
PHP short-ternary ("Elvis") operator vs null coalescing operator
593 Can someone explain the differences between ternary operator shorthand (?:) and null coalescing operator (??) in PHP? When do they behave differently and when in the same way …
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.
What does "=>" mean in PHP? - Stack Overflow
Arrays in PHP are associative arrays (otherwise known as dictionaries or hashes) by default. If you don't explicitly assign a key to a value, the interpreter will silently do that for you.
What is the .= (dot equals) operator in PHP? - Stack Overflow
What is the .= (dot equals) operator in PHP? [duplicate] Asked 16 years, 3 months ago Modified 3 years ago Viewed 2k times
operators - Not equal to != and !== in PHP - Stack Overflow
Not equal to != and !== in PHP [duplicate] Asked 15 years, 2 months ago Modified 5 months ago Viewed 286k times
Reference Guide: What does this symbol mean in PHP? (PHP Syntax)
What is this? This is a collection of questions that come up now and then about syntax in PHP. This is also a Community Wiki, so everyone is invited to participate in maintaining this list. This …
What is <=> (the 'Spaceship' Operator) in PHP 7? - Stack Overflow
May 21, 2015 · PHP 7 introduced the Spaceship (<=>) operator. What is it and how does it work?
What does the percent sign mean in PHP? - Stack Overflow
Dec 19, 2009 · What does the percent sign mean in PHP? Asked 15 years, 10 months ago Modified 6 years ago Viewed 76k times
How to call a PHP function on the click of a button
Calling a PHP function using the HTML button: Create an HTML form document which contains the HTML button. When the button is clicked the method POST is called.
'At' symbol before variable name in PHP: @$_POST
Dec 10, 2015 · Since php 7.0, the null coalescing operator is a more straightforward alternative to silencing warnings in that case. The ?? operator was designed (among other things) for that …