Actually, just noticed that Spotifious sets the path to `/usr/local/bin` explicitly in the script filter, so it will pick up Homebrew PHP if it's there.
# Add Homebrew to path for those who need :)
export PATH="/usr/local/bin:${PATH}"
php -f main.php -- "{query}"
# In case you are experiencing unsolveable issues,
# you can generate a log file to help me. Modify the
# first line of this script so it looks like this:
# php -f main.php -- "{query}" | tee ~/Desktop/Spotifious.log