A set of macros was introduced into Zend's API that simplify access to zval
containers (see Tabla 42_1)_
Tabla 42_1_ API Macros for Accessing zval Containers
| Macro | Refers to |
| Z_LVAL(zval) | (zval)_value_lval |
| Z_DVAL(zval) | (zval)_value_dval |
| Z_STRVAL(zval) | (zval)_value_str_val |
| Z_STRLEN(zval) | (zval)_value_str_len |
| Z_ARRVAL(zval) | (zval)_value_ht |
| Z_LVAL_P(zval) | (*zval)_value_lval |
| Z_DVAL_P(zval) | (*zval)_value_dval |
| Z_STRVAL_P(zval_p) | (*zval)_value_str_val |
| Z_STRLEN_P(zval_p) | (*zval)_value_str_len |
| Z_ARRVAL_P(zval_p) | (*zval)_value_ht |
| Z_LVAL_PP(zval_pp) | (**zval)_value_lval |
| Z_DVAL_PP(zval_pp) | (**zval)_value_dval |
| Z_STRVAL_PP(zval_pp) | (**zval)_value_str_val |
| Z_STRLEN_PP(zval_pp) | (**zval)_value_str_len |
| Z_ARRVAL_PP(zval_pp) | (**zval)_value_ht |
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