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Better, Faster, Stronger gethostbyaddr

Stopping WordPress Exploits and Spam

Secure WP Super Cache, Anti-exploits, Mitigation techniques. A bunch of current ways to stop wordpress exploits and spam. block the most common wordpress exploits

PHP fsockopen for FAST DNS lookups over UDP

While reading up on gethostbyaddr on, I saw a nice idea for using fsockopen to connect over UDP port 53 to any Public DNS server, like Google DNS, and sending the reverse addr lookup in oh about 100 bytes, then getting the response in oh about 150 bytes! All in less than a second. This is how/why to read/write data directly to the wire! This would be extremely valuable for use in things like my online header tool because it's faster than any other method. As usual, I went a bit overboard optimizing it to be lean and fast.

Fsockopen Magic

Fsockopen PowerPHP's fsockopen function lets you open an Internet or Unix domain socket connection for connecting to a resource, and is one of the most powerful functions available in the php language.

Get Number of Running Proccesses with PHP

Apache Httpd Number ProcessesRecently I had to setup a script to curl 10k urls, but it could only do 500 requests at any one time. In order to work under that limit, I created a function that returns the number of currently running processes on the machine in an extremely fast and efficient way, thus allowing the curl_multi requests to queu themselves such as GNU xargs.

Getting the Mimetype of an Image with PHP

This is awesome. I was so fed up with trying to find a fail-proof, cross-platform way to find the mime type of an image using PHP that I wrote a quick function that utilizes the same technology as the exif_imagetype, getimagesize, and finfo functions do. Ahh the joys of low-level.

Using PHP shorthand and short_open_tag

Using PHP shorthand and short_open_tagI hope this will pursuade you to stop using PHP short_open_tag syntax.

<?= or <?

PHP to handle HTTP Status Codes for ErrorDocument

Fast, HTTP Protocol, protection. If you are reading this article, you already know enough about the benefits of making sure your site can handle HTTP Protocol Errors. This is a nice single php file with no dependencies or requirements, will work on anything. Optimized for minimizing bandwidth and resource-hogging connections from bots and spambots.

@ini_set('memory_limit', '64M');
@ini_set('display_errors', 'Off');

Creating an Offline Version of Page

I can do anythingSo, here's what I hacked together last night, that is being used today. It's essentially 2 files.

  1. A php file that scrapes uses curl to scrape all the urls for the page (favicon, css, images, pdfs, etc..)
  2. A simple bash shell script acting as a cgi that creates a zip file of all the urls, and a self-extracting exe file for those without a winzip tool

PHP Session File Hacks

What they say about kung-fu is true..

It can be attained by anyone through hard work over time. You can become as good as the amount of work you put in. Here's a short look at a basic technique that I use. Simply reverse engineering the source code and taking notes along the way...

static void php_session_send_cookie(TSRMLS_D)
  if (SG(headers_sent)) {
          if (output_start_filename) {
                  php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot send session cookie - headers already sent by (output started at %s:%d)",
                          output_start_filename, output_start_lineno);
          } else {
                  php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot send session cookie - headers already sent");

  /* URL encode session_name and id because they might be user supplied */
  e_session_name = php_url_encode(PS(session_name), strlen(PS(session_name)), NULL);

Download Multiple URL’s FAST with cURL

PHP File Uploads

Adding Akismet Anti-Spam Protection Anywhere

Wouldn't you love to have Akismet Anti-spam protection for non-wordpress forms and pages?

PHP Sessions/Cookies On The Fly

Multiple Web Technologies for dynamic php session controlThis article shows how to save and modify php session data, cookies, do anything really... without using ajax or iframes or forcing the user make a request.

Faster Form Submission and Processing with fsockopen

Speedy Forms using background-requestsPart II: Example illustrating how to speed up GET/POST form submissions. Uses fsockopen to initiate a server-side background request to process the submitted data, so that the result page of the form is displayed to the client lightningly quick.

Faster POST and GET Form Submissions… Shazam

Snoopy Fsockopen HTTP Class for PHPJust a very brief look at speeding up form submission by delegating the processing and bandwidth to your server, not your client.

Simple PHP Anti-Spam Captcha Script

Anti-Spam PHP Captcha ExamplePrevent automated web robot tools and spammers from taking advantage of your site with this simple php script that I hacked up earlier today to use on my Advanced HTTP Header Viewer.

The Latest and Greatest php.ini

Grab the latest php.ini developmental version and discover new or previously hidden php runtime configuration settings... ahead of everyone else!

Downloading Multiple Files with Curl Simultaneously

Wouldn't it be great if you could use php and curl to download multiple files simultaneously using built-in curl functions? You can!

PHP htaccess tips and tricks

Htaccess php tips and tricks for the Apache HTTPD Web Server, mostly these tips show you how to run customized versions with customized php.ini files, I require custom php.ini files because they are so useful!

Information is freedom. Freedom is non-negotiable. So please feel free to modify, copy, republish, sell, or use anything on this site in any way at any time ;)

My Online Tools

Popular Articles
Hacking and Hackers

The use of "hacker" to mean "security breaker" is a confusion on the part of the mass media. We hackers refuse to recognize that meaning, and continue using the word to mean someone who loves to program, someone who enjoys playful cleverness, or the combination of the two.
-- Richard M. Stallman

Live Free or Die

The power of the Web is in its universality. Access by everyone regardless of disability is an essential aspect. -Tim Berners-Lee


It's very simple - you read the protocol and write the code. -Bill Joy


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