How Do I Get a Client\'s IP Address in Laravel 5 ?

How to Obtain Client IP Address in Laravel 5

In Laravel, retrieving a client's IP address can be an easy task. In core PHP, accessing the IP address is done through $_SERVER["REMOTE_ADDR"]. However, in Laravel, this may not accurately capture the visitor's IP.

Laravel's Approach

Laravel provides a dedicated method for obtaining the client's IP address:

<code class="php">Request::ip();</code>

This method internally utilizes the Symfony Request Object's getClientIps function to handle the IP address retrieval process.

How getClientIps Operates:

The getClientIps method follows a multi-step approach:

1. Trusted Proxy Validation: It checks if the request is coming from a trusted proxy based on the configured trusted IP ranges.
2. Header Parsing: Based on the trusted headers specified in the trustedHeaders configuration, it extracts IP addresses from the Forwarded or Client-IP headers.
3. IP Chain Creation: It forms a chain of IP addresses, including the request's original IP, the extracted headers, and the trusted proxies.
4. Untrusted Proxy Removal: Any IP addresses identified as trusted proxies are eliminated from the chain.
5. Client IP Retrieval: The first IP address in the untrusted proxy-filtered chain is identified as the client's IP address.
6. Port Removal: It removes any port information from the client IP address for consistency.

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