diff --git a/ext/curl/interface.c b/ext/curl/interface.c
index f5bfb1e9192..0c267e06810 100644
--- a/ext/curl/interface.c
+++ b/ext/curl/interface.c
@@ -2721,6 +2721,7 @@ static int _php_curl_setopt(php_curl *ch, zend_long option, zval *zvalue) /* {{{
 					curl_easy_setopt(ch->cp, CURLOPT_SHARE, sh->share);
 				}
 			}
+			break;
 
 #if LIBCURL_VERSION_NUM >= 0x071500 /* Available since 7.21.0 */
 		case CURLOPT_FNMATCH_FUNCTION:
diff --git a/ext/ereg/regex/regcomp.c b/ext/ereg/regex/regcomp.c
index 730bcf568a5..f55862b9222 100644
--- a/ext/ereg/regex/regcomp.c
+++ b/ext/ereg/regex/regcomp.c
@@ -1276,6 +1276,10 @@ int c;
 	register int ncols = (g->ncsets+(CHAR_BIT-1)) / CHAR_BIT;
 	register unsigned uc = (unsigned char)c;
 
+	if (!g->setbits) {
+		return(0);
+	}
+
 	for (i = 0, col = g->setbits; i < ncols; i++, col += g->csetsize)
 		if (col[uc] != 0)
 			return(1);
diff --git a/ext/pgsql/pgsql.c b/ext/pgsql/pgsql.c
index e4aab66e000..0469c8b1ba6 100644
--- a/ext/pgsql/pgsql.c
+++ b/ext/pgsql/pgsql.c
@@ -6445,6 +6445,9 @@ static inline void build_tablename(smart_str *querystr, PGconn *pg_link, const c
 	/* schame.table should be "schame"."table" */
 	table_copy = estrdup(table);
 	token = php_strtok_r(table_copy, ".", &tmp);
+	if (token == NULL) {
+		token = table;
+	}
 	len = strlen(token);
 	if (_php_pgsql_detect_identifier_escape(token, len) == SUCCESS) {
 		smart_str_appendl(querystr, token, len);