Merge branch 'PHP-7.2' into PHP-7.3

* PHP-7.2:
  Fix #77827: preg_match does not ignore \r in regex flags

NEWS

@@ -14,6 +14,10 @@ PHP                                                                        NEWS
   . Fixed bug #77773 (Unbuffered queries leak memory - MySQLi / mysqlnd).
     (Nikita)
 
+- PCRE:
+  . Fixed bug #77827 (preg_match does not ignore \r in regex flags). (requinix,
+    cmb)
+
 - phpdbg:
   . Fixed bug #76801 (too many open files). (alekitto)
   . Fixed bug #77800 (phpdbg segfaults on listing some conditional breakpoints).

ext/pcre/php_pcre.c

@@ -695,6 +695,7 @@ PHPAPI pcre_cache_entry* pcre_get_compiled_regex_cache(zend_string *regex)
 
 			case ' ':
 			case '\n':
+			case '\r':
 				break;
 
 			default:

ext/pcre/tests/bug77827.phpt

@@ -0,0 +1,14 @@
+--TEST--
+Bug #77827 (preg_match does not ignore \r in regex flags)
+--FILE--
+<?php
+var_dump(
+    preg_match("/foo/i\r", 'FOO'),
+    preg_last_error()
+);
+?>
+===DONE===
+--EXPECT--
+int(1)
+int(0)
+===DONE===