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如果你在Linux虚拟机VirtualBox里运行FreeBSD 12系统，可以安装PHP 7.2，请按以下步骤操作。安装虚拟机请参考在Ubuntu 18.04/Debian 9上安装VirtualBox 6.0的方法一文。对于PHP 7.3，请参考给在Linux虚拟机里运行的FreeBSD 12安装PHP 7.3一文。
步骤一、更新ports tree 首先使用portsnap命令更新FreeBSD系统的ports tree： $ jmutai@freebsd:~ % su - Password: root@freebsd:~# portsnap fetch update Looking up portsnap.FreeBSD.org mirrors... 5 mirrors found. Fetching public key from ec2-ap-southeast-2.portsnap.freebsd.org... done. Fetching snapshot tag from ec2-ap-southeast-2.portsnap.freebsd.org... done. Fetching snapshot metadata... done. Fetching snapshot generated at Wed Mar 06 01:19:28 UTC 2019: Extracting snapshot... done. Verifying snapshot integrity... done. Fetching snapshot tag from ec2-ap-southeast-2.portsnap.freebsd.org... done. Fetching snapshot metadata... done. Updating from Wed Mar 06 01:19:28 UTC 2019 to Wed Mar 06 09:15:19 UTC 2019. Fetching 5 metadata patches... done. Applying metadata patches... done. Fetching 0 metadata files... done. Fetching 78 patches. (78/78) 100.00% done. done. Applying patches... done. Fetching 3 new ports or files... done. /usr/ports was not created by portsnap. You must run 'portsnap extract' before running 'portsnap update'. 首次运行Portsnap时，需要将快照解压缩到/usr/ports： # portsnap extract 应该能返回如下行： Building new INDEX files... done. 然后运行portsnap fetch update命令确认： # portsnap fetch update Looking up portsnap.FreeBSD.org mirrors... 5 mirrors found. Fetching snapshot tag from ec2-eu-west-1.portsnap.freebsd.org... done. Latest snapshot on server matches what we already have. No updates needed. Ports tree is already up to date. 默认情况下，Ports Collection本身存储为/usr/ports的子目录。
步骤二、在FreeBSD上安装PHP 7.2 有两种方法可以在FreeBSD上安装PHP 7.2： 1、从二进制包安装。 2、使用端口从源安装。 方法1：从二进制文件在FreeBSD上安装PHP 7.2 如果尚未下载并安装pkg： # /usr/sbin/pkg The package management tool is not yet installed on your system. Do you want to fetch and install it now? [y/N]: y Bootstrapping pkg from pkg+http://pkg.FreeBSD.org/FreeBSD:13:amd64/latest, please wait... Verifying signature with trusted certificate pkg.freebsd.org.2013102301... done Installing pkg-1.10.5_5... the most recent version of pkg-1.10.5_5 is installed 然后安装PHP 7.2： # pkg install php72 Updating FreeBSD repository catalogue... FreeBSD repository is up to date. All repositories are up to date. The following 3 package(s) will be affected (of 0 checked): New packages to be INSTALLED: php72: 7.2.10 libargon2: 20171227_1 pcre: 8.42 Number of packages to be installed: 3 The process will require 31 MiB more space. 5 MiB to be downloaded. Proceed with this action? [y/N]: y [1/3] Fetching php72-7.2.10.txz: 100% 3 MiB 192.9kB/s 00:18 [2/3] Fetching libargon2-20171227_1.txz: 100% 64 KiB 65.3kB/s 00:01 [3/3] Fetching pcre-8.42.txz: 100% 1 MiB 44.9kB/s 00:28 Checking integrity... done (0 conflicting) [1/3] Installing libargon2-20171227_1... [1/3] Extracting libargon2-20171227_1: 100% [2/3] Installing pcre-8.42... [2/3] Extracting pcre-8.42: 100% [3/3] Installing php72-7.2.10... [3/3] Extracting php72-7.2.10: 100% 确认已安装的PHP版本： # php -v PHP 7.2.10 (cli) (built: Dec 1 2018 01:31:03) ( NTS ) Copyright (c) 1997-2018 The PHP Group Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies 同时可以在FreeBSD上安装PHP 7.2扩展。 使用syntaxphp72-<extension>安装扩展： # pkg install php72-curl php72-extensions php72-json php72-xml \ php72-zip php72-intl php72-mysqli php72-pdo_mysql php72-pdo \ php72-pear php72-soap php72-phar 使用以下命令查看已加载： # php -m 方法2：从端口在FreeBSD上安装PHP 7.2 将你的工作目录更改为PHP 7.2 ports文件夹： # cd /usr/ports/lang/php72 然后构建并安装PHP 7.2： # make install clean 要在FreeBSD上安装PHP 7.2扩展，请执行以下操作： # cd /usr/ports/lang/php72-extensions/ # make install clean 至此，你现在已在FreeBSD上安装了PHP 7.2。
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