PHP Extension

Add a Related Item from a BinData Object

Demonstrates the Chilkat Email.AddRelatedBd method, which adds a related item (such as an inline image) using the contents of a BinData object, and returns the generated Content-ID. This example loads an image into a BinData, adds it, captures the Content-ID, and references it from the HTML body.

Background: This is the binary, Content-ID-based way to embed an inline resource — the right choice for images, whose bytes belong in a BinData rather than a string. Because Chilkat generates the Content-ID, the usual pattern is: add the item first, capture the returned ID, then build the matching <img src="cid:..."> reference from it (done here with a StringBuilder).

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<?php

include("chilkat.php");

$success = false;

//  Demonstrates the AddRelatedBd method, which adds a related item (such as an inline image)
//  using the contents of a BinData object, and returns the generated Content-ID.

$email = new CkEmail();
$email->put_Subject('Related image from BinData');

//  Load the image data from a file into a BinData object.
$bdImage = new CkBinData();
$success = $bdImage->LoadFile('qa_data/images/logo.png');
if ($success == false) {
    print $bdImage->lastErrorText() . "\n";
    exit;
}

//  Add the image as a related item; capture its generated Content-ID.
$cid = $email->addRelatedBd('logo.png',$bdImage);
if ($email->get_LastMethodSuccess() == false) {
    print $email->lastErrorText() . "\n";
    exit;
}

//  Reference the related item in the HTML body by its Content-ID.
$sbHtml = new CkStringBuilder();
$sbHtml->Append('<html><body><img src=\'cid:PLACEHOLDER_CID\'/></body></html>');
$numReplaced = $sbHtml->Replace('PLACEHOLDER_CID',$cid);
$email->SetHtmlBody($sbHtml->getAsString());

print 'NumRelatedItems = ' . $email->get_NumRelatedItems() . "\n";

//  Note: The path "qa_data/images/logo.png" is a relative local filesystem path,
//  relative to the current working directory of the running application.

?>