script snippet that generates aliases for each version of PHP installed by brew.

README.md

switchphp

installation

Install in your .bashrc or .zshrc file to create an alias for each version of php installed via brew.

Ie, if you have PHP v7.4 and v8.0 installed, it will create two aliases 7.4, and 8.0 which will switch to that version of PHP.

switchphp.sh

# switch PHP versions
installedPhpVersions=($(brew ls --version | egrep -o 'php(:?@\d.\d)?\s(\d\.\d)' | cut -f2 -d' '))
for phpVersion in ${installedPhpVersions[*]}; do
    value="{"
    for otherPhpVersion in ${installedPhpVersions[*]}; do
        if [ "${otherPhpVersion}" != "${phpVersion}" ]; then
            value="${value} brew unlink php@${otherPhpVersion};"
        fi
    done
    value="${value} brew link php@${phpVersion} --force --overwrite; } &> /dev/null && php -v"
    alias "${phpVersion}"="${value}"
done