index.php
这样导入得到$two object
require_once('./etc/one.php');
这样会是$two not ojbect
class test
{
function __construct()
{
require_once('./etc/one.php');
}
}
$test = new test();
这是为什么啊。one.php
include './etc/two.php';
$two = new two();include './etc/three.php';
$three = new three();two.php
class two
{
function index(){}
}three.php
class three
{
function __construct()
{
global $two;
if(is_object($two))
{
echo '$two object';
}
else
{
echo '$two not object';
}
}
}
这样导入得到$two object
require_once('./etc/one.php');
这样会是$two not ojbect
class test
{
function __construct()
{
require_once('./etc/one.php');
}
}
$test = new test();
这是为什么啊。one.php
include './etc/two.php';
$two = new two();include './etc/three.php';
$three = new three();two.php
class two
{
function index(){}
}three.php
class three
{
function __construct()
{
global $two;
if(is_object($two))
{
echo '$two object';
}
else
{
echo '$two not object';
}
}
}
抛开页面引入不讲,你第一次使用require_once('./etc/one.php');
类似于代码:class two{
function index(){}
}class three
{
function __construct()
{
global $two;
if(is_object($two))
{
echo '$two object';
}
else
{
echo '$two not object';
}
}
}$two = new two();//$two可以作为全局变量
$three = new three();输出$two object你的第二种方法
class test
{
function __construct()
{
require_once('./etc/one.php');
}
}
$test = new test();
类似于代码:
class two{
function index(){}
}class three
{
function __construct()
{
global $two;
if(is_object($two))
{
echo '$two object';
}
else
{
echo '$two not object';
}
}
}class test{
function __construct()
{
$two = new two();//不能作为全局变量
$three = new three();
}
}
$test = new test()输出$two not ojbect不知道明白否?