ingFang SC", "Lantinghei SC", "Microsoft Yahei", "Hiragino Sans GB", "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; font-size: 16px; font-style: normal; font-weight: 400; word-spacing: 0; white-space: normal; box-sizing: border-box; orphans: 2; widows: 2; background-color: rgba(255, 255, 255, 1); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial">

ingFang SC", "Lantinghei SC", "Microsoft Yahei", "Hiragino Sans GB", "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; font-size: 1.87rem; font-weight: 500; vertical-align: baseline; -ms-word-wrap: break-word; box-sizing: border-box; -webkit-font-smoothing: antialiased">介绍

最近的 PHP 7.3.0 已经在 2018 年12月6日 发布 GA，大家已经可以开始第一时间体验新版本了，这里先放出 PHP7.3 安装的教程以便大家升级。

适用系统： Ubuntu 18.04 LTS / Ubuntu 16.04 LTS ／ Ubuntu 14.04 LTS / Debian 9 stretch / Debian 8 jessie

ingFang SC", "Lantinghei SC", "Microsoft Yahei", "Hiragino Sans GB", "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; font-size: 1.87rem; font-weight: 500; vertical-align: baseline; -ms-word-wrap: break-word; box-sizing: border-box; -webkit-font-smoothing: antialiased">更新内容

PHP7.3 的主要更新内容：

ingFang SC", "Lantinghei SC", "Microsoft Yahei", "Hiragino Sans GB", "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; font-size: 1rem; vertical-align: baseline; position: relative; -ms-word-wrap: break-word; box-sizing: border-box; -webkit-font-smoothing: antialiased">

Implemented Flexible Heredoc And Nowdoc Syntaxes
Allow a Trailing Comma in Function Calls
JSON_THROW_ON_ERROR
list() Reference Assignment
is_countable Function
array_key_first(), array_key_last()
Argon2 Password Hash Enhancements
Deprecations

PHP 7.3 并没有带来特别激进的更新，同一天发布更新的 WordPress 5.0 也是第一时间带来了对 PHP7.3 的支持。

当然了 PHP 7.3 也带了性能提升，相比早期的 PHP 7.0 有了近 22% 的性能提升。同时 PHP 5.6 和 7.0 都即将失去 PHP 社区官方的支持，所以也是建议大家能尽快的升级到最新版本。

在 Ubuntu/Debian 下安装 PHP7.3 教程-米饭粑

ingFang SC", "Lantinghei SC", "Microsoft Yahei", "Hiragino Sans GB", "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; font-size: 1.87rem; font-weight: 500; vertical-align: baseline; -ms-word-wrap: break-word; box-sizing: border-box; -webkit-font-smoothing: antialiased">安装 PHP

Ondřej Surý 的 PHP PPA 为 Ubuntu 18.04/16.04/14.04 提供了 PHP7.2 版本，同时也有为 Debian 9/8 提供 PHP7.2 版本，因此 Ubuntu 是源于 Debian 所以基本可以通用，同时维护难度较低，软件源安装的 PHP 默认以 Unix Socket 的状态运行在 /run/php/php7.3-fpm.sock，比使用 TCP 以 localhost:9000 的方式性能更好。

值得一提的是 Ondřej Surý 是 Debian PHP 软件源的官方维护者之一，所以说稳定性和安全性基本上不是问题。

由于 PHP 7.3 是新出的版本势必有不少的兼容性问题，特别是国产的程序建议等待开发者通知再进行升级，一些 PECL 扩展可能也不会及时适配最新版。建议更新前提前做好备份准备。目前已知的是 WordPress 5.0 版本开始支持 PHP 7.3。

ingFang SC", "Lantinghei SC", "Microsoft Yahei", "Hiragino Sans GB", "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; font-size: 1.37rem; font-weight: 500; vertical-align: baseline; border-bottom: 1px solid rgba(244, 246, 249, 1); -ms-word-wrap: break-word; box-sizing: border-box; -webkit-font-smoothing: antialiased">相关教程推荐

