This is a simple and quick expansion of avoiding SQL injection.

It is important to remember that characters such as any input from a user could contain potentially dangerous characters such as “#”, “%”, or ” “.  It is important these characters are sanitized otherwise they could be used to create a malicious attack on a mySQL database.

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This is a very quick tip for showing your server, configuration and PHP settings.

A description from PHP.net

Outputs a large amount of information about the current state of PHP. This includes information about PHP compilation options and extensions, the PHP version, server information and environment (if compiled as a module), the PHP environment, OS version information, paths, master and local values of configuration options, HTTP headers, and the PHP License.

Because every system is setup differently, phpinfo() is commonly used to check configuration settings and for available predefined variables on a given system.

phpinfo() is also a valuable debugging tool as it contains all EGPCS (Environment, GET, POST, Cookie, Server) data.

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This post is about the different type of white space characters that you should expect when programming.

There are different ways of representing white space characters depending on a few factors.  However, here is a quick list of the variations:

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Use this tool to check for broken and dead links on a webpage.
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Use this tool to view and compare alexa ranking graphs.
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