编译php扩展出错，error: ‘zif_say’ undeclared here (not in a function)

Question

Answer 1

函数未定义，你需要写个PHP_FUNCTION(say)的函数，简单如下：

PHP_FUNCTION(say)
{
    zend_string *strg;
    strg = strpprintf(0, "hello world.");
    RETURN_STR(strg);
}