Check if ReflectionMethod::getDocComment is working

lib/private/util.php

@@ -938,6 +938,18 @@ class OC_Util {
 		return true;
 	}
 
+	/**
+	 * Check if it's possible to get the inline annotations
+	 *
+	 * @return bool
+	 */
+	public static function isAnnotationsWorking() {
+		$reflection = new \ReflectionMethod(__METHOD__);
+		$docs = $reflection->getDocComment();
+
+		return (is_string($docs) && strlen($docs) > 50);
+	}
+
 	/**
 	 * @brief Check if the PHP module fileinfo is loaded.
 	 * @return bool

settings/admin.php

@@ -38,6 +38,7 @@ $tmpl->assign('entriesremain', $entriesremain);
 $tmpl->assign('htaccessworking', $htaccessworking);
 $tmpl->assign('internetconnectionworking', OC_Util::isInternetConnectionEnabled() ? OC_Util::isInternetConnectionWorking() : false);
 $tmpl->assign('isLocaleWorking', OC_Util::isSetLocaleWorking());
+$tmpl->assign('isAnnotationsWorking', OC_Util::isAnnotationsWorking());
 $tmpl->assign('isWebDavWorking', OC_Util::isWebDAVWorking());
 $tmpl->assign('has_fileinfo', OC_Util::fileInfoLoaded());
 $tmpl->assign('old_php', OC_Util::isPHPoutdated());

settings/templates/admin.php

@@ -83,6 +83,21 @@ if (!$_['isWebDavWorking']) {
 <?php
 }
 
+// Are doc blocks accessible?
+if (!$_['isAnnotationsWorking']) {
+	?>
+<fieldset class="personalblock">
+	<h2><?php p($l->t('Setup Warning'));?></h2>
+
+	<span class="securitywarning">
+		<?php p($l->t('PHP is apparently setup to strip inline doc blocks. This will make several core apps inaccessible.')); ?>
+		<?php p($l->t('This is probably caused by a cache/accelerator such as Zend OPcache or eAccelerator.')); ?>
+	</span>
+
+</fieldset>
+<?php
+}
+
 // if module fileinfo available?
 if (!$_['has_fileinfo']) {
 	?>