From 0fd0b3039b23524e5959c2243a25fe2ff53db175 Mon Sep 17 00:00:00 2001
From: diosmosis <diosmosis@users.noreply.github.com>
Date: Wed, 4 Mar 2020 16:36:12 -0800
Subject: Avoid warning from passing 2 args to ucwords() on older PHP versions
 (#14734) (#15650)

* Don't use ucwords on older versions of PHP

* Add comment

Co-authored-by: Kate Butler <kate@innocraft.com>
---
 core/Http.php | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

(limited to 'core/Http.php')

diff --git a/core/Http.php b/core/Http.php
index f7dc89f9de..063379a727 100644
--- a/core/Http.php
+++ b/core/Http.php
@@ -934,9 +934,12 @@ class Http
          * With HTTP/2 Cloudflare is passing headers in lowercase (e.g. 'content-type' instead of 'Content-Type')
          * which breaks any code which uses the header data.
          */
-        $camelName = ucwords($name, '-');
-        if ($camelName !== $name) {
-            $headers[$camelName] = trim($value);
+        if (version_compare(PHP_VERSION, '5.5.16', '>=')) {
+            // Passing a second arg to ucwords is not supported by older versions of PHP
+            $camelName = ucwords($name, '-');
+            if ($camelName !== $name) {
+                $headers[$camelName] = trim($value);
+            }
         }
     }
 
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