100% fool-proof (as far as I can tell). Prevent hotlinking to files not supported by .htaccess. For instance, I use this method to prevent people from linking to *.SWF files stored on my server.
Platform(s): Linux, Windows, FreeBSD, Mac OSX, Sun Solaris
Critical Information and about procurement Software and the Free GPL developemtn "e-procurement implementation". Procurement Software is critical to freeing companies from massive paper based purchasing.
This demo shows how to use the regular expression support in PHP. These functions allow you to perform regular expression operations on strings. The regular expression language used is compatible with the extended regular expression syntax as specified in the egrep man page on most Unix systems.
If you use a form on your site then you'll know that user input can often have white space before or after the text as the person filling in the form field sometimes accidentally adds spaces. This handy function will remove the whitespace from the beginning or end of the string.
Shows you how to take a number like 0.0000000000000000000000000000000000000000000000000000001 and round it to 1, with CEIL you would get a buffer overrun error.
Search engine Web spiders, however, tend to ignore pages whose URL contains GET method parameters. This article explains how to use your Web server to pass parameters to PHP scripts so that it fools search engines, and allows your page to be indexed when it would otherwise be ignored.
Friendly URL's are a very important thing to have when developing a dymanic content site that uses long query strings. A query string is something similiar to a URL like you'll see on Ebay, Google and other big sites. If you're running a small to medium size website and you want to make your URL's a little easier to find you can do so via Apache's mod_rewrite by following this tutorial.
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