Command Center

rpm -qa | grep php | xargs rpm -e --nodeps

rpm -qa | grep php | grep -v psa | xargs rpm -e --nodeps

rpm -qa | grep php

rpm -qa | grep php | grep -v psa  

yum install php53* php53-*

wget http://downloads2.ioncube.com/loader_downloads/ioncube_loaders_lin_x86.tar.gz && cd ioncube && cp ioncube_loader_lin_5.3.so /usr/lib/php/modules/

echo “zend_extension=/usr/lib/php/modules//ioncube_loader_lin_5.3.so” > /etc/php.d/ioncube-loader.ini

wget http://downloads2.ioncube.com/loader_downloads/ioncube_loaders_lin_x86-64.tar.gz && tar -zxf ioncube_loaders_lin_x86-64.tar.gz && cd ioncube && cp ioncube_loader_lin_5.3.so /usr/lib64/php/modules/

echo “zend_extension=/usr/lib64/php/modules//ioncube_loader_lin_5.3.so” > /etc/php.d/ioncube-loader.ini

yum install rpm-build

nano -w php.spec

Summary: Empty PHP required as Plesk doesent recognise the PHP53 packages.
Name: php
Version: 5
Release: 3.3
License: Public
Group: Applications/System
%description
Empty PHP RPM
%files

rpmbuild -bb php.spec

rpm -i /path/to/rpm

nano -w /etc/yum.conf

exclude=php

service httpd restart

php -v

<?php
// Usage: Download 
// Path to downloadable files (will not be revealed to users so they will never know your file's real address) 
$hiddenPath = "secretfiles/"; 

// VARIABLES 
if (!empty($_GET['file'])){ 
$file = str_replace('%20', ' ', $_GET['file']); 
$category = (!empty($_GET['category'])) ? $_GET['category'] . '/' : ''; 
} 
$file_real = $hiddenPath . $category . $file; 
$ip = $_SERVER['REMOTE_ADDR']; 

// Check to see if the download script was called 
if (basename($_SERVER['PHP_SELF']) == 'download.php'){ 
if ($_SERVER['QUERY_STRING'] != null){ 
// HACK ATTEMPT CHECK 
// Make sure the request isn't escaping to another directory 
//if (substr($file, 0, 1) == '.' ¦¦ strpos($file, '..') > 0 ¦¦ substr($file, 0, 1) == '/' ¦¦ strpos($file, '/') > 0)  { 
if ((substr($file, 0, 1) == '.') || (strpos($file, '..') > 0) || (substr($file, 0, 1) == '/') || (strpos($file, '/') > 0)) 
{ 

// Display hack attempt error 
echo("Hack attempt detected!"); 
die(); 
} 
// If requested file exists 
if (file_exists($file_real)){ 
// Get extension of requested file 
$extension = strtolower(substr(strrchr($file, "."), 1)); 
// Determine correct MIME type 
switch($extension){ 
case "png": $type = "video/x-ms-asf"; break; 
case "avi": $type = "video/x-msvideo"; break; 
case "jpg": $type = "application/octet-stream"; break; 
case "jpeg": $type = "video/quicktime"; break; 
case "mp3": $type = "audio/mpeg"; break; 
case "mpg": $type = "video/mpeg"; break; 
case "gif": $type = "video/mpeg"; break; 
case "rar": $type = "encoding/x-compress"; break; 
case "txt": $type = "text/plain"; break; 
case "wav": $type = "audio/wav"; break; 
case "pdf": $type = "text/plain"; break; 
case "doc": $type = "audio/wav"; break; 
case "jpeg": $type = "text/plain"; break; 
case "bmp": $type = "audio/wav"; break; 
case "wma": $type = "audio/x-ms-wma"; break; 
case "wmv": $type = "video/x-ms-wmv"; break; 
case "zip": $type = "application/x-zip-compressed"; break; 
default: $type = "application/force-download"; break; 
} 
// Fix IE bug [0] 
$header_file = (strstr($_SERVER['HTTP_USER_AGENT'], 'MSIE')) ? preg_replace('/\./', '%2e', $file, substr_count($file, '.') - 1) : $file; 
// Prepare headers 
header("Pragma: public"); 
header("Expires: 0"); 
header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); 
header("Cache-Control: public", false); 
header("Content-Description: File Transfer"); 
header("Content-Type: " . $type); 
header("Accept-Ranges: bytes"); 
header("Content-Disposition: attachment; filename=\"" . $header_file . "\";"); 
header("Content-Transfer-Encoding: binary"); 
header("Content-Length: " . filesize($file_real)); 
// Send file for download 
if ($stream = fopen($file_real, 'rb')){ 
while(!feof($stream) && connection_status() == 0){ 
//reset time limit for big files 
set_time_limit(0); 
print(fread($stream,1024*8)); 
flush(); 
} 
fclose($stream); 
} 
}else{ 
// Requested file does not exist (File not found) 
echo("Requested file does not exist"); 
die(); 
} 
} 
} 
?>

<?php
$path = '/home/someuser/products/data.tar.gz'; // the file made available for download via this PHP file
$mm_type="application/octet-stream"; // modify accordingly to the file type of $path, but in most cases no need to do so

header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Type: " . $mm_type);
header("Content-Length: " .(string)(filesize($path)) );
header('Content-Disposition: attachment; filename="'.basename($path).'"');
header("Content-Transfer-Encoding: binary\n");

readfile($path); // outputs the content of the file

exit();

