PHP 7: What you need to know

michaelcullumuk PHP 7 What you need to know PHP Surrey
October 2015

michaelcullumuk

michaelcullumuk void Cos(void) { Stack *s; char temp[64]; s =
Pop(); if(!s) { Error("Stack error in cos"); return; } sprintf(temp,"%f",cos(s->douval)); Push(temp,DNUMBER); } <html><head><title>Cos Example</title></head> <body><h1>Cos Example</h1> <?echo Cos($input)> </body></html>

michaelcullumuk PHP 6

michaelcullumuk

michaelcullumuk •Gigabyte Z87X-UD3H i7-4771 4 cores @ 3.50GHz w/ 16G
of Ram @ 1600MHz •Hyperthreading enabled for a total of 8 virtual cores •Toshiba THNSNHH256GBST SSD •Linux debian 3.16.0-4-amd64 #1 SMP Debian 3.16.7- ckt9-2 (2015-04-13) x86_64 GNU/Linux •MySQL 5.6.24 •nginx-1.6.2 + php-fpm for all tests unless indicated otherwise •Quiet local 100Mbps network •siege benchmark tool run from a separate machine

michaelcullumuk

michaelcullumuk PHPNG

michaelcullumuk

michaelcullumuk function getArray(): array { return 42; } getArray ();
function get_config(): int { return 42; } get_config(); \TypeError Yay Return value of getArray() must // be of the type array, integer returned in %s on line %d

michaelcullumuk function fooBar(string $foo, int $bar, float $test, int $Michael)
{ var_dump($foo); // string(1) "1" var_dump($bar); // int(2) var_dump($test); // float(3) var_dump($Michael); // int(1) } fooBar(1, "2.5", 3, “1 Michael", );

michaelcullumuk declare(strict_types=1);

michaelcullumuk <?php declare(strict_types=1); Namespace Phpbb/Sub/AwesomeClass; public function fooBar(string $foo, int
$bar, float $test, int $Michael) { return $this; } fooBar(1, "2.5", 3, “1 Michael");

michaelcullumuk class AnObject extends BaseObject { public function getInterface() {
return new class implements MyInterface { /* ... */ }; } }

michaelcullumuk return new class($foo) implements AwesomeInterface { public function __construct($foo)
{ return $this; } };

michaelcullumuk $a = isset($foo) ? $foo : “bar";

michaelcullumuk echo $a ?? $b; // NULL echo $c ??
$b; // 2 echo $a ?? $b ?? $c; // 2 echo $a ?? $x ?? $c; // 2 echo $var ?? $foo ?? $undeclared; // NULL $a = NULL; $b = NULL; $c = 2;

michaelcullumuk function oldWay($a, $b) { return ($a < $b) ?
-1 : (($a >$b) ? 1 : 0); } function newWay($a, $b) { return $a <=> $b; }

michaelcullumuk Operator Equivalent with Flying Saucers! $a < $b ($a
<=> $b) === -1 $a == $b ($a <=> $b) === 0 $a > $b ($a <=> $b) === 1 $a != $b ($a <=> $b) !== 0 $a <= $b ($a <=> $b) === -1 || ($a <=> $b) === 0 $a >= $b ($a <=> $b) === 1 || ($a <=> $b) === 0

michaelcullumuk function call_method($obj) { $obj->method(); } call_method(null); // Fatal error:
Call to a member function method() on a non-object

michaelcullumuk try { call_method(null); } catch (\Error $e) { echo
"Exception: {$e->getMessage()}\n"; }

michaelcullumuk • Interface Throwable oException implements Throwable oError implements Throwable
• TypeError extends Error • ParseError extends Error

michaelcullumuk define('ANIMALS', [ 'dog', 'cat', 'bird' ]); echo ANIMALS[1]; //
outputs "cat"

michaelcullumuk // Pre PHP 7 code use some\namespace\ClassA; use some\namespace\ClassB;
use some\namespace\ClassC as C; use function some\namespace\fn_a; use function some\namespace\fn_b; use function some\namespace\fn_c; // PHP 7+ code use some\namespace\{ClassA, ClassB, ClassC as C}; use function some\namespace\{fn_a, fn_b, fn_c}; use const some\namespace\{ConstA, ConstB, ConstC}; use const some\namespace\ConstA; use const some\namespace\ConstB; use const some\namespace\ConstC;

michaelcullumuk string random_bytes(int length); int random_int(int min, int max);

michaelcullumuk • bool • int • float • string •
null • false • true • resource • object • mixed • numeric

michaelcullumuk And loads more….

michaelcullumuk http://php.net/manual/en /migration70.new- features.php

michaelcullumuk

michaelcullumuk Slides: Coming soon Twitter: @michaelcullumuk Thanks to Cal Evans
& Rasmus

michaelcullumuk PHP 7 What you need to know PHP Surrey
October 2015

PHP 7: What you need to know

PHP 7: What you need to know

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