Regular expressions Regular expressions are used to parse strings, basically to find and replace bits of text. While this may seem trivial, the versatility of regex makes it quite powerful. There are a wide variety of methods for optimizing a regex string, which can mean huge performance differences for your app. They are also great for Apache rewrites.
So, for example, a user may ask for http: Of course, the user will be none the wiser to this little bit of chicanery. Any directives which you place in it will apply to the directory which the.
RewriteRules are broken up as follows: RewriteRule This is just the name of the command.
A special substitution is. This substitution tells Apache to not perform any substitution. I personally find that this is useful when using the F or G flags see belowbut there are other uses as well.
Any flags which you use should be surrounded in square brackets, and comma separated.
The flags which I find to be most useful are: The user will receive a error. L - Last Rule. No more rules will be proccessed if this one was successful. If you use this flag, you must prefix the substitution with http: If no code is given, then a HTTP reponse of temporarily moved is sent.
Suppose you have a web page which takes a parameter. This parameter tells the page how to be displayed, and what content to pull into it. Both sets of people seem to much prefer a straight URL, with no extra bits tacked onto the end. So, a link like index.
The following is what needs to go into your. Whatever is found here will be captured and remembered. If anything else is found, then this RewriteRule will be ignored. The following test script will simply echo the name of the page you asked for to the screen, so that you can check that the RewriteRule is working.
If you put the page in http: The URL in your browser window will show the name of the page which you requested, but the content of the page will be created by the index. So, how is this done? All it takes are a couple of RewriteCond statements in your. RewriteCond statements are as they sound - conditional statements for RewriteRules.
If the test string is neither empty nor our own server, then we will serve an alternative low bandwidth image, which tells the person who is hotlinking off for stealing our bandwidth.
So, any requests for gif, jpg or png files from referers other than somesite. If you enjoyed reading this and would like other people to read it as well, please add it to del.
If you really enjoyed what you just read, why not buy yourself something from Amazon? You get something nice for yourself, and I get a little bit of commission to pay for servers and the like.Many servers support a technique called URL rewriting, which allows you to hide the caninariojana.com portion of the URL behind the scenes.
Requirements ¶ UNIX-based hosting. CodeIgniter URLs¶. By default, URLs in CodeIgniter are designed to be search-engine and human friendly. Rather than using the standard “query string” approach to URLs that is synonymous with dynamic systems, CodeIgniter uses a segment-based approach.
Is your Apache htaccess not working? Here are the top reasons why an htaccess file may not work, and how get your htaccess working. Htaccess Problem #1: No Dot Before the Filename caninariojana.comss file's filename must start with a dot, like caninariojana.comss Files and directory names starting with a .
says the B flag is unknown. I'm running and added the B flag. I do have full access to the server (not shared hosting) so I can do whatever I need to do to apache.
A rewrite engine is a software component that performs rewriting on Uniform Resource Locators, modifying their caninariojana.com modification is called URL caninariojana.com is a way of implementing URL mapping or routing within a web caninariojana.com engine is typically a component of a web server or web application caninariojana.comten URLs (sometimes known as short, pretty or fancy URLs, search.
The pattern first matches any number of possible METHODS (GET, POST, HEAD, etc), then it creates a grouping of the URI path that's before the caninariojana.com, then ends the matching, since we don't really care what's after the caninariojana.com