


Convert word to pdf to swf to realize online preview of word files
# ifconfig
-- After checking the IP address of the virtual machine, the following operations are done through local software to connect
-- Upload all the compressed package files I gave you to the /root directory
# yum -y update
# init 6
-- Restart
# yum -y install vim
-- Install vim
# yum -y install wget
-- Install the download tool
# wget http://pkgs.repoforge.org/unoconv/unoconv-0.5-1. el6.rf.noarch.rpm
-- Download the file unoconv
# yum -y install openoffice*
-- Install openoffice including all plug-ins
# yum install unoconv-0.5-1.el6.rf.noarch.rpm
-- Install Just downloaded unoconv
# mkdir -p /usr/share/fonts/truetype/droid
# cp DroidSansFallbackFull.ttf /usr/share/fonts/truetype/droid/
-- Create a folder
-- Copy the font to this In the folder
# unoconv -f pdf 123.docx
-- If the first execution fails, execute it again
# unoconv -f pdf 123.docx
-- Execute it again to see if 123.pdf is correct
-- Upload nginx, php, and libmcrypt packages
# tar zxf nginx-1.9.2.tar.gz
# tar zxf php-5.6.10.tar.gz
# tar zxf libmcrypt-2.5.8.tar.gz
-- Unzip
# yum -y install gcc gcc-c++ autoconf automake libtool make zlib zlib-devel openssl openssl-devel pcre-devel
-- Install the dependencies required for nginx
# cd nginx-1.9.2
-- Enter the directory
# groupadd -r www
# useradd -s /sbin/nologin -g www -r www
-- Create www user and user group
# ./configure --prefix=/usr/local/nginx --user=www --group =www
-- Configure nginx
# make && make install
-- Install nginx
-- Copy the nginx and php-fpm of the installation package to the /etc/init.d/ directory
# cp ~/nginx /etc/init .d/nginx
# cp ~/php-fpm /etc/init.d/php-fpm
# chmod a+x /etc/init.d/nginx
# chmod a+x /etc/init.d/php -fpm
-- Grant execution permissions to two files
# cd ../libmcrypt-2.5.8
-- Enter the libmcrypt directory
# ./configure
-- Configure libmcrypt
# make && make install
-- Compile and Install libmcrypt
# ln -s /usr/local/lib/libmcrypt.la /usr/lib/libmcrypt.la
# ln -s /usr/local/lib/libmcrypt.so /usr/lib/libmcrypt.so
# ln -s /usr/local/lib/libmcrypt.so.4 /usr/lib/libmcrypt.so.4
# ln -s /usr/local/lib/libmcrypt.so.4.4.8 /usr/lib/libmcrypt .so.4.4.8
-- Create a shortcut
# cd ../php-5.6.10
-- Enter the php installation directory
# yum -y install libxml2-devel bzip2 bzip2-devel curl-devel gd gd-devel
-- Install php dependencies
# ./configure --prefix=/usr/local/php --with-config-file-path=/usr/local/php/etc --enable-fpm --with-fpm -user=www --with-fpm-group=www --enable-sockets --enable-mbstring --enable-sysvsem --enable-sysvshm --enable-gd-native-ttf --enable-mbregex --enable -zip
--enable-pcntl --enable-inline-optimization --disable-debug --with-mhash --with-mcrypt --with-mysql --with-mysqli --with-pdo --with-pdo-mysql - -with-curl --with-bz2 --with-zlib --with-pcre-regex --with-openssl-dir=/usr/lib/openssl --with-openssl --with-gd
--with-jpeg-dir --with-png-dir --with-freetype-dir --with-png-dir
-- Configure php
# make && make install
-- Compile and install php
# cp ~ /php-fpm.conf /usr/local/php/etc/
# cp ~/php.ini /usr/local/php/etc/
# vim /usr/local/nginx/conf/nginx.conf
location ~ .php$ {
RIPT_FILENAME $document_root$fastcgi_script_name;
#fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
use ’s use ’s use using ’s ‐ ‐ ‐ ‐
}
# vim /usr/local/nginx/conf/fastcgi_params
- Modify the nginx configuration file and fastcgi_params configuration mainly to modify the nginx execution user and pathinfo support
set $script $uri;
set $path_info "" ;
if ($uri ~ "^(.+.php)(/.+)") {
set $script $1;
set $path_info $2;
}
fastcgi_param SCRIPT_NAME $script;
fastcgi_param PATH_INFO $path_info;
# mkdir -p /tmp/session
-- Create a php session storage directory
# chown -R www.www /tmp/session
-- Give www user permissions
# service php-fpm start
# service php-fpm restart
-- Start and restart php
# service nginx start
# service nginx restart
-- Start and restart nginx
# vim /etc/sysconfig/iptables
-- Adjust the firewall to modify port 80 to allow access -------find me-------
# service iptables restart
-- Restart the firewall using the edited rules
# vim /usr/local/nginx/html/index .php
-- Create an index.php and write it to phpinfo(). Browser access is confirmed to be normal
# cd /usr/local/nginx/html/
-- Enter the web directory
# rm -rf ./*
-- Delete All files in the current directory
# cp ~/123.docx ./
-- Copy the 123.docx just now to the current directory
# vim index.php
-- The content is like the index.php I gave you
# ln - s /usr/local/php/bin/php /usr/bin/php
-- Place php in the system directory so that php can be used directly
# vim /etc/sudoers
-- Edit this file
-- In Add
below the line root ALL=(ALL) ALL www ALL=(ALL) NOPASSWD:ALL
-- Modify Defaults requiretty and add a # sign in front of it
swftools
Download path
http://www.swftools.org/ download.html
1. Install the required libraries and components. The machine has been installed before, and the following components are mainly installed. If it is not installed, it will prompt machine `x86_64-unknown-linux' not recognized
yum install gcc* automake zlib-devel libjpeg-devel giflib-devel freetype-devel
2. Download, compile and install swftools.
wget http://www.swftools.org/swftools-0.9.2.tar.gz
tar vxzf swftools-0.9.2.tar.gz
cd swftools-0.9.2
./configure --prefix=/usr /swftools
make
make install
3. Set the swftools environment variable to make pdf2swf an executable command
vim /etc/profile
export PATH=$PATH:/usr/swftools/bin/
4. Install the xpdf language pack. Download the xpdf-chinese-simplified.tar.gz file, unzip it to /usr/share/xpdf, edit the add-to-xpdfrc file,
Copyright Statement: This article is an original article by the blogger and may not be reproduced without the blogger's permission. .
The above has introduced the function of converting word to pdf and converting to swf to realize online preview of word files, including the content. I hope it will be helpful to friends who are interested in PHP tutorials.

