switch-php

#!/bin/bash

# Check if command was ran as root.
if [[ $(id -u) -eq 0 ]]; then
  echo "The command \"sphp\" should not be executed as root or via sudo directly."
  echo "When a service requires root access, you will be prompted for a password as needed."
  exit 1
fi

# Usage
if [ $# -ne 1 ]; then
  echo "Usage: sphp [phpversion]"
  echo "Versions installed:"
  brew list | grep '^php[0-9]\{2,\}$' | grep -o -E '[0-9]+' | while read -r line ; do
    echo " - phpversion: $line"
  done
  exit 1
fi

currentversion="`php -r \"error_reporting(0); echo str_replace('.', '', substr(phpversion(), 0, 3));\"`"
newversion="$1"

majorOld=${currentversion:0:1}
minorOld=${currentversion:1:1}
majorNew=${newversion:0:1}
minorNew=${newversion:1:1}

brew list php$newversion 2> /dev/null > /dev/null
if [ $? -eq 0 ]; then
  if [ "${newversion}" == "${currentversion}" ]; then
    echo "PHP version [${newversion}] is already being used"
    exit 1
  fi

  echo "PHP version [$newversion] found"
  echo "Switching from [php${currentversion}] to [php${newversion}] ... "

  printf "Unlink php${currentversion} ... "
  brew unlink php$currentversion 2> /dev/null > /dev/null
  printf "[OK] and "

  printf "Link php${newversion} ... "
  brew link php$newversion 2> /dev/null > /dev/null
  printf "[OK]\n"

  apache_http_conf_file=`httpd -V | grep -i server_config_file | cut -d '"' -f 2`
  printf "Updating Apache2.4 Configuration ${apache_http_conf_file} ... "

  # unload module of current version
  sed -i -e "s/LoadModule php${majorOld}_module/#LoadModule php${majorOld}_module/g" $apache_http_conf_file

  # unload module of old version
  sed -i -e "s/#LoadModule php${majorNew}_module/LoadModule php${majorNew}_module/g" $apache_http_conf_file
  printf "[OK]\n"

  # check Apache2 config
  result="`apachectl configtest 2>&1`"
  if [ "${result}" == "Syntax OK" ]; then
    printf "Restarting Apache2.4 ... "
    sudo apachectl -k restart
    echo "[OK]"
    php -v
  else
    echo "Httpd Configuration Failed. Run 'apachectl configtest' to see details"
    echo "1. Please check PHP version 'php -v'"
    echo "2. Please check ${apache_http_conf_file} near by LoadModule ..."
  fi
else
  echo "PHP version $majorNew.$minorNew was not found."
  echo "Try \`brew install php${newversion}\` first."
  exit 1
fi

echo "DONE!"