https://stackoverflow.com › questions › 34571330

So, the difference between the two is that Null Coalescing operator operator is designed to handle undefined variables better than the ternary operator. Whereas, the ternary operator is a shorthand for if-else.

https://www.delftstack.com › fr › howto › php › null-coalescing-operator-php

Cet article différenciera l’opérateur de coalescence nulle et l’opérateur Elvis en PHP avec des démonstrations. Opérateur Elvis en PHP Tout d’abord, parlons de l’opérateur Elvis.

https://www.designcise.com › web › tutorial › whats-the-difference-between-null-coalescing...

?: (Elvis Operator) The elvis operator ( ?: ) is actually a name used for shorthand ternary (which was introduced in PHP 5.3). It has the following syntax: // PHP 5.3+ expr1 ?: expr2; This is equivalent to: expr1 ? expr1 : expr2; ?? (Null Coalescing Operator) The null coalescing operator ( ?? ) was introduced in PHP 7, and it has the ...

https://stackoverflow.com › questions › 1993409

Elvis operator:?: is the Elvis operator. This is a binary operator which does the following: Coerces the value left of ?: to a boolean and checks if it is true. If true it will return the expression on the left side, if false it will return the expression on the right side. Example:

https://apical.xyz › ... › operateur_de_fusion_null_vs_operateur_elvis

Opérateur Elvis (?:) L' opérateur Elvis et un opérateur binaire qui permet de préciser une valeur à utiliser lorsque le premier opérande est évalué à false . Il est disponible depuis PHP 5.3.

https://dev.to › mariuszmalek › difference-between-elvis-and-null-coalescing-operators-2a7a

The null coalescing operator checks whether the specified variable is null or not, and returns a non-null value from the value pair. The output of the null coalescing operator depends on whether the variable is null.

https://dev.to › thibaultchatelain › elvis-operator-vs-null-coalescing-operator-2l31

The Elvis operator and the Null coalescing operator are both binary operators that allow you to evaluate an expression/variable and define a default value when the expression/variable is not available. The Elvis operator is used to return a default value when the given operand is false.

https://stackoverflow.com › questions › 53610622

It's the "null coalescing operator", added in php 7.0. The definition of how it works is: It returns its first operand if it exists and is not NULL; otherwise it returns its second operand. So it's actually just isset() in a handy operator. Those two are equivalent 1: $foo = $bar ?? 'something'; $foo = isset($bar) ? $bar : 'something';