Fix #7338.

ext/sybase/php_sybase_db.c

@@ -274,7 +274,7 @@ static void php_sybase_do_connect(INTERNAL_FUNCTION_PARAMETERS,int persistent)
 				}
 				convert_to_string(yyhost);
 				host = yyhost->value.str.val;
-				user=passwd=NULL;
+				user=passwd=charset=NULL;
 				hashed_details_length = yyhost->value.str.len+6+3;
 				hashed_details = (char *) emalloc(hashed_details_length+1);
 				sprintf(hashed_details,"sybase_%s__",yyhost->value.str.val);
@@ -290,7 +290,7 @@ static void php_sybase_do_connect(INTERNAL_FUNCTION_PARAMETERS,int persistent)
 				convert_to_string(yyuser);
 				host = yyhost->value.str.val;
 				user = yyuser->value.str.val;
-				passwd=NULL;
+				passwd=charset=NULL;
 				hashed_details_length = yyhost->value.str.len+yyuser->value.str.len+6+3;
 				hashed_details = (char *) emalloc(hashed_details_length+1);
 				sprintf(hashed_details,"sybase_%s_%s_",yyhost->value.str.val,yyuser->value.str.val);
@@ -308,6 +308,7 @@ static void php_sybase_do_connect(INTERNAL_FUNCTION_PARAMETERS,int persistent)
 				host = yyhost->value.str.val;
 				user = yyuser->value.str.val;
 				passwd = yypasswd->value.str.val;
+				charset = NULL;
 				hashed_details_length = yyhost->value.str.len+yyuser->value.str.len+yypasswd->value.str.len+6+3;
 				hashed_details = (char *) emalloc(hashed_details_length+1);
 				sprintf(hashed_details,"sybase_%s_%s_%s",yyhost->value.str.val,yyuser->value.str.val,yypasswd->value.str.val); /* SAFE */