SSI在php程序中的应用
SSI在php程序中的应用
1、SSI是什么
服务器端嵌入：Server Side Include，是一种类似于ASP的基于服务器的网页制作技术。将内容发送到浏览器之前，可以使用“服务器端包含 (SSI）”指令将文本、图形或应用程序信息包含到网页中。例如，可以使用 SSI 包含时间/日期戳、版权声明或供客户填写并返回的表单。对于在多个文件中重复出现的文本或图形，使用包含文件是一种简便的方法。将内容存入一个包含文件中即可，而不必将内容输入所有文件。通过一个非常简单的语句即可调用包含文件，此语句指示 Web 服务器将内容插入适当网页。而且，使用包含文件时，对内容的所有更改只需在一个地方就能完成。
2、SSI的命令有哪些
[1]显示服务器端环境变量
[2]将文本内容直接插入到文档中
[3]显示WEB文档相关信息 （如文件制作日期/大小等）
[4]直接执行服务器上的各种程序(如CGI或其他可执行程序）
[5]设置SSI信息显示格式；（如文件制作日期/大小显示方式） 高级SSI
3、APACHE配置SSI
Apache默认是不支持SSI的，需要我们更改httpd.conf来进行配置。我这里以windows平台的Apache 2.0.x为例：打开conf目录下的httpd.conf文件，修改一下地方
[1]取出前面的注释
LoadModule include_module modules/mod_include.so
[2]修改Directory
将
<Directory />
Options FollowSymLinks
AllowOverride None
</Directory>
<Directory />
Options Indexes FollowSymLinks Includes
AllowOverride None
</Directory>将
#AddType text/html .shtml #AddOutputFilter INCLUDES .shtml
AddType text/html .shtml .html AddOutputFilter INCLUDES .shtml .html
<!DOCTYPE html> <html> <head> <title>测试SSI</title> </head> <body > <p> <!-- 登陆前显示登录界面，登陆后显示用户名等基本信息 --> <!--#include file="index.php" --> </p> </body> </html>
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