  • Ubuntu 下轻松实现 PHP 多版本共存
  • Ubuntu 下为单版本和多版本 PHP 安装扩展

ingFang SC", "Lantinghei SC", "Microsoft Yahei", "Hiragino Sans GB", "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; font-size: 1.37rem; font-weight: 500; vertical-align: baseline; border-bottom: 1px solid rgba(244, 246, 249, 1); -ms-word-wrap: break-word; box-sizing: border-box; -webkit-font-smoothing: antialiased">添加软件源

ingFang SC", "Lantinghei SC", "Microsoft Yahei", "Hiragino Sans GB", "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; font-size: 1.25rem; font-weight: 500; vertical-align: baseline; position: relative; -ms-word-wrap: break-word; box-sizing: border-box; -webkit-font-smoothing: antialiased">Ubuntu

安装软件源拓展工具：

apt -y install software-properties-common apt-transport-https lsb-release ca-certificates

添加 Ondřej Surý 的 PHP PPA 源，需要按一次回车：

add-apt-repository ppandrej/php

更新软件源缓存：

apt update

ingFang SC", "Lantinghei SC", "Microsoft Yahei", "Hiragino Sans GB", "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; font-size: 1.25rem; font-weight: 500; vertical-align: baseline; position: relative; -ms-word-wrap: break-word; box-sizing: border-box; -webkit-font-smoothing: antialiased">Debian

安装软件源拓展工具：

apt -y install software-properties-common apt-transport-https lsb-release ca-certificates

添加 GPG

wget -O /etc/apt/trusted.gpg.d/php.gpg https://mirror.xtom.com.hk/sury/php/apt.gpg

添加 sury 软件源

sh -c 'echo "deb https://mirror.xtom.com.hk/sury/php/ $(lsb_release -sc) main" > /etc/apt/sources.list.d/php.list'

更新软件源缓存：

apt-get update

ingFang SC", "Lantinghei SC", "Microsoft Yahei", "Hiragino Sans GB", "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif; font-size: 1.37rem; font-weight: 500; vertical-align: baseline; border-bottom: 1px solid rgba(244, 246, 249, 1); -ms-word-wrap: break-word; box-sizing: border-box; -webkit-font-smoothing: antialiased">安装软件

安装 PHP7.3：

apt install php7.3-fpm php7.3-mysql php7.3-curl php7.3-gd php7.3-mbstring php7.3-xml php7.3-xmlrpc php7.3-zip php7.3-opcache -y

设置 PHP

安装完成后，编辑 /etc/php/7.3/fpm/php.ini 替换换 ;cgi.fix_pathinfo=1 为 cgi.fix_pathinfo=0 快捷命令：

sed -i 's/;cgi.fix_pathinfo=1/cgi.fix_pathinfo=0/' /etc/php/7.3/fpm/php.ini

管理 PHP

安装好了先重启一下！

systemctl restart php7.3-fpm

更多操作：

 
systemctl restart php7.3-fpm #重启
 
systemctl start php7.3-fpm #启动
 
systemctl stop php7.3-fpm #关闭
 
systemctl status php7.3-fpm #检查状态

查看 PHP

验证一下是否安装成功：

 
root@mf88.biz-service:~# php -v
 
PHP 7.3.0-1+ubuntu18.04.1+deb.sury.org+1 (cli) (built: Dec 6 2018 20:24:55) ( NTS )
 
Copyright (c) 1997-2018 The PHP Group
 
Zend Engine v3.3.0-dev, Copyright (c) 1998-2018 Zend Technologies
 
with Zend OPcache v7.3.0-1+ubuntu18.04.1+deb.sury.org+1, Copyright (c) 1999-2018, by Zend Technologies

