php图片文件 下载文件 防盗链设置方法
在php中最简单的防盗链办法就是利用php的$_SERVER[\'HTTP_REFERER\']函数来操作了,但是此方法不可靠了,我们最终还是需要使用apache,iis来进行操作的,下面我分享介绍了,有需要的朋友可参考。
php防盗链
代码如下 | 复制代码 |
session_start(); |
检查session变数,判断是否造访首页。并且检查他的来源网页参考(HTTP_REFERER)是否来自本地网站的网页。
方法如下:
代码如下 | 复制代码 |
session_start(); ?> |
注意:这个只能简单的防盗链了,如果稍懂一点的就可以破解了,
利用服务器来设置php防盗连
apache防盗链
修改httpd.conf
代码如下 | 复制代码 |
SetEnvIfNoCase Referer "^" local_ref=1 |
如果希望显示一张“禁止盗链”的图片,我们可以用mod_rewrite 来实现。
首先在安装 apache 时要加上 --enable-rewrite 参数加载 mod_rewrite 模组。
假设“禁止盗链”的图片为abc.gif,我们在 httpd.conf 中可以这样配置:
代码如下 | 复制代码 |
RewriteEngine on RewriteCond %{HTTP_REFERER} !^$ RewriteCond %{HTTP_REFERER} !^http://(www.)?hzhuti.com /.*$ [NC] RewriteRule .(gif|jpg)$ abc.gif [R,L] DocumentRoot "/usr/local/apache/htdocs" #设置存放站点html文件的目录。 Options FollowSymLinks AllowOverride None |
iis防盗链
执行文件选择 c:RewriteRewrite.dll 即可以了
httpd.ini是配置文件
图片防盗链代码
代码如下 | 复制代码 |
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