diff --git a/php.ini-development b/php.ini-development
index 9b73f8f58392..15a3e93f42fd 100644
--- a/php.ini-development
+++ b/php.ini-development
@@ -47,7 +47,6 @@
 
 ; Expressions in the INI file are limited to bitwise operators and parentheses:
 ; |  bitwise OR
-; ^  bitwise XOR
 ; &  bitwise AND
 ; ~  bitwise NOT
 ; !  boolean NOT
diff --git a/php.ini-production b/php.ini-production
index a06df3c56c62..eada0979a517 100644
--- a/php.ini-production
+++ b/php.ini-production
@@ -47,7 +47,6 @@
 
 ; Expressions in the INI file are limited to bitwise operators and parentheses:
 ; |  bitwise OR
-; ^  bitwise XOR
 ; &  bitwise AND
 ; ~  bitwise NOT
 ; !  boolean NOT