- Fixed bug #52971 (PCRE-Meta-Characters not working with utf-8)

#   In  PCRE,  by  default, \d, \D, \s, \S, \w, and \W recognize only ASCII
#       characters, even in UTF-8 mode. However, this can be changed by setting
#       the PCRE_UCP option.

Author: felipensp

ext/pcre/php_pcre.c

@@ -350,7 +350,14 @@ PHPAPI pcre_cache_entry* pcre_get_compiled_regex_cache(char *regex, int regex_le
 			case 'S':	do_study  = 1;					break;
 			case 'U':	coptions |= PCRE_UNGREEDY;		break;
 			case 'X':	coptions |= PCRE_EXTRA;			break;
-			case 'u':	coptions |= PCRE_UTF8;			break;
+			case 'u':	coptions |= PCRE_UTF8;
+	/* In  PCRE,  by  default, \d, \D, \s, \S, \w, and \W recognize only ASCII
+       characters, even in UTF-8 mode. However, this can be changed by setting
+       the PCRE_UCP option. */
+#ifdef PCRE_UCP
+						coptions |= PCRE_UCP;
+#endif			
+				break;
 
 			/* Custom preg options */
 			case 'e':	poptions |= PREG_REPLACE_EVAL;	break;