ThijsFeryn

<?php
/**
 * Scalar type declarations
 */

//declare(strict_types=1);
function add(int $a, int $b) {
    return $a + $b;
}

ThijsFeryn

<?php
/**
 * Return type declarations
 */

//declare(strict_types=1);
function add(int $a, int $b): int{
    return (string)($a + $b);
}

ThijsFeryn

<?php
/**
 * Anonymous classes
 */

$foo = new class {
    public function foo() {
        return "bar";
    }
};

ThijsFeryn

<?php
/**
 * Closure::call()
 */

class Foo
{
    private $foo = 'bar';
}

ThijsFeryn

<?php
/**
 * Generator delegation
 */

function gen()
{
    yield 1;
    yield 2;
    yield from gen2();

ThijsFeryn

<?php
/**
 * Generator return expressions
 */

$gen = (function() {
    yield 1;
    yield 2;

    return 3;

ThijsFeryn

<?php
/**
 * Null coalesce operator
 */

$array = ['foo'=>'bar'];

//PHP5 style
$message = isset($array['foo']) ? $array['foo'] : 'not set';
echo $message.PHP_EOL;

ThijsFeryn

<?php
/**
 * Space ship operator
 */

$array = [
    "1 <=> 1" => 1 <=> 1,
    "1 <=> 2" =>1 <=> 2,
    "2 <=> 1" => 2 <=> 1
];

ThijsFeryn

<?php
/**
 * Throwable interface
 */


//Error as Throwable
try {
    sqdf();
} catch (Throwable $t) {

ThijsFeryn

<?php
/**
 * Dirname levels
 */

echo dirname('/usr/local/bin').PHP_EOL;
echo dirname('/usr/local/bin',1).PHP_EOL;
echo dirname('/usr/local/bin',2).PHP_EOL;
echo dirname('/usr/local/bin',3).PHP_EOL;