I am trying to display the images in the pdf document that I uploaded to the server as hyperlinks in php so that if user clicks on them they will get the corresponding document.
Please help me ,Thanks in advance!
Use pdfimages, which comes with the open-source xpdf software package (for *nix operating systems). You'll have to call it through exec or the like, then work with the output from PHP. I am not aware of any PHP library that provides this functionality, so you're going to have to experiment.
EDIT
You mentioned that you aren't experienced with PHP... I thought I'd add that this isn't a quick-and-easy type of task, you certainly aren't going to find a bunch of tutorials around the internet for this.
To get started, you'll have to install the xpdf package on your server. There's a lot of different ways to do this depending on which OS you've got.
After that is set up, you'll be using a command line to execute a program on your server; you'll want to capture the output of that command in PHP and work with it further. So initially, you'll want to work out exactly what your command line will look like as well as what the output looks like and means - do this from command line, don't worry about the PHP part yet. In this case, your output is going to be a list of the image files extracted from a given PDF, you're command line call will look something like "pdfimages mypdf.pdf". Play around, find out what happens.
After you work out exactly what command line you need to send and what the command does, you can focus on the PHP angle. In a nutt shell, you want PHP to execute the exact command that you've already worked out. Look at the manual for exec for information on how to call a command line and get the output back. Write your script to make the correct call and show the call's output.
Next, move on to doing something with that output. I presume you'll want to somehow store the extracted images in a web-accessible place, put them in the database, show them to the user, etc. That is the very last stage after you've worked out the initial steps.
Good luck!
Related
Right first a little background that will help put this all in focus.
I have several indd files (indesign). I can convert these to pdf and then to docx.
Using the phpword library I can then effectively do a mail merge and replace several areas of my document with text and one image.
I then want to convert that to a pdf, which I can then stitch several pdfs together for printing with ghostscript.
I have a word macro that I can execute just find via standard command line functions. If I try that same command line in php it just hangs.
I've tried various forms of that, using system, exec, passthru - using Psexec all either hang and then timeout, or don't work and skip through.
I've seen other examples using COM objects thing like this.
http://www.sitepoint.com/make-microsoft-word-documents-php/
all either hang or give me problems with the com object that I'm trying to make.
Am I trying for the impossible, or perhaps is there another way.
I've also given e-PDF Document Converter v2.1 a go but without success.
Currently I'm thinking that there is some permission thing going on but I'm really at a loss as to how to get around it or what to do.
I would maybe like to use either the libreoffice or the openoffice as they both seem to have command line tools but when I open the pdf or the doc file they display very poorly.
Any help.
Thanks
Richard
Update
Just thinking maybe I'll stitch the word documents together and then just allow the user to download it and then they can print it.
Job done easy!
But if there is a better way - I'm open to it.
Update 2
On a windows platform
Maybe something like next ?
sudo apt-get install unoconv
doc2pdf respondus-docx-sample-file.docx
In php :
exec("doc2pdf \"" . $youPdfFile . "\"");
I want to be able to discover if a Debian package has been installed on our production server, the functionality should be just like extension_loaded().
Can anyone suggest a method? I can only assume I should use exec() and parse return value for 'command not found', I'd like to know if there's a safer / better option though.
If you have permission to exec, then you could use one of the following:
whereis packagename
apt-cache policy packagename
You could write a simple API for this. It should do something like the following;
Let php write the wanted packages to a xml file, text file, or database, anything you can read with a shell app, perl app, or whatever.
On the server level, read out the file, database, check if the package exists and return the value in an output file, database table or whatever.
read out the output file with php and show it to your user
The drawback of the above proposed solution is that it takes some time, eg. you cannot check for the availability of the package in realtime. If that is actually mandatory, you could write a php script which does not take any input, but reads out the packages that should be checked from a database or a text file, where the values have been extensively tested, eg. using a regex. On this way you're sure a malicious user cannot inject shell commands.
Has anyone ever done Google Analytics tracking from a PHP command line program?
I have a PHP command line program that is run through cron. It will grab data every 5 minutes and I need to track that.
Looked at the GA library but it looks like either it's using JavaScript or it needs an <img> tag.
Please enlight.
Thank you,
Tee
http://code.google.com/p/serversidegoogleanalytics/
Never used it myself but looks like exactly what you're looking for.
Edit:
Just pondering your question again and realised you were asking specifically for PHP CLI as a command line program. Just wanted to make sure you're aware that you can just use it to call a file and that'll be the only command line part. The rest of the program can be full OOP code (As my suggestion is structured) which includes files and extends classes.
So using CLI as Command line isn't really limiting as your tone suggests.
If you need to track that, just write a log file ..
file_put_contents('/tmp/myscript.log', "running cron\n", FILE_APPEND);
Google Analytics is used to track visits of a website and not cronjob activities. :s
I want to write multiple image files to a odt file. I will be specifying a dir and the script will take it from there thru a loop. But where do i start? I have never done anything like this before!
I found this python code, which can convert html 2 python... so we can parse an html first and then call this one. But there is no reference on how to use this.
html2odt code
Atlast I found a PHP way to write odt direct! Its well documented.
http://www.odtphp.com/
I have also written a complete practical solution in php. You can upload multiple images and get the odt document generated.
The code is hosted at http://code.google.com/p/images2odt/
The first post is done here.
For anyone wanting to use the Python code will need a Python interpreter version 2.6. It might also work with version 2.7. It's mainly used in Linux but there are Windows and Mac versions as well. You will also need the files listed in the from and import statements. These files are in some of the other folders. It looks like it is a part of a much bigger Linux package. One last thing, Python scripts usually takes their arguments from a command line.
Additional info:
I looked over the setup.py file and it told me that this is an API library for open documents called odfpy. The version is 0.9.2. The link it has for the documentation is broken. A google search for odfpy came up with a place to download a more recent version (0.9.4) in a tarbell here:
http://pypi.python.org/pypi/odfpy
The documentation can be found here in an Open Office document:
https://joinup.ec.europa.eu/software/odfpy/document/api-odfpyodt
Don't think that I'm mad, I understand how php works!
That being said. I develop personal website and I usually take advantage of php to avoid repetion during the development phase nothing truly dynamic, only includes for the menus, a couple of foreach and the likes.
When the development phase ends I need to give the website in html files to the client. Is there a tool (crawler?) that can do this for me instead of visiting each page and saving the interpreted html?
You can use wget to download recursively all the pages linked.
You can read more about this here: http://en.wikipedia.org/wiki/Wget#Recursive_download
If you need something more powerful that recursive wget, httrack works pretty well. http://www.httrack.com/
Pavuk offers much finer control than wget. And will rewrite the URLs in the grabbed pages if required.
If you want to use a crawler, I would go for the mighty wget.
Otherwise you could also use some build tool like make.
You need to create a file nameed Makefile in the same folder of your php files.
It should contain this:
all: 1st_page.html 2nd_page.html 3rd_page.html
1st_page.html: 1st_page.php
php command
2nd_page.html: 2nd_page.php
php command
3rd_page.html: 3rd_page.php
php command
Note that the php command is not preceded by spaces but by a tabulation.
(See this page for the php command line syntax.)
After that, whenever you want to update your html files just type
make
in your terminal to automatically generate them.
It could seem a lot of work for just a simple job, but make is a very handy tool that you will find useful to automate other tasks as well.
Maybe, command line will help?
If you're on windows, you can use Free Download Manager to crawl a web-site.