register_user_shutdown_function 1642 session/session.c if (!register_user_shutdown_function("session_shutdown", sizeof("session_shutdown"), &shutdown_function_entry TSRMLS_CC)) { register_user_shutdown_function 260 standard/basic_functions.h PHPAPI extern zend_bool register_user_shutdown_function(char *function_name, size_t function_len, php_shutdown_function_entry *shutdown_function_entry TSRMLS_DC);