Why does PHP use arrow?

An arrow function provides a shorter syntax for writing a short anonymous function. An arrow function starts with the fn keyword and contains only one expression, which is the returned value of the function. An arrow function have the access to the variables in its parent scope automatically.

What is the difference between DOT and arrow operator?

The Dot(.) operator is used to normally access members of a structure or union. The Arrow(->) operator exists to access the members of the structure or the unions using pointers.

What is => used for in PHP?

Answer: In PHP => is known as a double arrow operator or used as an associative array. This array is used to provide name keys. That means the named key will have an only value which you’ll assign that associative array.

What is the difference between double colon and arrow in PHP?

Answer #2: The arrow means the addChild is called as a member of the object (in this case $sxe). The double colon means that addChild is a member of the SimpleXMLElement class.

What does => mean in laravel?

-> and => are both operators. The difference is that => is the assign operator that is used while creating an array. For example: array(key => value, key2 => value2) And -> is the access operator. It accesses an object’s value.

What does -> mean in programming?

c pointers dereference. The dot ( . ) operator is used to access a member of a struct, while the arrow operator ( -> ) in C is used to access a member of a struct which is referenced by the pointer in question.

What is the use of dot operator?

The . (dot) operator is used to access class, structure, or union members. The member is specified by a postfix expression, followed by a . (dot) operator, followed by a possibly qualified identifier or a pseudo-destructor name.

What does -> and => mean in PHP?

-> is used to call a method, or access a property, on the object of a class. => is used to assign values to the keys of an array. And since PHP 7.4+ the operator => is used too for the added arrow functions, a more concise syntax for anonymous functions.

What does question mark mean in PHP?

Null Coalescing Operator
In PHP 7, the double question mark(??) operator known as Null Coalescing Operator. It returns its first operand if it exists and is not NULL; otherwise, it returns its second operand. It evaluates from left to right. Null Coalescing operator also can be used in a chain format.

What does accessing a class via :: means?

The :: is to access static methods, constants or overridden methods.

What does :: mean in laravel?

Basically its know as Scope resolution operator (::) Simply it is token which allow access to static, constant and overridden properties of method of a class. Example- in laravel we call model like this.