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Strip quotes from html emails in PHP. See https://b-alidra.com/strip-quoted-text-from-html-emails/
<?php
/**
* Remove the quoted parts from the message body.
*
* It actually handles:
* - Standard <blockquote>...</blockquote>
* - Google
* - Yahoo
* - Thunderbird
* - OSX Mail Client
* - Roundcube
*
* @param Message $message
* The incoming or outcoming message to be cleaned
*
* @return Message
* The cleaned message
*/
public static function strip_quotes_from_message(Message $message)
{
$els_to_remove = [
'blockquote', // Standard quote block tag
'div.moz-cite-prefix', // Thunderbird
'div.gmail_extra', 'div.gmail_quote', // Gmail
'div.yahoo_quoted' // Yahoo
];
$dom = new PHPHtmlParser\Dom;
$dom->load($message->body);
foreach ($els_to_remove as $el) {
$founds = $dom->find($el)->toArray();
foreach ($founds as $f) {
$f->delete();
unset($f);
}
}
// Outlook doesn't respect
// http://www.w3.org/TR/1998/NOTE-HTMLThreading-0105#Appendix%20B
// We need to detect quoted replies "by hand"
//
// Example of Outlook quote:
//
// <div>
// <hr id="stopSpelling">
// Date: Fri. 20 May 2016 17:40:24 +0200<br>
// Subject: Votre facture Selon devis DEV201605201<br>
// From: xxxxxx@microfactures.com<br>
// To: xxxxxx@hotmail.fr<br>
// Lorem ipsum dolor sit amet consectetur adipiscing...
// </div>
//
// The idea is to delete #stopSpelling's parent...
$hr = $dom->find('#stopSpelling', /*nth result*/0);
if (null !== $hr) {
$hr->getParent()->delete();
}
// Roundcube adds a <p> with a sentence like this one, just
// before the quote:
// "Le 21-05-2016 02:25, AB Prog - Belkacem Alidra a écrit :"
// Let's remove it
$pattern = '/Le [0-9]{2}-[0-9]{2}-[0-9]{4} [0-9]{2}:[0-9]{2}, [^:]+ a &eacute;crit&nbsp;:/';
$ps = $dom->find('p')->toArray();
foreach ($ps as $p) {
if (preg_match($pattern, $p->text())) {
$p->delete();
unset($p);
}
}
// Let's remove empty tags like <p> </p>...
$els = $dom->find('p,span,b,strong,div')->toArray();
foreach ($els as $e) {
$html = trim($e->innerHtml());
if (empty($html) || $html == "&nbsp;") {
$e->delete();
unset($e);
}
}
$message->body = $dom->root->innerHtml();
return $message;
}
?>
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