Switch PHP version in MacOS with Homebrew

.zshrc

installedPhpVersions=('7.1' '7.2' '7.3' '7.4', '8.0')

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 "php@${phpVersion}"="${value}"
done