本文主要向大家介绍了PHP语言：PHP7.2、PHP7.1 性能对比，通过具体的内容向大家展示，希望对大家学习php语言有所帮助。

服务器配置

2核 Intel(R) Xeon(R) CPU E5-2640 0 @ 2.50GHz

内存 4G

系统 Centos 6.2

gcc 4.4.7

安装

# //hk1.php.net/get/php-7.1.10.tar.gz/from/this/mirror

$ ./configure --prefix=/data/local/php71 --with-config-file-path=/data/local/php71/etc --enable-fpm --with-fpm-user=www --with-fpm-group=www --enable-mysqlnd --with-mysqli=mysqlnd --with-pdo-mysql=mysqlnd --with-iconv-dir --with-freetype-dir=/usr/local/freetype --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --enable-xml --disable-rpath --enable-bcmath --enable-shmop --enable-sysvsem --enable-inline-optimization --with-curl --enable-mbregex --enable-mbstring --enable-intl --enable-pcntl --with-mcrypt --enable-ftp --with-gd --enable-gd-native-ttf --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-xmlrpc --enable-zip --enable-soap --with-gettext --disable-fileinfo --enable-opcache --with-xsl

# https://downloads.php.net/~remi/php-7.2.0RC3.tar.gz

$ ./configure --prefix=/data/local/php72 --with-config-file-path=/data/local/php72/etc --enable-fpm --with-fpm-user=www --with-fpm-group=www --enable-mysqlnd --with-mysqli=mysqlnd --with-pdo-mysql=mysqlnd --with-iconv-dir --with-freetype-dir=/usr/local/freetype --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --enable-xml --disable-rpath --enable-bcmath --enable-shmop --enable-sysvsem --enable-inline-optimization --with-curl --enable-mbregex --enable-mbstring --enable-intl --enable-pcntl --enable-ftp --with-gd --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-xmlrpc --enable-zip --enable-soap --with-gettext --disable-fileinfo --enable-opcache --with-xsl

$ /data/local/php71/bin/php -v

PHP 7.1.10 (cli) (built: Oct  8 2017 16:08:01) ( NTS )

Copyright (c) 1997-2017 The PHP Group

Zend Engine v3.1.0, Copyright (c) 1998-2017 Zend Technologies

$ /data/local/php72/bin/php -v

PHP 7.2.0RC3 (cli) (built: Oct  8 2017 18:11:35) ( NTS )

Copyright (c) 1997-2017 The PHP Group

Zend Engine v3.2.0-dev, Copyright (c) 1998-2017 Zend Technologies

php.ini 配置

仅供测试，非生产环境使用，摘录自 //www.laruence.com/2016/12/18/3137.html

engine = On

short_open_tag = Off

realpath_cache_size = 2M

max_execution_time = 86400

memory_limit = 1024M

error_reporting = 0

display_errors = 0

display_startup_errors = 0

log_errors = 0

default_charset = "UTF-8"

[opcache]

zend_extension=opcache.so

opcache.enable=1

opcache.enable_cli=1

opcache.optimization_level=-1

opcache.fast_shutdown=1

opcache.validate_timestamps=1

opcache.revalidate_freq=60

opcache.use_cwd=1

opcache.max_accelerated_files=100000

opcache.max_wasted_percentage=5

opcache.memory_consumption=128

opcache.consistency_checks=0

opcache.huge_code_pages=1

纯 CPU 基准测试

基于Zend/bench.php的脚本测试

未开启 opcache

$ for i in `seq 1 10`;do /data/local/php71/bin/php /data/soft/php-7.2.0RC3/Zend/bench.php|grep 'Total'|awk '{print $0}' ;done 

Total              1.381

Total              1.416

Total              1.374

Total              1.366

Total              1.430

Total              1.394

Total              1.394

Total              1.369

Total              1.377

Total              1.358# 取平均值  1.3859

$ for i in `seq 1 10`;do /data/local/php72/bin/php /data/soft/php-7.2.0RC3/Zend/bench.php|grep 'Total'|awk '{print $0}' ;done                 

Total              1.448

Total              1.444

Total              1.445

Total              1.458

Total              1.440

Total              1.447

Total              1.486

Total              1.433

Total              1.449

Total              1.464# 取平均值  1.4514

开启 opcache 之后

$ for i in `seq 1 10`;do /data/local/php71/bin/php /data/soft/php-7.2.0RC3/Zend/bench.php|grep 'Total'|awk '{print $0}' ;done

