diff --git a/core/core.api.php b/core/core.api.php
index 0be1870b177e45b050d51910cca0ed3b98cd5f91..3b0765104ba5c45f5858e5238a0427826e7040c5 100644
--- a/core/core.api.php
+++ b/core/core.api.php
@@ -1584,7 +1584,7 @@
  * Introduction to namespaces
  *
  * PHP classes, interfaces, and traits in Drupal are
- * @link http://php.net/manual/en/language.namespaces.rationale.php namespaced. @endlink
+ * @link http://php.net/manual/language.namespaces.rationale.php namespaced. @endlink
  * See the
  * @link oo_conventions Objected-oriented programming conventions @endlink
  * for more information.
diff --git a/core/install.php b/core/install.php
index 6bdd6f8c3156e3327b49b96354dd5f363a2c27f3..c88ffeedaacd938eafffc1b47c0d7d6bae163c9e 100644
--- a/core/install.php
+++ b/core/install.php
@@ -35,7 +35,7 @@
 
 // If OPCache is in use, ensure opcache.save_comments is enabled.
 if (OpCodeCache::isEnabled() && !ini_get('opcache.save_comments')) {
-  print 'Systems with OPcache installed must have <a href="http://php.net/manual/en/opcache.configuration.php#ini.opcache.save-comments">opcache.save_comments</a> enabled.';
+  print 'Systems with OPcache installed must have <a href="http://php.net/manual/opcache.configuration.php#ini.opcache.save-comments">opcache.save_comments</a> enabled.';
   exit();
 }
 
diff --git a/core/lib/Drupal/Component/Datetime/DateTimePlus.php b/core/lib/Drupal/Component/Datetime/DateTimePlus.php
index d0e4faf1268130c3966a0fee836acc2a287ee6d4..11611686728ba198e1c82cd16e4ff6891ea37bd6 100644
--- a/core/lib/Drupal/Component/Datetime/DateTimePlus.php
+++ b/core/lib/Drupal/Component/Datetime/DateTimePlus.php
@@ -280,7 +280,7 @@ public static function createFromFormat($format, $time, $timezone = NULL, $setti
    *   parameter and the current timezone are ignored when the $time parameter
    *   either is a UNIX timestamp (e.g. @946684800) or specifies a timezone
    *   (e.g. 2010-01-28T15:00:00+02:00).
-   *   @see http://php.net/manual/en/datetime.construct.php
+   *   @see http://php.net/manual/datetime.construct.php
    * @param array $settings
    *   (optional) Keyed array of settings. Defaults to empty array.
    *   - langcode: (optional) String two letter language code used to control
diff --git a/core/lib/Drupal/Component/Serialization/YamlPecl.php b/core/lib/Drupal/Component/Serialization/YamlPecl.php
index a01f980fd78fc212d856ed769bc986e5dd45adef..8200f49ff03e71b1da1742666188308dfb0da262 100644
--- a/core/lib/Drupal/Component/Serialization/YamlPecl.php
+++ b/core/lib/Drupal/Component/Serialization/YamlPecl.php
@@ -47,7 +47,7 @@ public static function decode($raw) {
     // and then restore it after decoding has occurred. This allows us to turn
     // parsing errors into a throwable exception.
     // @see Drupal\Component\Serialization\Exception\InvalidDataTypeException
-    // @see http://php.net/manual/en/class.errorexception.php
+    // @see http://php.net/manual/class.errorexception.php
     set_error_handler([__CLASS__, 'errorHandler']);
     $ndocs = 0;
     $data = yaml_parse($raw, 0, $ndocs, [
diff --git a/core/lib/Drupal/Core/Datetime/DrupalDateTime.php b/core/lib/Drupal/Core/Datetime/DrupalDateTime.php
index bb7b821bc30d05c3be2a6c99061781f44182a1d8..f921b45b464ff58b8c1d0bec3094e2b43730814a 100644
--- a/core/lib/Drupal/Core/Datetime/DrupalDateTime.php
+++ b/core/lib/Drupal/Core/Datetime/DrupalDateTime.php
@@ -38,7 +38,7 @@ class DrupalDateTime extends DateTimePlus {
    *   timezone are ignored when the $time parameter either is a UNIX timestamp
    *   (e.g. @946684800) or specifies a timezone
    *   (e.g. 2010-01-28T15:00:00+02:00).
-   *   @see http://php.net/manual/en/datetime.construct.php
+   *   @see http://php.net/manual/datetime.construct.php
    * @param array $settings
    *   - validate_format: (optional) Boolean choice to validate the
    *     created date using the input format. The format used in
diff --git a/core/lib/Drupal/Core/Test/TestStatus.php b/core/lib/Drupal/Core/Test/TestStatus.php
index b70dcdd1d8ad33fbc45ddd572898a15d4adaaef9..79459e4eb06f0b716e0c4746d5c8de384f7c333c 100644
--- a/core/lib/Drupal/Core/Test/TestStatus.php
+++ b/core/lib/Drupal/Core/Test/TestStatus.php
@@ -35,7 +35,7 @@ class TestStatus {
    * the returned value could be as high as 127. Since that's the case, this
    * constant should be used for range comparisons, and not just for equality.
    *
-   * @see http://php.net/manual/en/pcntl.constants.php
+   * @see http://php.net/manual/pcntl.constants.php
    */
   const SYSTEM = 3;
 
