Zend_Mime is a support class for handling multipart MIME messages. It is used by Zend_Mail and Zend_Mime_Message and may be used by applications requiring MIME support.

Zend_Mime provides a simple set of static helper methods to work with MIME:

• Zend_Mime::isPrintable(): Returns TRUE if the given string contains no unprintable characters, FALSE otherwise.

• Zend_Mime::encode(): Encodes a string with specified encoding.

• Zend_Mime::encodeBase64(): Encodes a string into base64 encoding.

• Zend_Mime::encodeQuotedPrintable(): Encodes a string with the quoted-printable mechanism.

• Zend_Mime::encodeBase64Header(): Encodes a string into base64 encoding for Mail Headers.

• Zend_Mime::encodeQuotedPrintableHeader(): Encodes a string with the quoted-printable mechanism for Mail Headers.

Zend_Mime defines a set of constants commonly used with MIME Messages:

• Zend_Mime::TYPE_OCTETSTREAM: 'application/octet-stream'

• Zend_Mime::TYPE_TEXT: 'text/plain'

• Zend_Mime::TYPE_HTML: 'text/html'

• Zend_Mime::ENCODING_7BIT: '7bit'

• Zend_Mime::ENCODING_8BIT: '8bit'

• Zend_Mime::ENCODING_QUOTEDPRINTABLE: 'quoted-printable'

• Zend_Mime::ENCODING_BASE64: 'base64'

• Zend_Mime::DISPOSITION_ATTACHMENT: 'attachment'

• Zend_Mime::DISPOSITION_INLINE: 'inline'

• Zend_Mime::MULTIPART_ALTERNATIVE: 'multipart/alternative'

• Zend_Mime::MULTIPART_MIXED: 'multipart/mixed'

• Zend_Mime::MULTIPART_RELATED: 'multipart/related'

When Instantiating a Zend_Mime Object, a MIME boundary is stored that is used for all subsequent non-static method calls on that object. If the constructor is called with a string parameter, this value is used as a MIME boundary. If not, a random MIME boundary is generated during construction time.

A Zend_Mime object has the following Methods:

• boundary(): Returns the MIME boundary string.

• boundaryLine(): Returns the complete MIME boundary line.

• mimeEnd(): Returns the complete MIME end boundary line.