Miscellaneous
- gravatar_code
- Calculate the gravatar code for an e-mail address:
- Format a plain text Tweet into HTML.
- ip2country
- Maps an IP address to a country using the MaxMind GeoIP2 database.
- ip2geo
- Maps an IP address to information about that country.
- is_letsencrypt_valid_hostname
- Test if a hostname can be used for a Let’s Encrypt certificate.