insertion plus robuste dans le formulaire forum

mailsubscribers_pipelines.php

@@ -288,8 +288,10 @@ function mailsubscribers_formulaire_fond($flux) {
 				if (strrpos($flux['data'], '</textarea>') < $pform) {
 					$pform = 0;
 				}
-				if (preg_match(",</(div|ul)>\s*</fieldset>,Uims", substr($flux['data'], $pform), $m)){
-					$p = strpos($flux['data'], $m[0], $pform);
+				if ($p = strripos($flux['data'], "</fieldset>")
+				  and $pfieldset = strripos($flux['data'], "<fieldset", strlen($flux['data'])- $p)
+					and preg_match(",</(div|ul)>\s*</fieldset>,Uims", substr($flux['data'], $pfieldset), $m)){
+					$p = strpos($flux['data'], $m[0], $pfieldset);
 					$c = array_merge($flux['args']['contexte'], array('tag' => ($m[1]=='ul' ? 'li' : 'div')));
 					$input = recuperer_fond("formulaires/inc-optin-subscribe", $c);
 					$flux['data'] = substr_replace($flux['data'], $input, $p, 0);