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Basically my question is:

Can I combine the functions of proj4 with php in my server?

For example, I would like to know if it is possible get data in WGS84 and transform in ETRS89.

I need to get WGS84 data with php, then use proj4 to transform them to ETRS89 and finally use them in php.

If the answer is right, how can I configure php and proj4 to work together???

Thanks!!!

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are you on a shared server, our can you install php extensions? if you can, then adding GEOS (google) and using geo-php (search github) would do It. –  deroses Jun 1 at 12:01
    
Are you sure? Geos manage spatial operations and not projections at all. –  ThomasG77 2 days ago

1 Answer 1

If you use geoserver you can configure it to do transformations from source. Also WGS84 is practically same as ETRS89 (<1m) (You need to know when it's measured to do more accurate transformations) So you can probably play dump and just assume that they are same.

Have you considered PostGIS -> Geoserver -> PHP app stack? In that configurationyou would have PostGIS and Geoserver which both are capable to transform data.

Something like load data into PostGIS , do st_Transform , use geoserver view to server WFS or WMS layer. Or you could just use PostGIS + (SQL) from PHP, where PostGIS does all hard GIS functions and php only stores/vies data from database.

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