Specifications

We open the mailbox for a user account with a call to the open_mailbox() function that we

have written in mail_fns.php. This function is shown in Listing 27.9.

LISTING 27.9 open_mailbox() Function from mail_fns.php—This Function Connects to a

User Mailbox

function open_mailbox($auth_user, $accountid)

{

// select mailbox if there is only one

if(number_of_accounts($auth_user)==1)

{

$accounts = get_account_list($auth_user);

$selected_account = $accounts[0];

session_register(“selected_account”);

$accountid = $selected_account;

}

// connect to the POP3 or IMAP server the user has selected

$settings = get_account_settings($auth_user, $accountid);

if(!sizeof($settings)) return 0;

$mailbox = “{“.$settings[server];

if($settings[type]==’POP3’)

$mailbox .= ‘/pop3’;

$mailbox .= “:”.$settings[port].”}INBOX”;

// suppress warning, remember to check return value

@ $imap = imap_open($mailbox, $settings[remoteuser],

$settings[remotepassword]);

return $imap;

}

We actually open the mailbox with the imap_open() function. This function has the following

prototype:

int imap_open (string mailbox, string username, string password [, int flags])

The parameters you need to pass to it are as follows:

• mailbox—This string should contain the server name and mailbox name, and optionally

a port number and protocol. The format of this string is

{hostname/protocol:port}boxname

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