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Digg Fileinfo FunctionsThe functions in this module try to guess the content type and encoding of a file by looking for certain magic byte sequences at specific positions within the file. While this is not a bullet proof approach the heuristics used do a very good job. Information for installing this PECL extension may be found in the manual chapter titled Installation of PECL extensions. Additional information such as new releases, downloads, source files, maintainer information, and a CHANGELOG, can be located here: » http://pecl.php.net/package/fileinfo There is one resource used in Fileinfo extension: a magic database descriptor returned by finfo_open(). The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.
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Code Examples / Notes » ref.fileinfoalexey
Well, it is hard to install and use this extension. There is better alternative - use lunux comand "file". For insturctions - "man file" from linux shell. <? echo system("file -i -b file.pdf"); ?> application/pdf danielwalker
Using the Unix 'file' program with the -i switch will not work reliably. Consider the following plain-text CSV file (we'll call it 'error.csv'), which has the contents: GIFT,WRAPPED,ERRORS,ON,LOOKING,At,FILES ...just that one line: nothing above it, nothing below. Now, what does asking: file -i error.csv ...give us for this file? Yes, that's right - 'error.csv: image/gif' Why? Because the first line starts 'GIF...', that's why. You cannot trust file. jon
To get v1.0.4 working on my Ubuntu Feisty system, I had to do the following. It's probably the same on Debian. * apt-get install libmagic1-dev * pecl install Fileinfo * Add "extension=fileinfo.so" to php.ini (/etc/php5/{cli,cgi}/php.ini) * ln -s /usr/share/file/magic /etc/magic.mime bob
This is the most impossible module to get functioning. There's about zero way to get it to function on OS X, and it's supposed to be the de facto way to pull mime types and other file info? Seriously, the whole thing and all dependencies need to be bundled with PHP. paul
The results of this function seem to be of dubious quality. eg 1) a Word doc returns: 'application/msword application/msword' ...ok not too bad, but why does it come back twice? 2) a PHP file comes back as: 'text/x-c++; charset=us-ascii' My test file started with '<?php' so not ambiguous really. And where does it get the charset assumption from? 3) a text doc that starts with the letters 'GIF' comes back as: 'image/gif' (just like in DanielWalker's example for the unix 'file' command) I had better results using the PEAR 'MIME_Type' package. It gave proper answers for 1 & 3 and identified the PHP file as 'text/plain' which is probably better than a false match for C++ Both finfo_file and MIME_Type correctly identified my other two test files which were a windows exe renamed with .doc extension, and a PDF also renamed with .doc extension. deanariel
Sometime "pear install fileinfo" won't work.... so you can try "pear install pecl/fileinfo" aidan
PHP Warning: finfo::finfo(): Failed to load magic database at '/etc/magic' PHP Warning: finfo::file(): The invalid fileinfo object These errors can be rectified by copying your magic database (depending on your distro, this file can be anywhere, on debian it's in /usr/share/file/magic) to /etc/magic.mime libmagic automatically appends the .mime to the end of the filename, so PHP incorrectly reports the path it was looking for. The same applies for: PHP Warning: finfo::finfo(): Failed to load magic database at '/etc/magic.mime' Unfortunately users will have to call the magic file /etc/magic.mime.mime in this case. bujuzu a~t gmail.com
If, like I was, you are looking for a quick and easy way to grab a mime type on a file, and don't feel like fiddling around with extentions or pear or any of that, a unix native 'file -i' command will usually do the trick - that is, if you are able to use shell commands.
motin
I had a real headache trying to install this package through pear/pecl. Ran into what looks like this bug: http://pecl.php.net/bugs/bug.php?id=7673 (phpize fails) I found downloading the package manually and running ./configure helped show what the problem is: ... checking for fileinfo support... yes, shared checking for magic files in default path... not found configure: error: Please reinstall the libmagic distribution <quit> I though this was because of a missing magic-database like magic.mime but examining the configure-script, magic.h is searched for. Problem for me was that include/magic.h was not found. After some googling about where to find magic.h led me to the dead simple solution: apt-get install libmagic-dev This does NOT solve the original installation bug strangely enough, but allows for manual installation: 1. Find the url to the latest version of fileinfo from http://pecl.php.net/package/Fileinfo (atm: http://pecl.php.net/get/Fileinfo-1.0.4.tgz) 2. Download, compile and install wget http://pecl.php.net/get/Fileinfo-1.0.4.tgz gunzip Fileinfo-1.0.4.tgz tar -xvf Fileinfo-1.0.4.tar cd fileinfo-1.0.4 ./configure make make install 3. Add extension=fileinfo.so in your php.ini file 4. Restart Apache szotsaki
I am about to write how installed this package. First of all, I tried with "pear install fileinfo" - as the manual says. But the pear command said that 'Package "Fileinfo" is not valid, install failed'. Then the "pear install pecl/fileinfo" was a better way. But at that time the "phpize" command was missing. I installed that (on openSUSE distributions it is in the php5-devel, but I think you can find it in your distro's corresponding php-devel package). After that you may install "re2c" (I did). It's homepage is: http://sourceforge.net/projects/re2c Copy the magic file of Apache (usually in /etc/apache2) into the following directory: /usr/locale/share/file/ or /usr/share/file/ Then you have to install "libmagic-dev". If you have Debian based system you can simply install it with apt. But if you have an rpm based system (like me), you have to download the following package: http://packages.debian.org/unstable/libdevel/libmagic-dev It contains the files we need. So, download the file, browse it with Midnight Commander (mc) (you have to apt and dpkg be installed) and simply extract (so copy) the /usr folder (it is inside the CONTENTS folder) of the .deb package to the root folder. And now give the "pear install pecl/fileinfo" command another try :) Ps: Don't forget to check whether the script has wrote the following line into the php.ini (on openSUSE: /etc/php5/apache2): extension=fileinfo.so I hope, I could help. johny
Here is a mistake: No: ---- pear install fileinfo ---- but ---- pecl install fileinfo ---- jausions
For Windows users: 1. Go to http://pecl4win.php.net/ to get the php_fileinfo.dll if your PHP installation didn't come with it, and you haven't installed the Extensions package. 2. Then make sure you have extension=php_fileinfo.dll somewhere in your php.ini 3. Restart your web server. mwwaygoo
Be careful of using system("file -i -b file.pdf"); I got some strange results as follows:- 1. <?php $type=system("file -i -b mime.php"); echo $type; ?> text/plain; charset=us-ascii text/plain; charset=us-ascii 2. <?php $type=system("file -i -b mime.php"); echo $type."<br/>\n"; $split=split(";",$type); print_r($split); $type=trim($split[0]); echo $type; ?> text/plain; charset=us-ascii text/plain; charset=us-ascii<br/> Array ( [0] => text/plain [1] => charset=us-ascii ) text/plain 3. <?php $type=@system("file -i -b mime.php"); //echo $type."<br/>\n"; // just comment this line $split=split(";",$type); print_r($split); $type=trim($split[0]); echo $type; ?> text/x-c++; charset=us-ascii Array ( [0] => text/x-c++ [1] => charset=us-ascii ) text/x-c++ hari_1983
Actually for RPM users file-devel contains whatever libmagic contains. then apart from pear, u can directly use "pecl install Fileinfo".
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