stack Overflow
Dec 10, 2010 — In php both AND, && and OR, || will work in the same way. If you are new in programming and php is one of your first languages them i suggest using AND and OR, because it increases readability and reduces confusion when you check back.
syntax - What does '<?=' mean in PHP? - Stack Overflow
Note that the ; is redundant; as the answers suggest this short-tag expands to an echo with a semicolon added to the end, as per the php documents. – not-just-yeti Commented Oct 5, 2015 at 1:25
What is <=> (the 'Spaceship' Operator) in PHP 7? - Stack Overflow
May 21, 2015 — The <=> ("Spaceship") operator will offer combined comparison in that it will : The rules used by the combined comparison operator are the same as the currently used comparison operators by PHP viz. <, <=, ==, >= and >. Those who are from Perl or Ruby programming background may already be familiar with this new operator proposed for PHP7.
php - How to create a newline character? - Stack Overflow
For some reason, every single post asking about newline escapes in PHP fails to mention the case that simply inserting a newline into single-quoted strings will do exactly what you think: ex 1. echo 'foo\nbar';