Absolute session timeout starts at the time of session creation, while an idle session timeout starts at the time of user's no operation. Absolute session timeout is suitable for scenarios where strict control of the session life cycle is required, such as financial applications; idle session timeout is suitable for applications that want users to keep their session active for a long time, such as social media.

The server session failure can be solved through the following steps: 1. Check the server configuration to ensure that the session is set correctly. 2. Verify client cookies, confirm that the browser supports it and send it correctly. 3. Check session storage services, such as Redis, to ensure that they are running normally. 4. Review the application code to ensure the correct session logic. Through these steps, conversation problems can be effectively diagnosed and repaired and user experience can be improved.

session_start()iscrucialinPHPformanagingusersessions.1)Itinitiatesanewsessionifnoneexists,2)resumesanexistingsession,and3)setsasessioncookieforcontinuityacrossrequests,enablingapplicationslikeuserauthenticationandpersonalizedcontent.

Setting the httponly flag is crucial for session cookies because it can effectively prevent XSS attacks and protect user session information. Specifically, 1) the httponly flag prevents JavaScript from accessing cookies, 2) the flag can be set through setcookies and make_response in PHP and Flask, 3) Although it cannot be prevented from all attacks, it should be part of the overall security policy.

PHPsessionssolvetheproblemofmaintainingstateacrossmultipleHTTPrequestsbystoringdataontheserverandassociatingitwithauniquesessionID.1)Theystoredataserver-side,typicallyinfilesordatabases,anduseasessionIDstoredinacookietoretrievedata.2)Sessionsenhances

PHPsessionscanstorestrings,numbers,arrays,andobjects.1.Strings:textdatalikeusernames.2.Numbers:integersorfloatsforcounters.3.Arrays:listslikeshoppingcarts.4.Objects:complexstructuresthatareserialized.

TostartaPHPsession,usesession_start()atthescript'sbeginning.1)Placeitbeforeanyoutputtosetthesessioncookie.2)Usesessionsforuserdatalikeloginstatusorshoppingcarts.3)RegeneratesessionIDstopreventfixationattacks.4)Considerusingadatabaseforsessionstoragei

Session regeneration refers to generating a new session ID and invalidating the old ID when the user performs sensitive operations in case of session fixed attacks. The implementation steps include: 1. Detect sensitive operations, 2. Generate new session ID, 3. Destroy old session ID, 4. Update user-side session information.


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mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
