<?php
$str = "<body><span class=\"TermText qWord lang-fr\">Je suis</span>";
$dom = new DOMDocument;
@$dom->loadHTML($str, LIBXML_HTML_NOIMPLIED|LIBXML_HTML_NODEFDTD);
$xp = new DOMXPath($dom);
$spans = $xp->query('//span[contains(@class,"lang-fr")]');
foreach ($spans as $span) {
}
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