# Change PHP version rapidly when using Homebrew (MacOSX)

README.md

Change PHP version rapidly when using Homebrew (MacOSX)

With Homebrew, sometimes you have many PHP versions installed. I personally use EVERY php version to be sure every open-source project I have on my env works for every version.

This is why I have php 5.3, 5.4, 5.5, 5.6 and 7.0 installed with Homebrew.

Switching php versions is a pain when using homebrew, because you have to brew unlink the php versions used, and brew link the one you want.

Executing this script without argument shows all versions installed, and especially the current version.

Executing it with an argument will check a potential symlink in /usr/local/bin/php{version} unlink all versions, and link the one you specified.

Install

Execute this script to install phpv

sudo wget https://gist.githubusercontent.com/Pierstoval/1645a26ea5d2200642b6/raw/phpv.bash -O /usr/local/bin/phpv && sudo chmod +x /usr/local/bin/phpv && sudo chown `whoami` /usr/local/bin/phpv

Usage:

• Show all versions installed:

  $ phpv
  
  Current:
  PHP 5.5.27 (cli) (built: Jul 14 2015 17:04:01)
  Copyright (c) 1997-2015 The PHP Group
  Zend Engine v2.5.0, Copyright (c) 1998-2015 Zend Technologies
      with Xdebug v2.3.3, Copyright (c) 2002-2015, by Derick Rethans
  
  PHP 7.0.0beta2 (cli) (built: Jul 24 2015 10:34:53)
  Copyright (c) 1997-2015 The PHP Group
  Zend Engine v3.0.0-dev, Copyright (c) 1998-2015 Zend Technologies
      with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2015, by Zend Technologies
  PHP 5.6.11 (cli) (built: Jul 30 2015 17:06:05) (DEBUG)
  Copyright (c) 1997-2015 The PHP Group
  Zend Engine v2.6.0, Copyright (c) 1998-2015 Zend Technologies
      with Xdebug v2.3.3, Copyright (c) 2002-2015, by Derick Rethans
  PHP 5.5.27 (cli) (built: Jul 14 2015 17:04:01)
  Copyright (c) 1997-2015 The PHP Group
  Zend Engine v2.5.0, Copyright (c) 1998-2015 Zend Technologies
      with Xdebug v2.3.3, Copyright (c) 2002-2015, by Derick Rethans
  PHP 5.4.43 (cli) (built: Jul 14 2015 16:52:26)
  Copyright (c) 1997-2014 The PHP Group
  Zend Engine v2.4.0, Copyright (c) 1998-2014 Zend Technologies
      with Xdebug v2.3.3, Copyright (c) 2002-2015, by Derick Rethans
  PHP 5.3.29 (cli) (built: Jul 14 2015 16:39:57)
  Copyright (c) 1997-2014 The PHP Group
  Zend Engine v2.3.0, Copyright (c) 1998-2014 Zend Technologies
      with Xdebug v2.2.7, Copyright (c) 2002-2015, by Derick Rethans

• Switch to another version:

  $ phpv 54
  phpv
  Switch to /usr/local/bin/php54
  Unlinking /usr/local/Cellar/php53/5.3.29_2... 0 symlinks removed
  Unlinking /usr/local/Cellar/php54/5.4.43_2... 0 symlinks removed
  Unlinking /usr/local/Cellar/php55/5.5.27_2... 0 symlinks removed
  Unlinking /usr/local/Cellar/php56/5.6.11_2... 38 symlinks removed
  Unlinking /usr/local/Cellar/php70/7.0.0-beta.2... 0 symlinks removed
  Linking /usr/local/Cellar/php54/5.4.43_2... 40 symlinks created
  PHP 5.4.43 (cli) (built: Jul 14 2015 16:52:26)
  Copyright (c) 1997-2014 The PHP Group
  Zend Engine v2.4.0, Copyright (c) 1998-2014 Zend Technologies
      with Xdebug v2.3.3, Copyright (c) 2002-2015, by Derick Rethans

Plus, for convenience, it's awesome to have a symlink for every PHP version pointing to /usr/local/opt/php/{version}/bin/php.