Top 10 Free and Open Source Ecommerce Solutions

Drupal is one of two most popular content management systems (CMS) written in PHP . It is used as a back-end system for at least 1.5% of all websites worldwide. It is also one with the the slowest systems of this kind on the Internet

Introduction

• as a standard PHP script
• as a PHP script with APC opcode caching enabled
• in the form of a compiled program

Testing platform

Test Configuration

cd ~drupal
date && ~/hiphop/hiphop-php/src/hphp/hphp  --keep-tempdir=1\
 --log=3\
 --input-list=files.full.list\
 --include-path="." --force=1\
 --cluster-count=240\
 -v "AllDynamic=true"\
 -v "AllVolatile=true"\
 -o /tmp/drupal\
 --parse-on-demand=0\
 --sync-dir=/tmp/sync

cd ~drupal
/tmp/drupal/program -m server -p 80\
 -v "Server.SourceRoot=`pwd`"\
 -v "Server.DefaultDocument=index.php"\
 -c $HPHP_HOME/bin/mime.hdf\
 -v "Log.File=/tmp/errors"\
 -v "ErrorHandling.AssertActive=true"\
 -v "ErrorHandling.AssertWarning=true"\
 -v "ErrorHandling.WarningFrequency=10000"\
 -v "ErrorHandling.NoticeFrequency=10000" &

CPU usage

ab -n 300 -c 4 http://achilles.webtutor/

sy = system CPU usage (gradient color), us = user CPU usage (solid color)

Drupal performance improved dramatically. The test was completed in 6 seconds, 3 times faster than with traditional PHP! Due to the size of Drupal code, however, this result is not shocking. While the APC module will not speed up the script itself, its opcode cache eliminates the delay caused by having to parse PHP code on every HTTP request.

Environment      Execution 
   Type        time [300 req]
-----------------------------
Regular PHP      19.873 sec
PHP + APC         6.396 sec
HipHop for PHP    3.896 sec

Concurrency benchmark

Other concurrency levels

Users    PHP     APC   HipHop 
-----------------------------
  1      8.68   28.11   40.23
  2     13.34   38.25   56.12
  4     15.28   46.82   74.12
  8     14.76   49.96   72.12
  16    14.04   49.09   74.12
  32    12.35   45.00   77.67
  64     5.22   39.17   73.02

Different optimization levels in GCC compiler

optimization    req/sec
    level
--------------------------
   default         74.12
     -o2           87.11
     -o3           90.04

Summary

Other articles about HipHop for PHP

• HipHop for PHP: benchmark
• Strong data typing in PHP, part II: autoboxing and indesctructible objects
• Drupal and HipHop for PHP – part I: compilation
• Mod_rewrite and HipHop for PHP on Apache Web Server
• http://php.webtutor.pl/en/2011/05/17/drupal-hiphop-for-php-vs-apc-benchmark/

Built-in Development Server

$ php -S localhost:1337

$ php -S localhost:1337 -t /path/to/docroot

// If we're using the built-in server, route resources
if (php_sapi_name() == 'cli-server') {
  /*
   * If the request is for one of these image types, return false.
   * It will serve up the requested file.
   */
  if (preg_match('/\.(?:png|jpg|jpeg|gif)$/', $_SERVER["REQUEST_URI"]))
    return false;
}
// Process the rest of your script

An Overview of Traits

name().", run!\n";
  }
  // Gets the name of the runner
  // Must be implemented by the class using the trait.
  abstract public function name();
}
/**
 * Define a class that uses the runner trait
 */
class runningPerson {
  // Use the runner trait
  use runner;
  // Used to store the person's name
  protected $name; // Constructor, assigns a name to the person
  public function __construct($name) {
    $this->name = $name;
  }
  // Retrieves the name of the person, required by runner trait
  public function name() {
    return $this->name;
  }
}
$gump = new runningPerson("Forrest");
$gump->run();

do_something();
$testB->do_something();
$testB->something_else();

Changes to Anonymous Functions

$functions = array();
// assign an anonymous function to an array element
$functions['anonymous'] = function () {
  echo "Hello, the parser needs to make up a name for me...\n";
};
// to call it you had to do this:
$temp = $functions['anonymous'];
$temp();

// assume $functions[] is still around.
$functions['anonymous']();

Closures in Classes

value = $value;
  }

  public function getValue() {
    return $this->value;
  }

  public function getCallback() {
    return function() {
      return $this->getValue();
    };
  }
}

/**
 * Create a class that calls a closure.
 */
class ClosureCaller {
  private $callback;

  public function setCallback($callback) {
    $this->callback = $callback;
  }

  public function doSomething() {
    // Since this is a member variable, call Closure::__invoke().
    echo $this->callback->__invoke() . "\n";
  }
}

// Set up a class to generate closures that reference itself
$test = new ClosureTest();
$test->setValue(42);
$closure = $test->getCallback();
echo $closure() . "\n";

// Test calling a closure from another class
$testCaller = new ClosureCaller();
$testCaller->setCallback($test->getCallback());
$testCaller->doSomething();

Outlook