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PHP ActiveX Examples

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(PHP ActiveX) Async Task Chain (another example)

Demonstrates using a task chain to run a sequence of FTP tasks asynchronously.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

// All Chilkat classes can be unlocked at once at the beginning of a program
// by calling UnlockBundle.  It requires a Bundle unlock code.
$chilkatGlob = new COM("Chilkat_9_5_0.Global");
$success = $chilkatGlob->UnlockBundle('Anything for 30-day trial.');
if ($success != 1) {
    print $chilkatGlob->LastErrorText . "\n";
    exit;
}

$ftp = new COM("Chilkat_9_5_0.Ftp2");

$ftp->Hostname = 'ftp.someFtpServer.com';
$ftp->Username = '****';
$ftp->Password = '****';

// Connect and login to the FTP server.
$success = $ftp->Connect();
if ($success != 1) {
    print $ftp->LastErrorText . "\n";
    exit;
}

$taskChain = new COM("Chilkat_9_5_0.TaskChain");

// Create a task to change to the remote directory where the file will be uploaded.
// task is a Chilkat_9_5_0.Task
$task = $ftp->ChangeRemoteDirAsync('junk');
if ($ftp->LastMethodSuccess == 0) {
    print $ftp->LastErrorText . "\n";
    exit;
}

// Add this task to the task chain.
$success = $taskChain->Append($task);

// Create a task to upload a file.
$localFilename = 'c:/temp/hamlet.xml';
$remoteFilename = 'hamlet.xml';

// task is a Chilkat_9_5_0.Task
$task = $ftp->PutFileAsync($localFilename,$remoteFilename);
if ($ftp->LastMethodSuccess == 0) {
    print $ftp->LastErrorText . "\n";
    exit;
}

// Add this task to the task chain.
$success = $taskChain->Append($task);

// Start the task chain running in a background thread.
// Each task is run one after the other (on the same background thread) until all tasks have completed.
// The task chain will stop at the first task that fails.
$taskChain->StopOnFailedTask = 1;
$success = $taskChain->Run();
if (!$success) {
    print $taskChain->LastErrorText . "\n";
    exit;
}

// The application is now free to do anything else
// while the FTP commands are being run...

// For this example, we'll simply sleep and periodically
// check to see if the taskchain if finished. 
while ($taskChain->Finished != 1) {

    // Sleep 100 ms.
    $taskChain->SleepMs(100);

}

// A finished task chain could be one that was canceled, aborted, or truly finished.  

// If the task chain "completed", then it ran to completion.  A "completed" task will
// have a StatusInt equal to 7.   If the task finished, but was not completed, then it must've
// been aborted or canceled:
if ($taskChain->StatusInt != 7) {
    print 'Task did not complete.' . "\n";
    print 'task chain status: ' . $taskChain->Status . "\n";
    exit;
}

// If we got to this point, the ChangeRemoteDir and PutFile were successful.
// We can visually verify by examining the LastErrorText that was recorded for each
// of these method calls..
$numTasks = $taskChain->NumTasks;
$taskIdx = 0;

while (($taskIdx < $numTasks)) {

    // task is a Chilkat_9_5_0.Task
    $task = $taskChain->GetTask($taskIdx);

    // Examine the status of this task, and the ResultErrorText
    // (the ResultErrorText is the ftp.LastErrorText captured for FTP method called by the task).
    // Everything should indicate success.
    print 'task status: ' . $task->Status . "\n";
    print 'task log: ' . $task->ResultErrorText . "\n";

    $taskIdx = $taskIdx + 1;
}

$success = $ftp->Disconnect();

?>

 

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