Mark PDO::__construct()'s password parameter as sensitive

Author: TimWolla

ext/pdo/pdo_dbh.c

@@ -28,6 +28,7 @@
 #include "php_pdo.h"
 #include "php_pdo_driver.h"
 #include "php_pdo_int.h"
+#include "zend_attributes.h"
 #include "zend_exceptions.h"
 #include "zend_object_handlers.h"
 #include "zend_hash.h"
@@ -1423,6 +1424,13 @@ void pdo_dbh_init(void)
 
 	REGISTER_PDO_CLASS_CONST_LONG("CURSOR_FWDONLY", (zend_long)PDO_CURSOR_FWDONLY);
 	REGISTER_PDO_CLASS_CONST_LONG("CURSOR_SCROLL", (zend_long)PDO_CURSOR_SCROLL);
+
+	zend_add_parameter_attribute(
+		zend_hash_str_find_ptr(&pdo_dbh_ce->function_table, "__construct", sizeof("__construct") - 1),
+		2,
+		zend_ce_sensitive_parameter->name,
+		0
+	);
 }
 
 static void dbh_free(pdo_dbh_t *dbh, bool free_persistent)