Merge branch 'PHP-7.0' into PHP-7.1

diff --cc NEWS
index c1fbefa669ffb5e11adf408ce35097fe81116d00,26376b694dc6246558d59c64c3b50716742bf278..80e91c4dd16f4525f2b9bb85dbb9c4b1f710ee58
--- 1/NEWS
--- 2/NEWS
+++ b/NEWS
@@@ -24,13 -17,13 +24,17 @@@ PH
  - DOM:
    . Fixed bug #67474 (getElementsByTagNameNS filter on default ns). (aboks)
  
 +- Mbstring:
 +  . Fixed bug #73646 (mb_ereg_search_init null pointer dereference).
 +    (Laruence)
 +
+ - Mysqli:
+   . Fixed bug #73462 (Persistent connections don't set $connect_errno).
+     (darkain)
+ 
  - Mysqlnd:
 -  . Fixed issue with decoding BIT columns when having more than one rows in the
 -    result set. 7.0+ problem. (Andrey)
 +  . Optimized handling of BIT fields - less memory copies and lower memory
 +    usage. (Andrey)
    . Fixed bug #73800 (sporadic segfault with MYSQLI_OPT_INT_AND_FLOAT_NATIVE). 
        (vanviegen)
  

diff --cc ext/mysqli/mysqli_nonapi.c
Simple merge

diff --cc ext/standard/pack.c
Simple merge