Introduce php7

안정수@findstar

내가 아는 Laravel Framework를 소개합니다. PHP7 으로 뛰어들기

안정수

Xpressengine 개발PHP, Java, Objective-c, react.js

@findstar

발표자 소개

1. PHP7 is coming

2. Performance

3. New features

4. PHP 버전 이야기

5. Migration

목차

1. PHP7 is Coming

PHP 7 Is ComingAre your Web Application Ready?

1-1. PHP7?

2015. 10월 PHP7이 나옵니다!

(현재 RC1)

PHP5.4

PHP5.5

PHP5.6

PHP6

PHP7

1-2. PHP6는 어디로 갔나요?

PHP6 는 없어요....

1-2. PHP6 망!

Unicode 지원등등..... 진행하다가 GG

1-3. PHP-NG(next generation)

PHP-NG : 원래 별도의 브랜치

=> 7.0 됨

주된 내용은 : PHP 리팩토링!

1-4. PHP7 internal?

Zend engine 3.0

Smaller data structures

Fewer allocations

Less indirection

1-5. ZVAL

PHP5 PHP7

ZVAL 32 bytes 16 bytes

HashTable 72 bytes 56 bytes

object 96 bytes 40 bytes

1-6. Memory management

Less heap, more stack

Redevelop a new heap and optimize

Cpu cache friendly

1-6. XE 에서 체험해보세요.

demo.xpressengine.com

2. Performance

3-1. Benchmark Test

XE1 - Board ab -k -c 50 -n 10000 http://xe1.app/

3-2. Benchmark Env

2012 mid Macbook Pro RetinaVagrant Rasmus Image

3-3. Benchmark Result

0

30

60

90

120

PHP 5.4 PHP 5.5 PHP 5.6 PHP 7.0

-1.66% 2.21% 40.11%

Request / Sec

80.6 79.2 80.9

113.34

XE - 게시판 목록 benchmark

3-5. 공식 Benchmark 4.4 ~ 7.0

짧은게 좋은겁니다..

0.8 PHP 7.0

참고 링크

3-6. WP - XE

0

30

60

90

120

PHP 5.6 PHP 7.0

WP 4.2.4

XE WP 4.2.4

XE

40.11%

102.4%

Requests / Sec

3-7. Local Composer

composer create-project laravel/laravel

php 5.6 : Memory usage: 160.27MB (peak: 222.83MB)

php 7.0 : Memory usage: 121.91MB (peak: 170.53MB)

23.42% 감소

3-8. Wordpress

워드 프레스 사이트가 php7 으로 구동환경을 바꾸었더니

CPU 자원 사용율이 72% 감소함

3-9. 결론

PHP7 = php5.6

PHP7 = php5.0

X 2

X 14

Speeeeeeeeeeeeed UP!

참고 링크

3. New features in PHP7

“PHP7”

3-1. Scalar type

function add(int $a, int $b) { return $a + $b }

echo add(1, 2); // 3

echo add(1.2, 2); // 3

3-1. Scalar type

declare(strict_types=1);

function add(int $a, int $b) { return $a + $b }

echo add(1, 2); // 3

echo add(1.2, 2); // TypeException

3-2. Return type

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

echo add(1, 2);

3-3. Spaceship operator

echo 2 <=> 2; // 0

echo 2 <=> 3; // -1

echo 2 <=> 1; // 0

3-3. Spaceship operator

function compareValue($a, $b){ return ($a < $b ) ? -1 : ( ($a > $b ) ? 1 : 0 );}

function compareValue2($a, $b){ return $a <=> $b;}

3-4. Engine Exceptions

BaseException abstract EngineException ParseException Exception ErrorException RuntimeException

fatals 대신 Exception

3-4. Engine Exceptions

class A { public function t(){ return 't called'; }}

$testa = new A();

echo $testa->aaa();

3-5. Group namespace

use BarLib\Bar\Foo\{ ClassA, ClassB, ClassC, ClassD as FooFoo };

3-6. Null Coalesce Operator

$username = isset($a)? $a : ‘foo’;

$username = $a?? ‘foo’;

3-7. Closure::call

class Foo{ public $bar;}$foo = new Foo;$foo->bar = 10;

$clo = function($a) { print_r($this->bar + $a );};

$clo->call($foo, 10);

3-8. Anonymous class

var_dump(new class(){});

object(class@anonymous)#1 (0) {}

3-9. Non static method call

class A{ function foo() { var_dump($this); }}class B{ function bar(){ A::foo(); }}

$b = new B;$b->bar();

4. Version of PHP

4-1 PHP 버전 지원

5.3 5.4

4-2 PHP 5.3 …..

4-3 지금 PHP 5.3, 5.4 쓰시나요?

4-4 하늘이 무너져도..

4-4 배포판의 보안 지원

CentOS 5.x php 5.3 2017 년 3월

CentOS 6.x php 5.3 2020년 11월

CentOS 7.x php 5.4 2024년 6월

Ubuntu 10.04 LTS php 5.3 , 지원중단.

Ubuntu 12.04 LTS php 5.3 2017년 4월

Ubuntu 14.04 LTS php 5.5.9

4-5 요약

5.3 과 5.4 를 사용중이시라면

버전을 올리시는게 좋습니다.

5. Migration

MISSION MIGRATION

5-1. Migration

in PHP 7 Doctrines..

- Do not fall into a “Python2 VS Python3” war

버전이 올라가도 하위 호한성을 유지합니다.

5-2. Removed

eregmssqlmysql

sybase_ct

aolserver, apache, apache_hooks, apache2filter,

caudium, continuityisapi, milter, nsapi, phttpd, pi3web, roxen, thttpd, tux, webjames

Extensions SAPI

5-3. Removed

<% %><%=

<script language=php></script>

<? 와 <?= 는 없어지지 않습니다.

5-3. Removed

call_user_method()

call_user_method_array()

call_user_func()

call_user_func_array()

5-4. Deprecated

5-5. Migration

http://php.net/manual/en/migration70.php

5-6. Migration Assistant Report

https://github.com/Alexia/php7mar

끝

새로운 모습의 PHP7을 기대해 봅니다

참고[php7]

http://php.net/manual/en/migration70.php

http://devzone.zend.com/4693/php-7-glance/

[slideshare]

http://www.slideshare.net/zymsys/new-in-php-7?related=2

http://www.slideshare.net/jpauli/php7-is-coming?next_slideshow=1

[php internal]

https://nikic.github.io/2015/05/05/Internal-value-representation-in-PHP-7-part-1.html

https://nikic.github.io/2015/06/19/Internal-value-representation-in-PHP-7-part-2.html

http://nikic.github.io/2014/12/22/PHPs-new-hashtable-implementation.html

[migration assistant report]

https://github.com/Alexia/php7mar