PHP

Remove a Single Related Item from an Email

Demonstrates the Chilkat Email.DropRelatedItem method, which removes the related item at a given zero-based index. A related item is typically an embedded image or style sheet referenced from the HTML body (via a cid: link or Content-Location). This example adds a related style sheet, then removes it by index, printing the count before and after.

Background: Related items live in the message's multipart/related enclosure and are indexed from 0 to NumRelatedItems - 1. Removing one by index is useful when editing a received message — for example stripping a tracking pixel or an unwanted embedded image — while leaving the HTML body and any other related resources in place. To remove them all at once, use DropRelatedItems.

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<?php

use Chilkat2\Email;

// Demonstrates the DropRelatedItem method, which removes the related item at a given
// zero-based index.  A related item is typically an embedded image or style sheet
// referenced from the HTML body.

$email = new Email();

// Set an HTML body that references a related style sheet by name (Content-Location).
$email->SetHtmlBody('<html><head><link rel="stylesheet" href="styles.css"/></head><body>Styled.</body></html>');

// Add the related item (becomes index 0).
$email->AddRelatedString2('styles.css', 'body { color: navy; }', 'utf-8');
echo 'NumRelatedItems before = ', $email->NumRelatedItems, "\n";

// Remove the related item at index 0.
$email->DropRelatedItem(0);

echo 'NumRelatedItems after = ', $email->NumRelatedItems, "\n";