GeoPHP geosInstalled returns false
问题 I have installed OSGeo4W on my 64-bit windows. I am trying to use GEOS functions in GeoPHP, but when I call geoPHP::geosInstalled , it returns me false . This is how I included the libraries: <?php echo "Going to load libraries...\n"; include_once("C:\\Users\\ZiZi\\Desktop\\GEOPHP\\Libs\\geoPHP-master\\geoPHP.inc"); var_dump(geoPHP::geosInstalled()); The output is: bool(false) I have installed oSGeo4W which is said here to be containing GEOS . It is installed in C:\OSGeo4W64 and I have put C: