Merge branch 'PHP-7.0' into PHP-7.1

diff --cc NEWS
index c58c2fd72404ad594294d4b2c29b4ce0f4a41f28,3fe60ff8eae2b244305778c5804052b76aeab4a8..1e346f0640b5c5e76810349a01b44f7563402278
--- 1/NEWS
--- 2/NEWS
+++ b/NEWS
@@@ -23,10 -61,12 +23,12 @@@ PH
  - mbstring:
    . Fixed bug #72691 (mb_ereg_search raises a warning if a match zero-width).
      (cmb)
+   . Fixed Bug #72693 (mb_ereg_search increments search position when a match
+     zero-width). (cmb)
  
 -- Opcache:
 -  . Fixed bug #72590 (Opcache restart with kill_all_lockers does not work).
 -    (Keyur)
 +- Mysqlnd:
 +  . Fixed bug #71863 (Segfault when EXPLAIN with "Unknown column" error when
 +    using MariaDB). (Andrey)
  
  - PCRE:
    . Fixed bug #72688 (preg_match missing group names in matches). (cmb)

diff --cc ext/mbstring/php_mbregex.c
Simple merge