更新 PHP

运行下面的命令系统就会更新所有可以更新的软件包括 PHP

 
apt update
 
apt upgrade -y

安装更多组件

上面的一条命令安装 PHP 只是安装了部分 PHP 拓展，更多的软件可见：

 
root@mf88.biz-service:~# apt-cache search php7.3
 
php-amqp - AMQP extension for PHP
 
php-apcu - APC User Cache for PHP
 
php-apcu-bc - APCu Backwards Compatibility Module
 
php-ds - PHP extension providing efficient data structures for PHP 7
 
php-gearman - PHP wrapper to libgearman
 
php-geoip - GeoIP module for PHP
 
php-gmagick - Provides a wrapper to the GraphicsMagick library
 
php-gnupg - PHP wrapper around the gpgme library
 
php-http - PECL HTTP module for PHP Extended HTTP Support
 
php-igbinary - igbinary PHP serializer
 
php-imagick - Provides a wrapper to the ImageMagick library
 
php-mailparse - Email message manipulation for PHP
 
php-memcache - memcache extension module for PHP
 
php-memcached - memcached extension module for PHP, uses libmemcached
 
php-mongodb - MongoDB driver for PHP
 
php-msgpack - PHP extension for interfacing with MessagePack
 
php-oauth - OAuth 1.0 consumer and provider extension
 
php-propro - propro module for PHP
 
php-radius - radius client library for PHP
 
php-raphf - raphf module for PHP
 
php-redis - PHP extension for interfacing with Redis
 
php-rrd - PHP bindings to rrd tool system
 
php-smbclient - PHP wrapper for libsmbclient
 
php-solr - PHP extension for communicating with Apache Solr server
 
php-ssh2 - Bindings for the libssh2 library
 
php-stomp - Streaming Text Oriented Messaging Protocol (STOMP) client module for PHP
 
php-tideways - Tideways PHP Profiler Extension
 
php-uploadprogress - file upload progress tracking extension for PHP
 
php-uuid - PHP UUID extension
 
php-yac - YAC (Yet Another Cache) for PHP
 
php-yaml - YAML-1.1 parser and emitter for PHP
 
php-zmq - ZeroMQ messaging bindings for PHP
 
php-xdebug - Xdebug Module for PHP
 
php-lua - PHP Embedded lua interpreter
 
libapache2-mod-php7.3 - server-side, HTML-embedded scripting language (Apache 2 module)
 
libphp7.3-embed - HTML-embedded scripting language (Embedded SAPI library)
 
php7.3-bcmath - Bcmath module for PHP
 
php7.3-bz2 - bzip2 module for PHP
 
php7.3-cgi - server-side, HTML-embedded scripting language (CGI binary)
 
php7.3-cli - command-line interpreter for the PHP scripting language
 
php7.3-common - documentation, examples and common module for PHP
 
php7.3-curl - CURL module for PHP
 
php7.3-dba - DBA module for PHP
 
php7.3-dev - Files for PHP7.3 module development
 
php7.3-enchant - Enchant module for PHP
 
php7.3-fpm - server-side, HTML-embedded scripting language (FPM-CGI binary)
 
php7.3-gd - GD module for PHP
 
php7.3-gmp - GMP module for PHP
 
php7.3-imap - IMAP module for PHP
 
php7.3-interbase - Interbase module for PHP
 
php7.3-intl - Internationalisation module for PHP
 
php7.3-json - JSON module for PHP
 
php7.3-ldap - LDAP module for PHP
 
php7.3-mbstring - MBSTRING module for PHP
 
php7.3-mysql - MySQL module for PHP
 
php7.3-odbc - ODBC module for PHP
 
php7.3-opcache - Zend OpCache module for PHP
 
php7.3-pgsql - PostgreSQL module for PHP
 
php7.3-phpdbg - server-side, HTML-embedded scripting language (PHPDBG binary)
 
php7.3-pspell - pspell module for PHP
 
php7.3-readline - readline module for PHP
 
php7.3-recode - recode module for PHP
 
php7.3-snmp - SNMP module for PHP
 
php7.3-soap - SOAP module for PHP
 
php7.3-sqlite3 - SQLite3 module for PHP
 
php7.3-sybase - Sybase module for PHP
 
php7.3-tidy - tidy module for PHP
 
php7.3-xml - DOM, SimpleXML, WDDX, XML, and XSL module for PHP
 
php7.3-xmlrpc - XMLRPC-EPI module for PHP
 
php7.3-zip - Zip module for PHP
 
php7.3-xsl - XSL module for PHP (dummy)
 
php7.3 - server-side, HTML-embedded scripting language (metapackage)