| macro | variable | C data-type |
|---|---|---|
| Z_PARAM_ARRAY | array | %zval*% |
| Z_PARAM_ARRAY_HT | array | %HashTable% |
| Z_PARAM_BOOL | boolean | %zend_bool% |
| Z_PARAM_DOUBLE | double | %double% |
| Z_PARAM_LONG | long | %zend_long% |
| Z_PARAM_OBJECT_OF_CLASS | object of specific type | %zval*%, %zend_class_entry% |
| Z_PARAM_PATH | path | %zend_string*% |
| Z_PARAM_STRING | string | %char*%, %size_t% |
| Z_PARAM_STR | string | %zend_string*% |