PHP switcher

sphp.sh

#!/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=${currentversion:0:1}
majorNew=${newversion:0:1}
minorNew=${newversion:1:1}

brew list php$newversion 2> /dev/null > /dev/null

if [ $? -eq 0 ]; then
    echo "PHP version $newversion found"

    # Check if new version is already the current version.
    # if [ "${newversion}" == "${currentversion}" ]; then
    #     echo -n "PHP version ${newversion} is already being used. Continue by reloading? (y/n) "
    #     while true; do
    #         read -n 1 yn
    #         case $yn in
    #             [Yy]* ) echo && break;;
    #             [Nn]* ) echo && exit 1;;
    #         esac
    #     done
    # fi

    echo "Unlinking old binaries..."
    brew unlink php$currentversion 2> /dev/null > /dev/null

    echo "Linking new binaries..."
    brew link php$newversion

    echo "Linking new modphp addon..."
    sudo ln -sf `brew list php$newversion | grep libphp` /usr/local/lib/libphp${majorNew}.so
    echo /usr/local/lib/libphp${majorNew}.so
    echo "Fixing LoadModule..."
    apacheConf=`httpd -V | grep -i server_config_file | cut -d '"' -f 2`
    sudo sed -i -e "/LoadModule php${majorOld}_module/s/^#*/#/" $apacheConf

    if grep "LoadModule php${majorNew}_module .*php${newversion}" $apacheConf > /dev/null
    then
        sudo sed -i -e "/LoadModule php${majorNew}_module .*php${newversion}/s/^#//" $apacheConf
    else
        sudo sed -i -e "/LoadModule php${majorNew}_module/s/^#//" $apacheConf
    fi

    echo "Updating version file..."

    pgrep -f /usr/sbin/httpd 2> /dev/null > /dev/null
    if [ $? -eq 0 ]; then
        echo "Restarting system Apache..."
        sudo pkill -9 -f /usr/sbin/httpd
        sudo /usr/sbin/apachectl -k restart > /dev/null 2>&1
    fi

    pgrep -f /usr/local/"Cellar|opt"/*/httpd 2> /dev/null > /dev/null
    if [ $? -eq 0 ]; then
        echo "Restarting homebrew Apache..."
        sudo pkill -9 -f /usr/local/"Cellar|opt"/*/httpd
        sudo /usr/local/bin/apachectl -k restart > /dev/null 2>&1
    fi

    # pgrep -x httpd 2> /dev/null > /dev/null
    # if [ $? -eq 0 ]; then
    #     echo "Restarting non-root homebrew Apache..."
    #     httpd -k restart > /dev/null 2>&1
    # fi

    echo "Done."

    # Show PHP CLI version for verification.
    echo && php -v
else
    echo "PHP version $majorNew.$minorNew was not found."
    echo "Try \`brew install php${newversion}\` first."
    exit 1
fi

Thanks for doing this! For me, the "non-root homebrew Apache" was running as root so I had to change line 76 (httpd -k restart > /dev/null 2>&1) to be "sudo httpd -k restart > /dev/null 2>&1". Maybe I've got something else wrong that's causing httpd to run as root but FYI to others. I thought it wasn't working properly when looking at phpinfo() refreshes but it was just that apache wasn't restarting.

The script is a great contribution, as an improvement, it also should update the current PATH, so the php version used on command line match the version used with apache, so the version used with composer or phpunit is the same as the used for the web server.

With this command the path will be updated, the trick it is to change php55 for the version loaded and in .bash_profile (or .bashrc), change it for a variable that match the current version.

export PATH="$(brew --prefix homebrew/php/php55)/bin:$PATH"

@wimleers I'm not sure what PHP_INI_SCAN_DIR is useful for but I can add it if you tell me where that should go

@crecabar I don't need to do that with homebrew. When the PHP version changes, it is applied globally. I use zsh though.

