實測在class的function中include的文件中非php的global全局環境

正如標題所言經測試的結果為：在class中include後,被include文件變量域已經變成func中了,非全局.但是可以通過global提升，感興趣的朋友可以參考下哈，希望對大家有所幫助  

測試代碼1.php

復制代碼 代碼如下:
<?php
$g1 = 'g1';
class c{
function fun() {
include('2.php');
echo "n-----in class fun---n";
global $g1;
var_dump("$g1 => ", $g1
,'$g2 => ', $g2
,'$gg2 => ', $gg2
);
echo "n--------n";
}
}
c::fun();
echo "n--- in 1.php ----n";
var_dump('$g1 => ', $g1
,'$g2 => ', $g2
,'$gg2 => ', $gg2);
echo "n--- ----n";

代碼2.php

復制代碼 代碼如下:
<?php
$g2 = 'g2';
global $gg2;//本環境下並非全局,需要提升
$gg2 = 'gg2';
function g2fun() {
global $g1, $g2, $gg2;
echo "n--- in g2fun ----n";
var_dump('$g1 => ', $g1, '$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";

結果

復制代碼 代碼如下:
--- 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"
--- ----

由此可見,
在class中include後,被include文件變量域已經變成func中了,非全局.
但是可以通過global提升.
一般被include文件在編寫時,可能會由於沒有注意到被include的情況,就覺得有點郁悶了.