But you're lucky: the script can generate them automatically if it detects that a specific version of PHP is installed and if the symlink is not created.

Else, you can do it yourself by executing this script:

sudo ln -s /usr/local/opt/php53/bin/php /usr/local/bin/php53 && sudo chmod +x /usr/local/bin/php53
sudo ln -s /usr/local/opt/php54/bin/php /usr/local/bin/php54 && sudo chmod +x /usr/local/bin/php54
sudo ln -s /usr/local/opt/php55/bin/php /usr/local/bin/php55 && sudo chmod +x /usr/local/bin/php55
sudo ln -s /usr/local/opt/php56/bin/php /usr/local/bin/php56 && sudo chmod +x /usr/local/bin/php56
sudo ln -s /usr/local/opt/php70/bin/php /usr/local/bin/php70 && sudo chmod +x /usr/local/bin/php70

Then, you can execute any of the php version directly in command line by executing the so-called version:

$ php53 -v
PHP 5.3.29 (cli) (built: Jul 14 2015 16:39:57)
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2014 Zend Technologies
    with Xdebug v2.2.7, Copyright (c) 2002-2015, by Derick Rethans

And you can do the same for every version.

phpv.bash

#!/bin/bash

# Use:
# $ phpv
# > Will return current global php version, and ALL php versions symlinked
#
# $ phpv {version}
# > Will "brew unlink" all versions, and "brew link php{version}"

# View README file for more info

if [[ ! -f "/usr/local/bin/php53" && -f "/usr/local/opt/php53/bin/php" ]]; then
    echo "Creating symlink for php 5.3"
    sudo ln -s /usr/local/opt/php53/bin/php /usr/local/bin/php53 && sudo chmod +x /usr/local/bin/php53
fi
if [[ ! -f "/usr/local/bin/php54" && -f "/usr/local/opt/php54/bin/php" ]]; then
    echo "Creating symlink for php 5.4"
    sudo ln -s /usr/local/opt/php54/bin/php /usr/local/bin/php54 && sudo chmod +x /usr/local/bin/php54
fi
if [[ ! -f "/usr/local/bin/php55" && -f "/usr/local/opt/php55/bin/php" ]]; then
    echo "Creating symlink for php 5.5"
    sudo ln -s /usr/local/opt/php55/bin/php /usr/local/bin/php55 && sudo chmod +x /usr/local/bin/php55
fi
if [[ ! -f "/usr/local/bin/php56" && -f "/usr/local/opt/php56/bin/php" ]]; then
    echo "Creating symlink for php 5.6"
    sudo ln -s /usr/local/opt/php56/bin/php /usr/local/bin/php56 && sudo chmod +x /usr/local/bin/php56
fi
if [[ ! -f "/usr/local/bin/php70" && -f "/usr/local/opt/php70/bin/php" ]]; then
    echo "Creating symlink for php 7.0"
    sudo ln -s /usr/local/opt/php70/bin/php /usr/local/bin/php70 && sudo chmod +x /usr/local/bin/php70
fi

if [ -z "$1" ]; then
    echo "Current:"
    php -v
    echo ""
    if [[ -f "/usr/local/opt/php70/bin/php" ]]; then /usr/local/opt/php70/bin/php -v ; fi
    if [[ -f "/usr/local/opt/php56/bin/php" ]]; then /usr/local/opt/php56/bin/php -v ; fi
    if [[ -f "/usr/local/opt/php55/bin/php" ]]; then /usr/local/opt/php55/bin/php -v ; fi
    if [[ -f "/usr/local/opt/php54/bin/php" ]]; then /usr/local/opt/php54/bin/php -v ; fi
    if [[ -f "/usr/local/opt/php53/bin/php" ]]; then /usr/local/opt/php53/bin/php -v ; fi
else
    if [[ -f "/usr/local/opt/php$1/bin/php" ]]; then
        echo "Switch to /usr/local/opt/php$1/bin/php"
        brew unlink php53
        brew unlink php54
        brew unlink php55
        brew unlink php56
        brew unlink php70
        brew link "php$1"
        php -v
    else
        echo "Php version $1 does not exist."
    fi
fi