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

3 votes174 views6 answers
Php remove value from array if exists
PHP
0 vote162 views1 answer
Lista
PHP
0 vote160 views2 answers
Laravel download file from s3
PHP
1 vote159 views2 answers
Array_unique multidimensional php
PHP
2 votes146 views2 answers
Filename php
PHP
0 vote156 views1 answer
Download image from mysql using php
PHP
3 votes159 views2 answers
Undefined method JeroenNoten\LaravelAdminLte\Helpers\MenuItemHelper::isSearchBar()
PHP
1 vote153 views1 answer
Tcpdf error unable to create output file in php
PHP
1 vote176 views1 answer
How to add attribute to the request object in laravel
PHP
10 votes170 views3 answers
A facade root has not been set laravel 7
PHP