PHP ActiveX

Async Methods Returning an Object

See more Async Examples

Demonstrates how to call an asynchronous method that returns an object. This example reads email from a POP3 server using the Async versions of the Chilkat methods. PHP ActiveX

<?php

$success = 0;

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

$success = 0;

$mailman = new COM("Chilkat.MailMan");

// Set the POP3 server's hostname
$mailman->MailHost = 'pop.example.com';

// Set the POP3 login/password and any other requirements..
$mailman->PopUsername = 'myLogin';
$mailman->PopPassword = 'myPassword';
$mailman->PopSsl = 1;
$mailman->MailPort = 995;

// Connect to the POP3 server:
// task is a Chilkat.Task
$task = $mailman->Pop3BeginSessionAsync();
if ($mailman->LastMethodSuccess == 0) {
    print $mailman->LastErrorText . "\n";
    exit;
}

// Start the background task.
$success = $task->Run();
if (!$success) {
    print $task->LastErrorText . "\n";

    exit;
}

// Wait for the POP3 connect task to finish.
// The 1/0 returned by Wait applies to the Wait method call, not the task.
$maxWaitMs = 30000;
$success = $task->Wait($maxWaitMs);
if (!$success or ($task->StatusInt != 7) or ($task->TaskSuccess != 1)) {
    if (!$success) {
        // The task.LastErrorText applies to the Wait method call.
        print $task->LastErrorText . "\n";
    }
    else {
        // The ResultErrorText applies to the underlying task method call (i.e. the Pop3BeginSession)
        print $task->Status . "\n";
        print $task->ResultErrorText . "\n";
    }

    exit;
}

// Get the number of messages in the mailbox.
// task is a Chilkat.Task
$task = $mailman->GetMailboxCountAsync();

// To keep the example short, we'll skip handling failures.
// The failures would be handled in the same way as shown above.

$success = $task->Run();
$success = $task->Wait($maxWaitMs);
$numMessages = $task->GetResultInt();

if ($numMessages == 0) {
    exit;
}

$email = new COM("Chilkat.Email");

for ($i = 1; $i <= $numMessages; $i++) {

    // task is a Chilkat.Task
    $task = $mailman->FetchByMsgnumAsync($i);
    if ($mailman->LastMethodSuccess == 0) {
        print $mailman->LastErrorText . "\n";
        exit;
    }

    $success = $task->Run();
    $success = $task->Wait($maxWaitMs);
    if (!$success or ($task->StatusInt != 7) or ($task->TaskSuccess != 1)) {
        if (!$success) {
            // The task.LastErrorText applies to the Wait method call.
            print $task->LastErrorText . "\n";
        }
        else {
            // The ResultErrorText applies to the underlying task method call (i.e. the FetchByMsgnum)
            print $task->Status . "\n";
            print $task->ResultErrorText . "\n";
        }

        exit;
    }

    // Each Chilkat object that can be a return value of an asynchronous task will
    // have a method named LoadTaskResult.  The object returned in the underlying
    // asynchronous method call is retrieved by calling LoadTaskResult. 

    // To say it another way: The application will provide a pre-existing object of
    // the desired return type (in this case it is an email object).  This object is
    // loaded by calling LoadTaskResult.  

    $success = $email->LoadTaskResult($task);

    if (!$success) {
        print $email->LastErrorText . "\n";
        exit;
    }
    else {
        print $email->From . ': ' . $email->Subject . '\n' . "\n";
    }

}


?>