PHP Extension

Get an Attachment's Bytes into a BinData

Demonstrates the Chilkat Email.GetAttachmentBd method, which copies an attachment's binary data into a BinData object. The first attachment is at index 0. This example adds an attachment and copies its bytes into a BinData, printing the byte count.

Background: This is the safe, binary way to extract an attachment — the counterpart to the text-oriented GetAttachmentString. Because attachments are often binary (PDFs, images, archives), copying the raw bytes into a BinData preserves them exactly, ready to write to a file, hash, or pass to another API without any charset conversion that could corrupt the data.

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<?php

include("chilkat.php");

$success = false;

//  Demonstrates the GetAttachmentBd method, which copies an attachment's binary data into a
//  BinData object.  The first attachment is at index 0.

$email = new CkEmail();
$email->put_Subject('GetAttachmentBd example');

$email->AddStringAttachment('notes.txt','Some notes stored in the attachment.');

//  Copy the first attachment's binary data into a BinData object.
$bd = new CkBinData();
$success = $email->GetAttachmentBd(0,$bd);
if ($success == false) {
    print $email->lastErrorText() . "\n";
    exit;
}

print 'Attachment size (bytes) = ' . $bd->get_NumBytes() . "\n";

?>