Type declaration php

Php 7

<?php
// Fetches the value of $_GET['user'] and returns 'nobody'
// if it does not exist.
$username = $_GET['user'] ?? 'nobody';
// This is equivalent to:
$username = isset($_GET['user']) ? $_GET['user'] : 'nobody';

// Coalescing can be chained: this will return the first
// defined value out of $_GET['user'], $_POST['user'], and
// 'nobody'.
$username = $_GET['user'] ?? $_POST['user'] ?? 'nobody';
?>

Source: php.net

Type declaration php

int $id;
function foo(): float {}

Php 7

<?php

function arraysSum(array ...$arrays): array
{
    return array_map(function(array $array): int {
        return array_sum($array);
    }, $arrays);
}

print_r(arraysSum([1,2,3], [4,5,6], [7,8,9]));

Source: php.net

Similar codes

0 vote355 views1 answer
Route login not defined how to laravel problems fixed
PHP Laravel
0 vote284 views3 answers
How to check if all values in an array are equal php
PHP
0 vote282 views2 answers
Column of csv to array php
PHP
0 vote284 views1 answer
Seguridad de las api en laravel
PHP
0 vote268 views1 answer
Run a server php with a specific folder terminal
PHP
34 votes296 views2 answers
Add a new column to existing table in a migration
PHP
1 vote277 views1 answer
Laravel using username instead of email
PHP
2 votes320 views1 answer
How get all files name in one folder in laravel
PHP Laravel
1 vote342 views1 answer
Add post meta wordpress
PHP Wordpress
0 vote273 views1 answer
Order by in datatable laravel
PHP