Merge branch 'PHP-7.1' into PHP-7.2

* PHP-7.1:
  Fixed bug #68406 calling var_dump on a DateTimeZone object modifies it

diff --cc NEWS
index e6e9ba9540f0e0813e0af05bb3e0bcb5f23a5a0c,0235d36d52b901521612ae63ff004a30f63eabce..f070163a72366170ae8dfba2b47c801c8e14c783
--- 1/NEWS
--- 2/NEWS
+++ b/NEWS
@@@ -13,7 -10,15 +13,9 @@@ PH
    . Fixed bug #75857 (Timezone gets truncated when formatted). (carusogabriel)
    . Fixed bug #75928 (Argument 2 for `DateTimeZone::listIdentifiers()` should
      accept `null`). (Pedro Lacerda)
+   . Fixed bug #68406 (calling var_dump on a DateTimeZone object modifies it).
+     (jhdxr)
  
 -- PGSQL:
 -  . Fixed #75838 (Memory leak in pg_escape_bytea()). (ard_1 at mail dot ru)
 -
 -- ODBC:
 -  . Fixed bug #73725 (Unable to retrieve value of varchar(max) type). (Anatol)
 -
  - LDAP:
    . Fixed bug #49876 (Fix LDAP path lookup on 64-bit distros). (dzuelke)
  

diff --cc ext/date/php_date.c
Simple merge