Merge branch 'PHP-7.3'

* PHP-7.3:
  Fix #77367: Negative size parameter in mb_split
  Fix #77369 - memcpy with negative length via crafted DNS response
  Fix more issues with encodilng length
  Fix #77270: imagecolormatch Out Of Bounds Write on Heap
  Fix bug #77380  (Global out of bounds read in xmlrpc base64 code)
  Fix bug #77371 (heap buffer overflow in mb regex functions - compile_string_node)
  Fix bug #77370 - check that we do not read past buffer end when parsing multibytes
  Fix #77269: Potential unsigned underflow in gdImageScale
  Fix bug #77247 (heap buffer overflow in phar_detect_phar_fname_ext)
  Fix bug #77242 (heap out of bounds read in xmlrpc_decode())
  Regenerate certs for openssl tests

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

diff --cc ext/standard/dns.c
index 6b542408cd6f1287be347cc8555ff3629a251fab,c06fa04f8976e3e4e6f4cc1fe8f6ffef82014e6d..50f81153a5b0910d1f1179a3da7eb0dfee0b3d58
--- 1/ext/standard/dns.c
--- 2/ext/standard/dns.c
+++ b/ext/standard/dns.c
@@@ -454,7 -454,11 +454,11 @@@ static u_char *php_parserr(u_char *cp, 
        GETLONG(ttl, cp);
        GETSHORT(dlen, cp);
        CHECKCP(dlen);
-       if (type_to_fetch != DNS_T_ANY && type != type_to_fetch) {
 -      if (dlen == 0) {
 -              /* No data in the response - nothing to do */
 -              return NULL;
 -      }
 -      if (type_to_fetch != T_ANY && type != type_to_fetch) {
++    if (dlen == 0) {
++        /* No data in the response - nothing to do */
++        return NULL;
++    }
++    if (type_to_fetch != DNS_T_ANY && type != type_to_fetch) {
                cp += dlen;
                return cp;
        }