- Fixed doc bug #54657: Function parameters can no longer be named after

  superglobal variables.

diff --git a/UPGRADING b/UPGRADING
index f5fcfb76a053874a99fbbac95fc4768f71622a1f..8618742482bc1d5d3c398a8c82ce09d3aee8562f 100755 (executable)
--- a/UPGRADING
+++ b/UPGRADING
@@ -116,6 +116,10 @@ UPGRADE NOTES - PHP X.Y
   
   Now emits a Fatal error due the incompatible declaration.
 
+- In previous versions, names of superglobals could be used for parameter
+  names, thereby shadowing the corresponding superglobal. This now causes a
+  fatal error such as "Cannot re-assign auto-global variable GLOBALS".
+
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 4. Changes made to existing functions
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