jazzdan

<?hh
declare(strict_types=1);

function myLog(string $message=null): string {
  if ($message === null) {
    return '';
  } else {
    return $message;
  }
}

jazzdan

<?hh
declare(strict_types=1);

function myLog(?string $message=null): string {
  if ($message === null) {
    return '';
  } else {
    return $message;
  }
}

jazzdan

<?php
declare(strict_types=1);

function add(float $a, float $b): float {
    return $a + $b;
}

echo add(1, 2);

jazzdan

<?hh

function myLog(string $message): string {
  return $message;
}

jazzdan

<?hh // strict

class Caller {
  public function set(string $property_name, Foo $object): void {
    $object->$property_name = 'poopy';
  }
  public function call(string $property_name, Foo $object): string {
  	return $object->$property_name;
  }
}

jazzdan

hhvm.log.use_syslog = false
hhvm.log.use_cronolog = true
hhvm.log.use_log_file = true
hhvm.log.file = /var/log/hhvm/hhvm.log-%Y-%m-%d
hhvm.log.sym_link = /var/log/hhvm/hhvm.log
hhvm.log.always_escape_log = false
hhvm.log.header = true
hhvm.log.always_log_unhandled_exceptions = false

jazzdan

<?hh

class Wrapper<Tval as num> { 
  private Tval $value;

  public function __construct(Tval $value) { 
    $this->value = $value;
  }
  public function setValue(Tval $value): void {
    $this->value = $value;

jazzdan

<?hh

class Wrapper<Tval as num> { 
  private Tval $value;

  public function __construct(Tval $value) { 
    $this->value = $value;
  }
  public function setValue(Tval $value): void {
    $this->value = $value;

jazzdan

<?php

class Foo {
    public function shape($bar, $baz) {

    }
}

jazzdan

<?hh

interface ExceptionWithCode {
    public function getCode();
}

class Checkout_Exception extends Exception implements ExceptionWithCode {
    protected $data = [];
    
    public function __construct($msg = "", $code = 0, $data = []) {