I wanted to know if this is possible?
I would like to create a cross platform Flash projector and files and than create an ISO from it for the user to download.
Google did not help me much so far...
Of course it is possible to do directly from PHP.
However, as one of the comments to your question states, it's probably going to be easier to call an external binary to do the work for you (Although not all hosts may have mkisofs installed).
If you really must do this from PHP, here's some useful references for you.
ISO 9660 specification (ECMA-119) - This is the file format for "ISO" image files.
PHP pack() and unpack() - These will help you manipulate binary data in PHP.
Once you're familiar with the file structure, you may be able to create some pre-compiled segments, and just patch them at various offsets as well as inserting the payload.
Good luck!
Related
I'm currently working on a personal project for decoding a text or any object in an image.
I'm using GD library for processing image. I have access to every pixel of image and its rgb color.
My question is not about coding,I'm just looking for an algorithm to decode image,or any advise for how to do that and I don't want to use any API, I want to do it by myself.
I know that php has a face detection library, but it only recognizes faces in image, and I don't know how it does that .
for start, I assume that the object is white and the background is black (or any separate colors) .
summary : How can I define an object or a word for a php program and train it to recognize it from a picture?
You have some api which decode simple captcha like this.
Check this link : Captcha Decoded
And try with this api : http://www.opendecoder.com/api, there are many API if you search on google
The process you are trying to implement is called “optical character recognition” and there is some free software available and doing this. With this expressions, you may find more information.
You did not specify the kind of software component you are looking far, so it is hard to be more specific.
This is usually an error-prone process, but you might get better results if you can make regularity assumptions on your input, especially if you already know which character types are used in your input.
Useful starting points could be
http://jwilk.net/software/ocrodjvu
http://unpaper.berlios.de/
If converting to DJVU and using python on a UNIX system is an option for you, you might consider a the first link as a solution. Otherwise you may use the various tools supported by ocrodjvu to start your research. The second is more about pre-processing you might want to do before OCR but still might be useful if you want to implement your own procedure.
I am build a application in Delphi that stores some configuration that is not going to be passive to query filters on the database. So I decided to create some blob text fields to store those configurations that will only be used as keys to configure some modules of the application.
In this Delphi side of the application, I am using NativeXML run-time components to decode the configuration class or record type of each module into/from XML and populate that field on the database.
My problem came when I realized that this application will have a web site module where people will register for clinical attending and this part will need to use some of the configuration stored on that XML on the database. So...
I am newbie on PHP and I wish to know from you if PHP has the ability to do that XML<->Object\Record DeCoding or do I have to look for a library that makes it possible?
Note: If there is only a record type capacity, I will use it, but if not, I prefer to use classes
Edit:
In response to some comments on answers, I would say that I use XML instead of JSON because of this Delphi XML library that suited me well! If someone could point me to a goo JSON DeCode library to convert JSON<->Delphi Objects will really use it instead of XML because I like to work with JSON. Would that solve the problem on the PHP parsing?
That is not that easy in PHP. However there are lots of smart folks out there, who where facing the same problem.
Paul Ferrertt has a XML-Encode Class here:
http://www.paulferrett.com/2009/encoding-an-object-in-xml-with-php/
In PHP there are multiple functions to decode a XML sheet. Start here:
http://www.php.net/manual/en/refs.xml.php
http://php.net/manual/en/function.xml-parse.php
However you won' t be able to get an object back as easy as with json_decode() and that for a reason XML is not meant to transfer objects (and the like) around. You have to write your own conversion methods.
I suggest you to read this : http://www.php.net/manual/en/refs.xml.php. Some of these libraries are easier to use that are others, some others are more powerful, etc.
How do I get a list of all characters available in the TrueType font? using PHP.
PHP does not seem to have any extension that works directly with FreeType, the reigning open source library to deal with TrueType fonts.
You may have to shell out to another language with an appropriate library, like Perl's Font::FreeType::Glyph, which will let you ask each font whether it has a representation of a particular glyph.
In the alternative, you could write the proper PHP extension directly in C.
If I look at your older post, it seems you're stuck in the format 4 subtable extraction. After having extracted the rangeShift value, endCode must be extracted for each segCount value, then reservedPad on its own, then startCode, idDelta, and idRangeOffset must also be extracted for each segCount.
Then it gets harder. You have extracted all the data available, and now have to rebuild the information. For this, you should take a look at this to get a glimpse of what you have to do. With this, you should have all the information needed to finish your code.
Is there a native PHP wbxml API that can be used platform-independently? Perhaps a loadable module?
I have seen the pecl implementations but I have not been able to successfully work with the builds on win32 platforms.
I am not an expert, but what I found out there numbered two options, essentially.
One, the pecl library that you are having trouble with.
Two, I found WBXML encoder and decoder classes in Horde of all places. They might give you a starting point, and since they are open source, they might meet your needs quite nicely. Here is a link where I found them.
http://phpxref.com/xref/horde/lib/XML/WBXML/index.html
I don't know a huge amount about WBXML, but from what I can gather it's a binary-formatted XML file. I suppose at the simplest you could use the XML modules such as simpleXML to generate your XML document, output it as a string and then use PHP's built in file handling functions (fopen, fwrite, etc) to dump the string as binary data to a file. To reverse the process load the file as a string and have SimpleXML parse it.
However, without knowing the specific details of the WBXML format, I'm sure there's more to it tan that. You'd also have to implement the necessary code yourself, but as you could implement it in PHP itself that should make cross-platform portability a bit simpler to accomplish.
Not really an answer as such, I'm afraid, but I hope it gets you going in the right direction.
I'm writing a WordPress plugin to create an eBook from a selected category in most major eBook formats. I would like to support MobiPocket since that's the format used by the Kindle but I'm not sure how to go about it. From what I've read .mobi files are actually Palm Resource Databases (PRC) but I haven't been able to find a PHP class to work with these.
I thought about using exec along with KindleGen but that would be undesirable as it would complicate initial setup. I've also thought about hosting a web service somewhere and using XML-RPC to accomplish this but that also complicates things.
My question is: is there a PHP class/library (PHP-only preferred) that can work with PRC or even better, a class that specialises in creating MobiPocket ebooks? (needs to be open source since I'm releasing under the GPL)
I've tried searching but haven't been able to find anything.
I don't know whether you're still looking for this PHP library, but just in case: https://github.com/raiju/phpMobi. This is a library that creates mobi files from html files.
It's should still be seen as an experimental version, but it should work without a problem for basic document with a few images.
Unfortunately not; however, the binary compiled format is an open specification available at:
http://www.mobipocket.com/dev/article.asp?BaseFolder=prcgen
The only direct way of transforming the uncompiled format is using the native XML functionality of PHP to create them and then invoking a compiler with exec, which I understand you don't want to do. If you go with this route, the link above also has details about this XML format.
You might want to try the mobiperl tools,
https://dev.mobileread.com/trac/mobiperl/wiki
Please note I haven't tested them yet. But they have been
around since at least 2007 so they should work well by now.
google "Mobiperl - Perl tools for handling MobiPocket files" to
find a thread on mobileread board discussing it. As a new
poster I can't put 2 hyperlinks into my reply.
Another tool I have recently found (but not yet tested), is: http://www.phpclasses.org/package/8173-PHP-Generate-Kindle-ebook-file-in-mobi-format.html#files
It is based upon KindleGen, and looks pretty straight forward to implement.