PHP 7.1 in 5 minutes

Ian Littman / @iansltx

Nullable Types

function get(?int $id) : ?MyObject {
    // return either a MyObject or null
}

Class Constant Visibility

class MyObject
{
    protected const SECRET = "yoloswag";
}

Void Return Types

function executeAThing() : void
{
    // doesn't return anything
}

Short List Syntax

[$a, $b, $c] = returnsAThreeLengthArray();

iterable pseudo-type

function doAThingOnASet(iterable $set)
{
    // foreach over a thing
    // array or Traversable
}

Gotta catch 'em all

try {
    // do something risky
} catch (BadThing | BlackSwanEvent $e) {
    // handle these exception types
}

Closure::fromCallable()

$strlenIsNowAClosure = 
    Closure::fromCallable('strlen');

...and more!

• Async pcntl handling
• HTTP/2 Server Push support in cURL
• AEAD in OpenSSL
• Negative string offset support in more places
• Edge case cleanup
• ...and more!

Thanks!