🔌 WordPress Engineering• Published: September 2, 2026

Geo-Location & Proximity Search: Integrating Google Maps & Leaflet with WordPress

Engineering Review: WordPress Core & Protocol Directorate • LinksConnect

Local directory users frequently search within specific mileage radiuses. Calculating spatial distances directly via optimized Haversine queries delivers fast proximity results.

1. The Haversine Spatial Query Formula

📐 Haversine Distance Query (Miles)

SELECT post_id, (
  3959 * acos(
    cos(radians(user_lat)) * cos(radians(dest_lat)) *
    cos(radians(dest_lng) - radians(user_lng)) +
    sin(radians(user_lat)) * sin(radians(dest_lat))
  )
) AS distance
FROM wp_directory_locations
HAVING distance < 25
ORDER BY distance ASC;

💻

Authored by LinksConnect WordPress Engineering Directorate

Our open-source team builds high-performance directory architectures, develops custom post type taxonomies, and designs reciprocal link validation protocols for WordPress.