Text validator functions and MIME_HEADER_DECODE

We've added a number of functions recently to help making building easier:

  • MIME_HEADER_DECODE - Decodes email header fields encoded in accordance with RFC 2047.

  • IS_EMAIL - Checks if a string follows email standard. It does not verify that the email exists.

  • IS_URL - Checks if a string follows the URL standard.

  • IS_IPV4 - Checks if a string is an IPv4 address.

  • IS_IPV6 - Checks if a string is an IPv6 address.

  • IS_XML - Checks if a string is valid XML.

  • IS_JSON - Checks if a string is valid JSON.

  • IS_YAML - Checks if a string is valid YAML.