Great script, I've added a few modifications here: https://gist.github.com/moismailzai/765007c45f908085ec5807e4463606b1

Specifically, I've added a symlink to the currently active php.ini and am running tests for orphaned conf.d/*.ini files that are leftover by uninstalled modules and which cause php CLI to complain (thanks @benkmugo for the sed regex!). I've also added a check for homebrew mariadb, which gets stopped by the switching script and needs to be restarted. Feel free to include any of that in your gist.

PS, I don't think the check you do on line 73 is working correctly:

pgrep -f /usr/local/"Cellar|opt"/*/httpd 2> /dev/null > /dev/null

It looks like everything after "Cellar|opt" is being ignored (so the code block always runs). You can test in console:

Correctly yields 0 (non error status):

pgrep -f /usr/local/"Cellar|opt"/*/httpd 2> /dev/null > /dev/null    
echo $?

Incorrectly yields 0 (because no such process exists):

pgrep -f /usr/local/"Cellar|opt"/*/SOMETHINGTHATDOESNTEXIST 2> /dev/null > /dev/null    
echo $?    

Correctly yields 1 (error status):

pgrep -f /usr/localSOMETHINGTHATDOESNTEXIST/"Cellar|opt"/*/httpd 2> /dev/null > /dev/null    
echo $?

Good job. Thanks.

hi there. thanks for this great script. i used it thankfully the last years... but with the latest brew i experienced some troubles, so what i am thinking about is: with sierra and high sierra i do not use the built in apache anymore, as it is said here: https://getgrav.org/blog/macos-sierra-apache-multiple-php-versions

so i am using the brew httpd and brew does not want to start httpd with sudo or at least its not recommended.
so i modified the parts in this script here to stop and start apache with "brew services start httpd" and "brew services stop httpd"... in this script u are restarting it with sudo... when listing "brew services list", the httpd service is marked yellow...

didnt u experience some problems? wouldnt it be better to restart the brew apache with "brew services stop httpd" and "brew services start httpd"?

For macOS users this script might act a bit different.

The sed in macOS requires a suffix for the in-place option -i (see https://linux.die.net/man/1/sed).
It creates a file named httpd.conf-e because it uses the -e option as suffix argument.
Just change line 55 to:
sudo sed -i '' -e "/LoadModule php${majorOld}_module/s/^#*/#/" $apacheConf

Hint for macOS High Sierra users: If you run into /usr/local/sbin is not writeable errors, check that your /usr/local/sbin actually exists. If not, just creating it and chowning it to your user solves the problem.

    # Remove from PATH - ALL
    sed -i '' "/php@5.6/d" "$HOME/.zshrc"
    sed -i '' "/php@7.2/d" "$HOME/.zshrc"
    # Add new to PATH
    echo 'export PATH="$(brew --prefix '"$php_version"')/bin:$PATH"' >> "$HOME/.zshrc"

Thank you for this script! Unfortunately it isn't changing the PATH for me, and so only Apache PHP is changed and not CLI PHP. I use zsh and Homebrew PHP. Based on the comments above this is supposed to work, but for me it just doesn't.

I came up with this Bash function to call instead of sphp. It calls sphp and then finds the PATH within .zshrc and replaces it:

function switch_php() {
	CURR_PHP_VERSION=$(php -v | tail -r | tail -n 1 | cut -d " " -f 2 | cut -c 1-3)
	NEW_PHP_VERSION=$1

	if [ "$CURR_PHP_VERSION" = "$NEW_PHP_VERSION" ]; 
	then
		echo "Already on $NEW_PHP_VERSION ya idiot."
	else
		echo "Switching from $CURR_PHP_VERSION to $NEW_PHP_VERSION."

		sphp $NEW_PHP_VERSION

		sed -i '' "s/php@$CURR_PHP_VERSION/php@$NEW_PHP_VERSION/g" "$HOME/.zshrc"
		
		source ~/.zshrc

		echo "New CLI PHP:"
		php -v

	fi
}

Call it like so: switch_php 7.2.