PHP short-ternary ("Elvis") operator vs null coalescing operator
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 (if that …
syntax - What does "->" or "=>" mean in PHP? - Stack Overflow
Jun 2, 2024 · 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 …
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 is the use of the @ symbol in PHP? - Stack Overflow
Jun 23, 2009 · I have seen uses of @ in front of certain functions, like the following: $fileHandle = @fopen($fileName, $writeAttributes); What is the use of this symbol?
What is the .= (dot equals) operator in PHP? - Stack Overflow
What is the .= (dot equals) operator in PHP? [duplicate] Asked 16 years, 2 months ago Modified 2 years, 11 months ago Viewed 2k times
What does $$ (dollar dollar or double dollar) mean in PHP?
Jun 23, 2016 · What does $$ (dollar dollar or double dollar) mean in PHP? Asked 15 years, 6 months ago Modified 3 years ago Viewed 75k times
?: operator (the 'Elvis operator') in PHP - Stack Overflow
Jan 3, 2010 · And that's make the Elvis operator kinda useless in PHP imo. The Elvis operator evaluate an expression and if it's true, it returns it else it return the last part.
What does ${ } mean in PHP syntax? - Stack Overflow
Jun 5, 2013 · ${ } (dollar sign curly bracket) is known as Simple syntax. It provides a way to embed a variable, an array value, or an object property in a string with a minimum of effort. If a …
How do I get PHP errors to display? - Stack Overflow
However, this doesn't make PHP to show parse errors occurred in the same file. Also, these settings can be overridden by PHP. In these cases the only way to show those errors is to …
How to call a PHP function on the click of a button
I have created a page called functioncalling.php that contains two buttons, Submit and Insert. I want to test which function is executed when a button gets clicked. I want the output to appear …