Ersin Acar

There are several methods get a file extension using PHP:

<?
$filename = 'myfile.jpg';
 
// 1. The "explode/end" method
$ext = end(explode('.', $filename));
 
// 2. The "strrchr" method
$ext = substr(strrchr($filename, '.'), 1);
 
// 3. The "strrpos" method
$ext = substr($filename, strrpos($filename, '.') + 1);
 
// 4. The "preg_replace" method
$ext = preg_replace('/^.*\.([^.]+)$/D', '$1', $filename);
 
// 5. The "never use this" method
//   From: http://php.about.com/od/finishedphp1/qt/file_ext_PHP.htm
$exts = split("[/\\.]", $filename);
$n = count($exts)-1;
$ext = $exts[$n];
?>

High quality free Wordpress Themes have become harder and harder to find in the past year, with the influx of premium themes, more and more designers and developers are selling themes (and rightly so, they do amazing work). But, that aside, the quality is certainly there, and we are sure you will be impressed with this Wordpress theme compilation for 2009.

1 – Blog & Portfolio Themes(1-35)

2 – Magazine & Corporate Themes(36-57)

3 – Photo blogs & Gallery Themes(58-68)

4 – Minimal & Clean Themes Themes(69-84)

5 – Smashing Magazine Themes(85-98)

6 – Something different… (99-104)

Blog & Portfolio Themes

One Room [Demo]

Elegant Grunge [Demo]

Fusion [Demo] Read the rest of this entry »

Debian uses a Sys-V like init system for executing commands when the system runlevel changes – for example at bootup and shutdown time.

If you wish to add a new service to start when the machine boots you should add the script to the directory /etc/init.d/. Many of the scripts already present in that directory will give you an example of the kind of things that you can do.

Here’s a very simple script which is divided into two parts, code which always runs, and code which runs when called with “start” or “stop”. Read the rest of this entry »

I spend a lot of time lurking in the channel # PHP (EFnet and freenode, please – no flame wars) and this issue is a frequently asked that the rule is a simple answer in the form of the use of strpos (), or best to ip2long () in a more than less than reply.

Unfortunately, although the people in the rule that an IP address is just an unsigned 32-bit integer, and is easy to determine, usually with $ _SERVER [ "REMOTE_ADDR"], where the real challenge – is in defining the range within which it must decide whether the IP address. IP ranges are usually divided into three categories (in increasing complexity):

1. Wild Card: 192.168.10 .*
2. Start-end: 10.1.0.0-10.1.255.255
3. * CIDR: 172.16.1.0/24

* Classless Inter-Domain Routing
Read the rest of this entry »

Here is the way of quick sort in associative arrays;

<? 
 
function qsort($a,$f) { 
       qsort_do(&$a,0,Count($a)-1,$f); 
} 
 
function qsort_do($a,$l,$r,$f) { 
       if ($l < $r) { 
               qsort_partition(&$a,$l,$r,&$lp,&$rp,$f); 
               qsort_do(&$a,$l,$lp,$f); 
               qsort_do(&$a,$rp,$r,$f); 
       } 
} 
 
function qsort_partition($a,$l,$r,$lp,$rp,$f) { 
       $i = $l+1; 
       $j = $l+1; 
 
       while ($j <= $r) { 
               if ($f($a[$j],$a[$l])) { 
                       $tmp = $a[$j]; 
                       $a[$j] = $a[$i]; 
                       $a[$i] = $tmp; 
                       $i++; 
               } 
               $j++; 
       } 
 
       $x = $a[$l]; 
       $a[$l] = $a[$i-1]; 
       $a[$i-1] = $x; 
 
       $lp = $i - 2; 
       $rp = $i; 
} 
 
?>

Here is the list of 43 short tips you can use for writing an optimized and more efficient PHP code:

1. If a method can be static, declare it static. Speed improvement is by a factor of 4.
2. echo is faster than print.
3. Use echo’s multiple parameters instead of string concatenation.
4. Set the maxvalue for your for-loops before and not in the loop.
5. Unset your variables to free memory, especially large arrays.
6. Avoid magic like __get, __set, __autoload
7. require_once() is expensive Read the rest of this entry »

I’m working on a security and trying to make searches in a multi-dimensional array
Here is the function;

<?php
function multi_array_search($needle, $haystack, $key, &$result, $searchlevel = 0) { 
  while(is_array($haystack) && isset($haystack[key($haystack)])) {
    if($searchlevel == 0 && key($haystack) == $key && $haystack[$key] == $needle) {
      $result = $haystack;
    } elseif($searchlevel > 0) {
      multi_array_search($needle, $haystack[key($haystack)], $key, $result, $searchlevel - 1);
    }
    next($haystack);
  }
}
?>

Example;
2-dimensional array, search by both key and value
$arr1 = array(
1 => array(‘id’ => 1, ‘name’ => ‘Ersin’, ‘gender’ => ‘male’),
…
12 => array(‘id’ => 12, ‘name’ => ‘Emel’, ‘gender’ => ‘female’),
);

<?php array_search_in_level('Emel', $arr1, 'name', $result, 1); ?>

$result is:
array(
‘id’ => int 12
‘name’ => string ‘Emel’ (length=4)
‘gender’ => string ‘female’ (length=4)
)

I made a quick list for Free CSS theme sites.
Here is the list;

http://www.freecsstemplates.org/css-templates/

http://www.free-css-templates.com/

http://www.freecsstemplates.org/

http://csscreme.com/freecsstemplates/

http://www.templatemo.com/

http://www.solucija.com/free-templates

Introduction

The following HOWTO will show you exactly how to install the following packages on a Debian Etch or Ubuntu 7.06 system:

• FFmpeg
• FFmpeg-PHP
• Mplayer + Mencoder
• flv2tool
• LAME MP3 Encoder
• AMR (for 3gp file conversions)
• Libogg
• Libvorbis

Read the rest of this entry »

Hi,
İf you want to change debian’s system language you must follow these steps;

sudo apt-get update
sudo apt-get install debconf
sudo dpkg-reconfigure locales

Or you could add something like the following lines to /etc/environment

LANG=”en_US.UTF-8″
LANGUAGE=”en_US:en”

If you want different locales for different users, you can add that to their
.bashrc files

Here’s some links that touch on what you’re looking for:

http://gallery.menalto.com/wiki/Debian_locale_HowTo

http://melkor.dnp.fmph.uniba.sk/~garabik/debian-utf8/howto.html