开启gzip压缩网站内容

SetOutputFilter DEFLATE
    # Don’t compress images and other
    SetEnvIfNoCase Request_URI .(?:gif|jpe?g|png)$ no-gzip dont-vary
    SetEnvIfNoCase Request_URI .(?:exe|t?gz|zip|bz2|sit|rar)$ no-gzip dont-vary
    SetEnvIfNoCase Request_URI .(?:pdf|doc)$ no-gzip dont-vary
    AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css 
    AddOutputFilterByType DEFLATE application/javascript

在php文件中写入
ob_start('ob_gzhandler');