diff --git a/src/DateExtension.php b/src/DateExtension.php
index 85df1dc..f8bba6a 100644
--- a/src/DateExtension.php
+++ b/src/DateExtension.php
@@ -111,7 +111,7 @@ protected function getFormat($format)
      * 
      * @param int|string $datetype
      * @param int|string $timetype
-     * @param string $calendar
+     * @param int        $calendar
      * @return string
      */
     protected function getDateTimePattern($datetype, $timetype, $calendar = \IntlDateFormatter::GREGORIAN)
diff --git a/src/PcreExtension.php b/src/PcreExtension.php
index 3aaa93d..085e85d 100644
--- a/src/PcreExtension.php
+++ b/src/PcreExtension.php
@@ -134,7 +134,7 @@ public function getAll($value, $pattern, $group = 0)
      * 
      * @param array  $values
      * @param string $pattern
-     * @param strign $flags    Optional 'invert' to return entries that do not match the given pattern.
+     * @param string $flags    Optional 'invert' to return entries that do not match the given pattern.
      * @return array
      */
     public function grep($values, $pattern, $flags = '')
diff --git a/src/TextExtension.php b/src/TextExtension.php
index 2145a21..b6f6db4 100644
--- a/src/TextExtension.php
+++ b/src/TextExtension.php
@@ -108,6 +108,7 @@ public function truncate($value, $length, $replace = '...')
      * @param array  $links     OUTPUT
      * @param string $attr
      * @param string $mode
+     * @return string
      */
     protected function linkifyHttp($protocol, $text, array &$links, $attr, $mode)
     {
@@ -130,6 +131,7 @@ protected function linkifyHttp($protocol, $text, array &$links, $attr, $mode)
      * @param string $text
      * @param array  $links     OUTPUT
      * @param string $attr
+     * @return string
      */
     protected function linkifyMail($text, array &$links, $attr)
     {
@@ -150,6 +152,7 @@ protected function linkifyMail($text, array &$links, $attr)
      * @param array  $links     OUTPUT
      * @param string $attr
      * @param string $mode
+     * @return string
      */
     protected function linkifyOther($protocol, $text, array &$links, $attr, $mode)
     {