The PHP 7 function is explained with code examples

The PHP 7 function is explained with code examples.

PHP 7 is the latest version of PHP released last year. The PHP community has introduced several new features in the latest version. In this tutorial, we will learn about the new features added in PHP 7.

The best thing about PHP 7 is its speed. It is based on PHPNG (PHP Next-Gen), which inspired the Zend team to speed up PHP applications. According to the benchmark presented by the Zend performance team, the performance gain from PHP 7 is huge! This means that PHP code will run much faster and take up less memory than previous versions.

Php 7 works

 

Php 7-step type hint

What are typing tips?

Type suggestions (or type statements) impose the expected data type of an argument on a function statement. If the function argument is of the wrong type, an error is dropped.

PHP is a weak typing language, which means that it does not force you to declare a data type. The type prompt allows you to type the expected data type for the function.

Before PHP 7, you could only write classes, tables, and tips for calls.

The first major improvement in PHP 7 is that you can give type hints for data grade types (such as integers, floating, strings, and boolean).

Let's understand climate type signals through an example

Class Employee

{

private $age;

private $name;

//Epect age of type integer and name of type string

public function __construct(int $age, string $name) {

$this->age   = $age;

$this->name  = $name;

}

public function getAge() {

return $this->age;

}

public function getName() {

return $this->name;

}

}