To get these functions to work, you have to compile
PHP with –with-imap[=DIR] , where DIR is the
c-client install prefix. From our example above, you would use
This location depends on where you created this directory according
to the description above. Windows
users may include the php_imap.dll DLL
IMAP is not supported on systems earlier than
Windows 2000. This is because it uses encryption functions in order
to enable SSL connections to the mail servers.
Note: Depending on how the c-client was configured, you might
also need to add –with-imap-ssl=/path/to/openssl/
and/or –with-kerberos=/path/to/kerberos to
the PHP configure line.