ZEND_API zend_bool ZEND_FASTCALL zend_is_identical(zval *op1, zval *op2) /* {{{ */
{
	if (Z_TYPE_P(op1) != Z_TYPE_P(op2)) {
		return 0;
	}
	switch (Z_TYPE_P(op1)) {
		case IS_NULL:
		case IS_FALSE:
		case IS_TRUE:
			return 1;
		case IS_LONG:
			return (Z_LVAL_P(op1) == Z_LVAL_P(op2));
		case IS_RESOURCE:
			return (Z_RES_P(op1) == Z_RES_P(op2));
		case IS_DOUBLE:
			return (Z_DVAL_P(op1) == Z_DVAL_P(op2));
		case IS_STRING:
			return zend_string_equals(Z_STR_P(op1), Z_STR_P(op2));
		case IS_ARRAY:
			return (Z_ARRVAL_P(op1) == Z_ARRVAL_P(op2) ||
				zend_hash_compare(Z_ARRVAL_P(op1), Z_ARRVAL_P(op2), (compare_func_t) hash_zval_identical_function, 1) == 0);
		case IS_OBJECT:
			return (Z_OBJ_P(op1) == Z_OBJ_P(op2));
		default:
			return 0;
	}
}
Unknown