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 vote57 views1 answer
Numberformatter gujarati
PHP
18 votes87 views4 answers
Use if in laravel blade
PHP
13 votes136 views5 answers
Zsh: command not found: laravel
PHP Laravel
61 votes105 views6 answers
Php current date
PHP
5 votes114 views2 answers
In laravel date duration validation rule
PHP Laravel
6 votes104 views4 answers
Php check if string is integer
PHP
17 votes105 views3 answers
Php refresh page without reloading
PHP
0 vote93 views1 answer
The configuration file now needs a secret passphrase (blowfish_secret)
PHP
1 vote111 views2 answers
Create child theme in wordpress
PHP
3 votes110 views1 answer
Wordpress base theme child url
PHP Wordpress