diff --git a/core/modules/datetime/src/DateTimeComputed.php b/core/modules/datetime/src/DateTimeComputed.php
index 73fb11786270e517b9ae90f06d616b4aaff05475..16f664be5283df95400a25b1abb87c7932b19f0f 100644
--- a/core/modules/datetime/src/DateTimeComputed.php
+++ b/core/modules/datetime/src/DateTimeComputed.php
@@ -58,7 +58,7 @@ public function getValue() {
         // that the local date portion is the same, across nearly all time
         // zones.
         // @see \Drupal\Component\Datetime\DateTimePlus::setDefaultDateTime()
-        // @see http://php.net/manual/en/datetime.createfromformat.php
+        // @see http://php.net/manual/datetime.createfromformat.php
         if ($datetime_type === DateTimeItem::DATETIME_TYPE_DATE) {
           $this->date->setDefaultDateTime();
         }
diff --git a/core/modules/serialization/src/Normalizer/TimeStampItemNormalizerTrait.php b/core/modules/serialization/src/Normalizer/TimeStampItemNormalizerTrait.php
index 78f6030e57106772632a5fc7f5eef0ffefa4bdcc..1ad0d8e66be785995364322d8559abbc42b99ac8 100644
--- a/core/modules/serialization/src/Normalizer/TimeStampItemNormalizerTrait.php
+++ b/core/modules/serialization/src/Normalizer/TimeStampItemNormalizerTrait.php
@@ -20,7 +20,7 @@ trait TimeStampItemNormalizerTrait {
    *
    * @var string[]
    *
-   * @see http://php.net/manual/en/datetime.createfromformat.php
+   * @see http://php.net/manual/datetime.createfromformat.php
    */
   protected $allowedFormats = [
     'UNIX timestamp' => 'U',
diff --git a/core/scripts/run-tests.sh b/core/scripts/run-tests.sh
old mode 100755
new mode 100644
index 407d87a34f6c665952d74a91ad21f3273e391fa6..ae33bb5410f7363f9587b9b37dda0d26e973a1a0
--- a/core/scripts/run-tests.sh
+++ b/core/scripts/run-tests.sh
@@ -1424,7 +1424,7 @@ function simpletest_script_color_code($status) {
  *   string in $array would be identical to $string by changing 1/4 or fewer of
  *   its characters.
  *
- * @see http://php.net/manual/en/function.levenshtein.php
+ * @see http://php.net/manual/function.levenshtein.php
  */
 function simpletest_script_print_alternatives($string, $array, $degree = 4) {
   $alternatives = array();