Total              0.794

Total              0.797

Total              0.798

Total              0.806

Total              0.808

Total              0.793

Total              0.814

Total              0.846

Total              0.859

Total              0.818# 取平均值 0.8133

$ for i in `seq 1 10`;do /data/local/php72/bin/php /data/soft/php-7.2.0RC3/Zend/bench.php|grep 'Total'|awk '{print $0}' ;done

Total              0.779

Total              0.774

Total              0.765

Total              0.772

Total              0.764

Total              0.769

Total              0.779

Total              0.839

Total              0.784

Total              0.842# 取平均值 0.7867

在本次测试中，未开启opcache的情况下，php7.2 性能反而有些下降，开启opcache之后，性能追赶上来，比php7.1略有提升。所以更应该开启opcache了。

基于Zend/micro_bench.php的脚本测试

未开启 opcache

$ for i in `seq 1 10`;do /data/local/php71/bin/php /data/soft/php-7.2.0RC3/Zend/micro_bench.php|grep 'Total'|awk '{print $0}' ;done

Total              5.588

Total              5.689

Total              5.652

Total              5.702

Total              5.668

Total              5.641

Total              5.622

Total              5.580

Total              5.635

Total              5.588# 取平均值 5.6365

$ for i in `seq 1 10`;do /data/local/php72/bin/php /data/soft/php-7.2.0RC3/Zend/micro_bench.php|grep 'Total'|awk '{print $0}' ;done

Total              5.924

Total              5.597

Total              5.553

Total              5.579

Total              5.591

Total              5.523

Total              5.518

Total              5.503

Total              5.494

Total              5.558# 取平均值 5.584

开启 opcache

$ for i in `seq 1 10`;do /data/local/php71/bin/php /data/soft/php-7.2.0RC3/Zend/micro_bench.php|grep 'Total'|awk '{print $0}' ;done

Total              4.369

Total              4.379

Total              4.352

Total              4.370

Total              4.375

Total              4.397

Total              4.311

Total              4.361

Total              4.313

Total              4.373# 取平均值 4.36

$ for i in `seq 1 10`;do /data/local/php72/bin/php /data/soft/php-7.2.0RC3/Zend/micro_bench.php|grep 'Total'|awk '{print $0}' ;done

Total              3.711

Total              3.711

Total              3.712

Total              3.734

Total              3.700

Total              3.712

Total              3.705

Total              3.769

Total              3.785

Total              3.695# 取平均值 3.7234

在本次测试中，未开启opcache的情况下，php7.2 性能比php7.1 略有提升，开启opcache之后，php7.2比php7.1有很大的提升。

软件应用测试

配置说明

2核 Intel(R) Xeon(R) CPU E5-2640 0 @ 2.50GHz

内存 4G

系统 Centos 6.2

nginx 1.10.1

mysql 5.5.28

wordpress 4.8.1

考虑到该服务器上已经在运行我的博客等其他服务，所以php-fpm子进程数只配置了15个，在相同配置文件的条件下对比。

# php-fpm 简单配置，仅供测试

[global]

pid = /data/local/php7{x}/var/run/php-fpm.pid

error_log = /data/log/php7{x}-fpm.log

log_level = notice

[www]

listen = /tmp/php7{x}-cgi.sock

listen.backlog = -1

listen.allowed_clients = 127.0.0.1

listen.owner = www

listen.group = www

listen.mode = 0666

user = www

group = www

pm = static

pm.max_children = 15

wordpress 压测

未开启 opcache

# php7.1

Concurrency Level:      10

Time taken for tests:   8.696 seconds

Complete requests:      100

Failed requests:        0

Write errors:           0

Total transferred:      5215300 bytes

HTML transferred:       5189300 bytes

Requests per second:    11.50 [#/sec](mean)

Time per request:       869.637 [ms](mean)

Time per request:       86.964 [ms](mean, across all concurrent requests)

Transfer rate:          585.65 [Kbytes/sec] received

# php7.2

Concurrency Level:      10

Time taken for tests:   8.528 seconds

Complete requests:      100

Failed requests:        0

Write errors:           0

Total transferred:      5215500 bytes

HTML transferred:       5189300 bytes

Requests per second:    11.73 [#/sec](mean)

Time per request:       852.793 [ms](mean)

Time per request:       85.279 [ms](mean, across all concurrent requests)

Transfer rate:          597.24 [Kbytes/sec] received

可以看到在未开启opcache的情况下，性能非常糟糕，10个并发的情况下，每个请求的响应时间已经非常长了，没有必要继续增加并发数了。

在开启opcache 之后，相对之前未开启的情况性能简直天壤之别。相比之下php7.2在wordpress压测上，QPS 稳定在70+ 相对php7.1 增加不少。

测试结果和配置参数以及服务器配置有关，仅供对比php7.1与7.2的性能。

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