Скачать или смотреть How to Redirect and Change URLs using Apache .htaccess

A clear guide on how to redirect and change URLs with `Apache` `.htaccess`, making the process easy for web developers and site managers.
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This video is based on the question https://stackoverflow.com/q/64941685/ asked by the user 'PhilG' ( https://stackoverflow.com/u/2921944/ ) and on the answer https://stackoverflow.com/a/64953799/ provided by the user 'anubhava' ( https://stackoverflow.com/u/548225/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Redirecting and Changing URLs with Apache .htaccess

Redirecting URLs on a website can often seem daunting, especially when you want to perform more complex changes involving parameters and specific paths. If you're trying to redirect users from one format of a URL to another using Apache's .htaccess file, you're in the right place! In this post, we'll break down a solution to a common scenario: changing and redirecting web addresses for better organization and user experience.

The Problem

Imagine you have URLs that follow this structure:

[[See Video to Reveal this Text or Code Snippet]]

And you need to redirect this to:

[[See Video to Reveal this Text or Code Snippet]]

Key Details:

You want to preserve a portion of the URL while only changing parts of it.

The new domain should pull the "custom" string dynamically into the new address.

The parameters and segments following /b/ should remain intact in the redirect.

The Solution

To achieve this redirection effectively, you can use Apache's mod_rewrite feature through the .htaccess file. Below, we'll walk through a simple rule that accomplishes this.

Step 1: Enable Rewrite Engine

First, ensure that the rewrite engine is activated in your .htaccess file:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Add Rewrite Condition

Next, set a condition to check if the request is coming from the old subdomain:

[[See Video to Reveal this Text or Code Snippet]]

Explanation: This line checks if the host in the request matches xyz.lastdomain.com, case-insensitively.

Step 3: Create Rewrite Rule

Now, we can define the rule that redirects the requests to the new URL structure:

[[See Video to Reveal this Text or Code Snippet]]

Breakdown of the Rewrite Rule:

Pattern: ^b/([\w-]+ )/(.*)$

This captures anything that comes after /b/. ([\w-]+ ) captures the custom string, which can contain any word character or hyphen, and (.*) captures the rest of the URL.

Redirect URL: https://$1.nextdomain.com/b/$2

Here, $1 refers to the custom string captured, and $2 refers to the rest after /b/.

Flags:

[L]: Last rule - if this rule matches, stop processing more rules.

[NC]: No case - makes the rule case-insensitive.

[R=301,NE]: Redirect with a permanent status (301) and prevents special characters in the destination URL from being encoded.

Final Example Code

Putting it all together, your .htaccess file will look something like this:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By following these straightforward steps, you can efficiently redirect URLs from one format to another using Apache's .htaccess. This not only helps in maintaining proper URI structures but also enhances the user experience by guiding them to the correct locations on your website.

If you have any questions or need further clarification on any of these steps, feel free to comment below! Happy coding!