diff --git a/ext/date/php_date.c b/ext/date/php_date.c
index 1f052d8a2e46..bb013f26f2ad 100644
--- a/ext/date/php_date.c
+++ b/ext/date/php_date.c
@@ -360,6 +360,13 @@ static void date_period_unset_property(zend_object *object, zend_string *name, v
 static HashTable *date_period_get_properties_for(zend_object *object, zend_prop_purpose purpose);
 static int date_object_compare_timezone(zval *tz1, zval *tz2);
 
+static PHP_RINIT_FUNCTION(date);
+static PHP_RSHUTDOWN_FUNCTION(date);
+static PHP_MINIT_FUNCTION(date);
+static PHP_MSHUTDOWN_FUNCTION(date);
+static PHP_MINFO_FUNCTION(date);
+static ZEND_MODULE_POST_ZEND_DEACTIVATE_D(date);
+
 /* {{{ Module struct */
 zend_module_entry date_module_entry = {
 	STANDARD_MODULE_HEADER,
@@ -399,7 +406,7 @@ static void _php_date_tzinfo_dtor(zval *zv) /* {{{ */
 } /* }}} */
 
 /* {{{ PHP_RINIT_FUNCTION */
-PHP_RINIT_FUNCTION(date)
+static PHP_RINIT_FUNCTION(date)
 {
 	if (DATEG(timezone)) {
 		efree(DATEG(timezone));
@@ -413,7 +420,7 @@ PHP_RINIT_FUNCTION(date)
 /* }}} */
 
 /* {{{ PHP_RSHUTDOWN_FUNCTION */
-PHP_RSHUTDOWN_FUNCTION(date)
+static PHP_RSHUTDOWN_FUNCTION(date)
 {
 	if (DATEG(timezone)) {
 		efree(DATEG(timezone));
@@ -428,7 +435,7 @@ PHP_RSHUTDOWN_FUNCTION(date)
 }
 /* }}} */
 
-ZEND_MODULE_POST_ZEND_DEACTIVATE_D(date)
+static ZEND_MODULE_POST_ZEND_DEACTIVATE_D(date)
 {
 	if (DATEG(tzcache)) {
 		zend_hash_destroy(DATEG(tzcache));
@@ -447,7 +454,7 @@ ZEND_MODULE_POST_ZEND_DEACTIVATE_D(date)
 #define DATE_TIMEZONEDB      php_date_global_timezone_db ? php_date_global_timezone_db : timelib_builtin_db()
 
 /* {{{ PHP_MINIT_FUNCTION */
-PHP_MINIT_FUNCTION(date)
+static PHP_MINIT_FUNCTION(date)
 {
 	php_date_global_timezone_db = NULL;
 	php_date_global_timezone_db_enabled = 0;
@@ -463,7 +470,7 @@ PHP_MINIT_FUNCTION(date)
 /* }}} */
 
 /* {{{ PHP_MSHUTDOWN_FUNCTION */
-PHP_MSHUTDOWN_FUNCTION(date)
+static PHP_MSHUTDOWN_FUNCTION(date)
 {
 	UNREGISTER_INI_ENTRIES();
 
@@ -480,7 +487,7 @@ PHP_MSHUTDOWN_FUNCTION(date)
 /* }}} */
 
 /* {{{ PHP_MINFO_FUNCTION */
-PHP_MINFO_FUNCTION(date)
+static PHP_MINFO_FUNCTION(date)
 {
 	const timelib_tzdb *tzdb = DATE_TIMEZONEDB;
 
diff --git a/ext/date/php_date.h b/ext/date/php_date.h
index 97a49974f1a4..03374eb4c70f 100644
--- a/ext/date/php_date.h
+++ b/ext/date/php_date.h
@@ -41,13 +41,6 @@
 extern zend_module_entry date_module_entry;
 #define phpext_date_ptr &date_module_entry
 
-PHP_RINIT_FUNCTION(date);
-PHP_RSHUTDOWN_FUNCTION(date);
-PHP_MINIT_FUNCTION(date);
-PHP_MSHUTDOWN_FUNCTION(date);
-PHP_MINFO_FUNCTION(date);
-ZEND_MODULE_POST_ZEND_DEACTIVATE_D(date);
-
 typedef struct _php_date_obj php_date_obj;
 typedef struct _php_timezone_obj php_timezone_obj;
 typedef struct _php_interval_obj php_interval_obj;
@@ -126,12 +119,8 @@ PHPAPI time_t php_time(void);
 
 /* Backwards compatibility wrapper */
 PHPAPI zend_long php_parse_date(const char *string, zend_long *now);
-PHPAPI void php_mktime(INTERNAL_FUNCTION_PARAMETERS, bool gmt);
 PHPAPI bool php_idate(char format, time_t ts, bool localtime, int *result);
 
-#define _php_strftime php_strftime
-
-PHPAPI void php_strftime(INTERNAL_FUNCTION_PARAMETERS, bool gm);
 PHPAPI zend_string *php_format_date(const char *format, size_t format_len, time_t ts, bool localtime);
 PHPAPI zend_string *php_format_date_obj(const char *format, size_t format_len, const php_date_obj *date_obj);