Merge branch 'PHP-7.0' into PHP-7.1

diff --cc NEWS
index 238bf3e175cc80f8ce862913a085319ed847b785,9af35ebea214c3931cdb2d57d0e04b704b430c85..2cbb5a6b12efbe18c8946e18f5e07ae9cfe790ba
--- 1/NEWS
--- 2/NEWS
+++ b/NEWS
@@@ -24,6 -15,13 +24,10 @@@ PH
      imagesetinterpolation()). (cmb)
    . Fixed bug #73279 (Integer overflow in gdImageScaleBilinearPalette()). (cmb)
  
 -- phpdbg:
 -  . Properly allow for stdin input from a file. (Bob)
 -
+ - Session:
+   . Fixed bug #73273 (session_unset() empties values from all variables in which
+     is $_session stored). (Nikita)
+ 
  - Standard:
    . Fixed bug #73203 (passing additional_parameters causes mail to fail). (cmb)
  

diff --cc ext/session/session.c
Simple merge