From 6b906e3d45d023a7432f3f509bc9509d1f9bf2e3 Mon Sep 17 00:00:00 2001
From: Mohamed Said <themsaid@gmail.com>
Date: Tue, 8 Nov 2016 16:33:51 +0200
Subject: [PATCH] escape the delimiter before preg_match (#16309)

---
 src/Illuminate/Validation/Validator.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Illuminate/Validation/Validator.php b/src/Illuminate/Validation/Validator.php
index 998c3efe7cd7..a8184f218d99 100755
--- a/src/Illuminate/Validation/Validator.php
+++ b/src/Illuminate/Validation/Validator.php
@@ -2790,7 +2790,7 @@ protected function dependsOnOtherFields($rule)
      */
     protected function getExplicitKeys($attribute)
     {
-        $pattern = str_replace('\*', '([^\.]+)', preg_quote($this->getPrimaryAttribute($attribute)));
+        $pattern = str_replace('\*', '([^\.]+)', preg_quote($this->getPrimaryAttribute($attribute), '/'));
 
         if (preg_match('/^'.$pattern.'/', $attribute, $keys)) {
             array_shift($keys);