更多时间日期参考
5. server variables (服务器和执行环境信息)
$_SERVER
server_variables.php
复制代码 代码如下:
<?php
echo
'SERVER details:<br />';
echo
'SERVER_NAME: '.
$_SERVER
['SERVER_NAME'].'<br />';
echo
'SERVER_ADD: '.
$_SERVER
['SERVER_ADDR'].'<br />';
echo
'SERVER_PORT: '.
$_SERVER
['SERVER_PORT'].'<br />';
echo
'DOCUMENT_ROOT: '.
$_SERVER
['DOCUMENT_ROOT'].'<br />';
echo
'<br />';
echo
'Page details:<br />';
echo
'REMOTE_ADDR: '.
$_SERVER
['REMOTE_ADDR'].'<br />';
echo
'REMORT_PORT: '.
$_SERVER
['REMOTE_PORT'].'<br />';
echo
'REQUEST_URI: '.
$_SERVER
['REQUEST_URI'].'<br />';
echo
'QUERY_STRING: '.
$_SERVER
['QUERY_STRING'].'<br />';
echo
'REQUEST_METHOD: '.
$_SERVER
['REQUEST_METHOD'].'<br />';
echo
'REQUEST_TIME: '.
$_SERVER
['REQUEST_TIME'].'<br />';
echo
'HTTP_USER_AGENT: '.
$_SERVER
['HTTP_USER_AGENT'].'<br />';
echo
'<br />';
更多详细信息
6.variable_scope(
变量的作用域
global
static
)
static_variables.php
复制代码 代码如下:
<?php
function
test()
{
$a
= 0;
echo
$a
;
$a
++;
}
test();
echo
'<br />';