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 vote244 views1 answer
HP officejet pro 8720 default password
PHP
0 vote229 views1 answer
Remove controller cache laravel
PHP Laravel
0 vote293 views1 answer
Debian php switch version
PHP
0 vote159 views1 answer
Wp+get author box in dashboard
PHP
0 vote288 views1 answer
Laravel pass multipale provider
PHP Laravel
0 vote178 views2 answers
Laravel collection sort by date
PHP
0 vote170 views1 answer
Header remove php
PHP
0 vote237 views1 answer
Morph laravel without classes name
PHP Laravel
1 vote164 views1 answer
Run jobs laravel
PHP
1 vote250 views1 answer
Laravel images mimetypes validatiion
PHP