How to Get Public IP in PHP Using IPPubblico With No API Key Required

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A developer guide published on DEV Community explains how PHP applications can retrieve a server's public IP address without any external dependencies or API keys. The tutorial uses IPPubblico.org, a free service offering HTTPS endpoints that return both plain text and JSON responses. Beyond basic IP lookup, the service also provides geolocation data including country, city, ISP, and timezone, with localized name support in seven languages. The guide covers practical use cases such as building Laravel middleware for visitor country detection and integrating IP-based geolocation into WordPress without plugins. Caching strategies are also recommended to minimize repeated API calls and improve application performance.

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