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This article mainly explains "how to achieve Mac PHP version switching", the content of the article is simple and clear, easy to learn and understand, the following please follow the editor's ideas slowly in depth, together to study and learn "how to achieve Mac PHP version switching" bar!

In this article, you will learn the following

View the basic php environment

Understand the PHP operating mode

Basic use of brew-php-switcher

Understand bash_profile profile

Commands related to brew installation software

Before we start to perform PHP version-related operations, let's check the local environment after restarting Mac

Execute the following command

Brew services list

Above we can see that there are two php services, and the system or the command line will recognize one of them, and identifying which php environment is another thing, which will be described later.

Here is a basic knowledge of php operation.

The operation mode of PHP

There are four recognized operation modes of PHP in the industry.

1 CGI Universal Gateway Interface Mode

2 FAST-CGI mode

3 CLI command line mode

4-module mode

The first two involve protocol upgrade, that is, php-fpm, and the module mode involves the collocation of server and protocol, for example, Apache,nginxCLI command line mode is shell command line, php- v. Such commands understand this concept and help to determine which actual version of PHP is currently running.

And then understand the root cause of the difference between the result of php-v; and the execution result of web page phpinfo ().

Php-fpm-v

PHP 7.2.12 (fpm-fcgi) (built: Nov 9 2018 10:58:18) Copyright (c) 1997-2018 The PHP GroupZend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies with Zend OPcache v7.2.12, Copyright (c) 1999-2018, by Zend Technologies

View related versions of PHP

First of all, check out the officially supported versions of php

Brew search php

What is brew-php-switcher?

Brew-php-switcher is a version switching tool for the php environment that switches between versions of php installed through brew.

Github address https://github.com/philcook/brew-php-switcher

As a php version switching management tool, brew-php-switcher has the same function as php version. Unfortunately, php version has been abandoned. For mac users, they can only choose brew-php-switcher as the version switching tool.

Brew no longer provides 5.6 installation source, so brew-php-switcher cannot switch between 5.6s.

Installation

Brew brew-php-switcher install

Basic use

Brew-php-switcher + version number

Brew-php-switcher

Usage: brew-php-switcher version [- s |-slots *] [- cations *]

Version one of: 7.0,7.1,7.2,7.3

-s skip change of mod_php on apache

-apache * skip change of mod_php on apache or valet restart i.e (apache | valet,apache | valet)

-centering * switch a specific config (apache | valet,apache | valet

For example, switch to version 7.2

Brew-php-switcher 7.2

Switching to php@7.2

Switching your shell

Unlinking / usr/local/Cellar/php@5.6/5.6.38... 25 symlinks removed

Unlinking / usr/local/Cellar/php@7.2/7.2.18... 0 symlinks removed

Unlinking / usr/local/Cellar/php/7.3.5... 0 symlinks removed

Linking / usr/local/Cellar/php@7.2/7.2.18... 25 symlinks created

If you need to have this software first in your PATH instead consider running:

Echo 'export PATH= "/ usr/local/opt/php@7.2/bin:$PATH" > > ~ / .bash_profile

Echo 'export PATH= "/ usr/local/opt/php@7.2/sbin:$PATH" > > ~ / .bash_profile

Follow the above prompts to modify the environment variable and

Source / .bash_profile

After it comes into effect

Execute php-v; console php command takes effect (cli)

Php-v

PHP 7.2.18 (cli) (built: May 22 2019 00:08:35) (NTS)

Copyright (c) 1997-2018 The PHP Group

Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies

With Zend OPcache v7.2.18, Copyright (c) 1999-2018, by Zend Technologies

Execute php-fpm-v

Php-fpm-v

PHP 7.2.18 (fpm-fcgi) (built: May 22 2019 00:08:38)

Copyright (c) 1997-2018 The PHP Group

Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies

With Zend OPcache v7.2.18, Copyright (c) 1999-2018, by Zend Technologies

View soft connections

Cd / usr/local/opt/php@7.2/sbin/local/opt

Ls-l

Lrwxr-xr-x 1 admin 19 6 2 06:21 php->.. / Cellar/php/7.3.5

Lrwxr-xr-x 1 admin 32 3 20 16:07 php-code-sniffer->.. / Cellar/php-code-sniffer/3.4.1

Lrwxr-xr-x 1 admin 24 5 28 09:25 php@5.6->.. / Cellar/php@5.6/5.6.38

Lrwxr-xr-x 1 admin 24 6 2 05:54 php@7.2->.. / Cellar/php@7.2/7.2.18

Lrwxr-xr-x 1 admin 19 6 2 06:21 php@7.3->.. / Cellar/php/7.3.5

Identify PHP services

As mentioned above, brew services shows two php services. We can use the following command to shut down one by one to verify which version of PHP the web service recognizes.

Brew services stop php

Brew services stop php@7.2

Use phpinfo () to view the current running version, and when all php services are turned off, the web page will directly display 502.

Brew services restart php

View the process

Ps-ef | grep php-fpm

Brew services start php@7.2

If you need to have php@7.2 first in your PATH run:

Echo 'export PATH= "/ usr/local/opt/php@7.2/bin:$PATH" > > ~ / .bash_profile

Echo 'export PATH= "/ usr/local/opt/php@7.2/sbin:$PATH" > > ~ / .bash_profile

You can also run `php-- ini` inside terminal to see which files are used by PHP in CLI mode.

Preliminary understanding of bash_profile configuration file

In mac environment, custom installed software will be in the / usr/local/Cellar path. When the installation software conflicts with the original software of the system, such as Python2.7, python3.n,PHP5.6 and PHP7.n, you need to specify which version to use by default.

System profile

~ / .bash_profile

By modifying ~ / .bash_profile, the system recognizes that the default Python version is 3.7.

Alias python= "/ usr/local/Cellar/python/3.7.0/bin/python3.7"

The command takes effect source ~ / .bash_profile

PHP7 installs the mongodb extension

Which pecl

Sudo / usr/local/opt/php@7.2/bin/pecl install mongodb

Build process completed successfully

Installing'/ usr/local/Cellar/php@7.2/7.2.14/pecl/20170718/mongodb.so'

Install ok: channel://pecl.php.net/mongodb-1.5.3

Extension mongodb enabled in php.ini

YII2 MongoDb extension https://packagist.org/packages/yiisoft/yii2-mongodb"yiisoft/yii2-mongodb": "~ 2.1.0" 2.1.0 is a version node, previously using the old mogo driver

Php-m | grep mongodb

Finally, I checked the information and found that the installation tutorial under this URL is quite practical, and it still depends on pecl installation.

Https://www.runoob.com/mongodb/php7-mongdb-tutorial.html

PHP7 installs the redis extension

Sudo / usr/local/opt/php@7.2/bin/pecl install igbinary

Sudo / usr/local/opt/php@7.2/bin/pecl install redis

Build process completed successfully

Installing'/ usr/local/Cellar/php@7.2/7.2.14/pecl/20170718/redis.so'

Install ok: channel://pecl.php.net/redis-4.2.0

Extension redis enabled in php.ini

Supplement commonly used commands

View php ini profile path

Php-I | grep php.ini

Output

Configuration File (php.ini) Path = > / usr/local/etc/php/7.2

Loaded Configuration File = > / usr/local/etc/php/7.2/php.ini

View pecl path

Which pecl

Output

/ usr/local/opt/php@7.2/bin/pecl

View a list of services installed through brew

Brew services list

Thank you for your reading, the above is the content of "how to achieve Mac PHP version switching". After the study of this article, I believe you have a deeper understanding of how to achieve Mac PHP version switching, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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