PHP-在php扩展中实例化对象并调用方法

Question

使用函数宏call_user_function调用类中的方法：
如下：

    ZEND_FUNCTION(call_say){
    //调用myclass中的say方法
    zval *obj,*method_construct,*method_say,*name,*age;
    int name_len,age_len;
    zend_uint param_count=ZEND_NUM_ARGS();
    zval *params[param_count];

    MAKE_STD_ZVAL(obj);
    MAKE_STD_ZVAL(method_construct);
    MAKE_STD_ZVAL(method_say);

    object_init_ex(obj, people_ce);
    
    ZVAL_STRINGL(method_construct,"__construct",sizeof("say")-1,1);
    ZVAL_STRINGL(method_say,"say",sizeof("say")-1,1);
    
    //获取参数
    if(zend_parse_parameters(param_count TSRMLS_CC,"ss",&name,&name_len,&age,&age_len)==FAILURE){
        WRONG_PARAM_COUNT;
    }

    params[0]=name;
    params[1]=age;

    //__construct中存在参数 
    call_user_function(NULL, &obj, method_construct, NULL,param_count,params TSRMLS_CC); 
    call_user_function(NULL, &obj, method_say,NULL,0,NULL TSRMLS_CC);
    
    zval_ptr_dtor(&obj);
    zval_ptr_dtor(&method_construct);
    zval_ptr_dtor(&method_say);
    return;
}

Answer 1

自己解决了 retval没有设置就出现这个错误： 首先定义：zval *retval; 分配内存：MAKE_STD_ZVAL(retval)

call_user_function(NULL, &obj, method_say, retval, 0, NULL TSRMLS_CC)