spechal.com » PHP

Installing php-ffmpeg on CentOS 5.x

Spechal — Mon, 25 Jul 2011 16:24:58 +0000

This can be a pain due to a bug in the ffpmeg_frame.c file … here are the commands to get up and going

yum -y install ffmpeg ffmpeg-devel
wget http://sourceforge.net/projects/ffmpeg-php/files/ffmpeg-php/0.6.0/ffmpeg-php-0.6.0.tbz2/download
tar jxvf ffmpeg-php-0.6.0.tbz2
sed -i 's/PIX_FMT_RGBA32/PIX_FMT_RGBA/g' ffmpeg-php-0.6.0/ffmpeg_frame.c
cd ffmpeg-php-0.6.0 && phpize
./configure && make && make install
echo 'extension=ffmpeg.so' > /etc/php.d/ffmpeg.ini && /etc/init.d/httpd restart
php -v && php -m | grep ffmpeg

In this process you:
use yum to install ffmpeg and the ffmpeg development files
download php-ffmepg from sourceforge and extract it
apply the bug fix to the ffmpeg_frace.c file
change directories to the php-ffmpeg directory and phpize the module
configure, make and install the shared object (extension)
add the extension to the loaded php extensions
restart apache and verify no errors are shown on php startup and that ffmepg is loaded

If all is well, you should see your version of PHP with the copyrights on 3 lines and the last line showing ffmpeg

Sharpy Lite PHP RAD Framework

Spechal — Thu, 24 Mar 2011 06:01:02 +0000

So here is part of the Sharpy framework I have been developing with. Once I get things more mature, I will release the whole php rapid application development framework.

Download sharpy-lite. Published under the MIT License.

Basically just upload the content to your web server (renaming public_html if needed) and browse to the site. PHP 5.3.x is required.

I will write up more detailed information upon request, but to get going …

To create a new module, copy the index module and rename it to whatever you want, without meta characters. Hyphens are acceptable.

jQuery wdCalendar Plugin: Adding double click action

Spechal — Wed, 09 Mar 2011 07:28:22 +0000

You can add a double click by altering the event DIV in jquery.calendar.js

i.e.

var __SCOLLEVENTTEMP = "${data}
 
${starttime} - ${endtime} ${icon}
${content}
 
 
 
";

jQuery wdCalendar Plugin: Expected ajax return

Spechal — Wed, 09 Mar 2011 00:56:42 +0000

This plugin isn’t documented very well, so I figured I would post the bits and pieces I had issues with and hopefully help someone out.

First thing I needed to do was move all the functions into a class and refactor them, but first I wanted the data to still load in the calendar.

The data expected to be returned from the page listing the events is not defined on the wdCalendar project page, so here it is … in PHP.



$ret = array('events' => NULL);
$ret['events'][] = array('123456', // cal id
			  'Title', // event title
			  date('m/d/Y H:i', 
                                 strtotime('March 8 2011 12:00:00')), //start
			  date('m/d/Y H:i', 
                                 strtotime('March 8 2011 16:00:00')), // end
			  0, // all day event
			  0, // more than one day
			  0, // recurring
			  0, // color
			  1, // draggable
			  1, // editabble
			  'Address', // address
			  0 // mark as attending
			);
echo json_encode($ret);

Even More Sharpy

Spechal — Fri, 24 Dec 2010 11:51:25 +0000

I am adding a basic Blog app to the base of Sharpy to exemplify how to code using Sharpy … of course, it is just an example. I fixed a few bugs in DataMapper and made one to one and one to many relationships easier by adding an ID property to DataMapper and including it in the SQL generator bit of DataMapper. More to come.

More Sharpy

Spechal — Sat, 18 Dec 2010 08:54:34 +0000

Since the last post I’ve added basic database support for MySQL and PostgreSQL. In addition is a basic ACL and a DataMapper class to build models from. I just finished up adding in the ability to execute methods before and after any action by using before_filter and after_filter.

Things are moving along. Hopefully there will be something useful in the near future.

Sharpy

Spechal — Thu, 16 Dec 2010 01:26:51 +0000

So I decided to start working on a rapid application development (RAD) framework for PHP the other day after a brief stint with Ruby on Rails. I’ve decided to call the framework Sharpy. The code is hosted by Google Code and can be found at http://code.google.com/p/sharpy/

I still need to add a database handler, internationalization, [lots more...] and refine the code comitted thus far, but it is a functional and small PHP MVC framework that supports templates.

Hopefully someone out there will find it useful.

Generate and validate UUID / GUID with PHP

Spechal — Mon, 18 Oct 2010 07:24:56 +0000

    function UUID(){
    	return sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
        mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff),
        mt_rand(0, 0x0fff) | 0x4000,
        mt_rand(0, 0x3fff) | 0x8000,
        mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff));
    }

    function validUUID($uuid){
    	return preg_match("#^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$#", $uuid);
    }

phpize not found

Spechal — Sun, 06 Dec 2009 02:12:57 +0000

This error is typically generated when you don’t have the PHP development libraries installed.

Installing the libraries via repository is the easiest and quickest fix.

For Fedora/Red Hat:
yum install php5-dev

For Ubuntu/Debian:
apt-get install php5-dev

Python MySQL Associative Array

Spechal — Fri, 27 Nov 2009 23:26:04 +0000

By default, the MySQLdb module to access a MySQL database returns the data as an integer indexed array. Sometimes this is not desirable and an associative array is preferred, such as the mysql_fetch_assoc function in PHP. In addition, we will be using the pprint module which is similar PHP’s print_r

Here is the Python equivalent:

import MySQLdb
import pprint
# connect to the database here
db = MySQLdb.connect(...)
c = db.cursor(cursorclass=MySQLdb.cursors.DictCursor)
query = "SELECT `name`, `address` FROM `table`"
c.execute(query)
rows = c.fetchall()
c.close()
pprint.pprint(rows) # i.e. print_r($rows)

Hope that helps someone.