测试代码1.php
复制代码 代码如下:
, $g1
,'$g2 => ', $g2
,'$gg2 => ', $gg2
);
echo \n--------\n;
}
}
c::fun();
echo \n--- in 1.php ----\n;
var_dump('$g1 => ', $g1
,'$g2 => ', $g2
,'$gg2 => ', $gg2);
echo \n--- ----\n;
代码2.php
复制代码 代码如下:
', $g1, '$g2 => ', $g2
, '$gg2 => ', $gg2);
echo \n--- ----\n;
}
g2fun();
echo \n--- in 2.php ----\n;
var_dump('$g1 => ', $g1, '$g2 => ', $g2
, '$gg2 => ', $gg2
);
echo \n--- ----\n;
global $g1;
echo \n--- in 2.php global----\n;
var_dump('$g1 => ', $g1, '$g2 => ', $g2
, '$gg2 => ', $gg2
);
echo \n--- ----\n;
结果
复制代码 代码如下:
--- in g2fun ----
string(7) $g1 =>
string(2) g1
string(7) $g2 =>
null
string(8) $gg2 =>
string(3) gg2
--- ----
--- in 2.php ----
string(7) $g1 =>
null
string(7) $g2 =>
string(2) g2
string(8) $gg2 =>
string(3) gg2
--- ----
--- in 2.php global----
string(7) $g1 =>
string(2) g1
string(7) $g2 =>
string(2) g2
string(8) $gg2 =>
string(3) gg2
--- ----
-----in class fun---
string(7) $g1 =>
string(2) g1
string(7) $g2 =>
string(2) g2
string(8) $gg2 =>
string(3) gg2
--------
--- in 1.php ----
string(7) $g1 =>
string(2) g1
string(7) $g2 =>
null
string(8) $gg2 =>
string(3) gg2
--- ----
由此可见,
在class中include后,被include文件变量域已经变成func中了,非全局.
但是可以通过global提升.
一般被include文件在编写时,可能会由于没有注意到被include的情况,就觉得有点郁闷了.
http://www.bkjia.com/phpjc/328040.htmlwww.bkjia.comtruehttp://www.bkjia.com/phpjc/328040.htmltecharticle测试代码1.php 复制代码 代码如下: ?php $g1 = 'g1'; class c{ function fun() { include('2.php'); echo \n-----in class fun---\n; global $g1; var_dump(\$g1 = , $g1 ,'$g2...