The PHONGO_ZVAL_CLASS_OR_TYPE_NAME_P macro in php_phongo.h can be replaced with zend_zval_type_name(). There is also a zend_zval_value_name() macro (since php/php-src@7936c80), but that is only available in PHP 8.3+.

PHONGO_ZVAL_CLASS_OR_TYPE_NAME can simply be removed, as that macro was only ever called with a dereferenced zval pointer.

Note that zend_zval_type_name() also applies ZVAL_DEREF to resolve zval references automatically, which is relevant to some recent issues discovered in PHPC-2457.