esri.arcgis.Config.proxyUrl=/path/to/proxy_page
For PHP, unzip the file into the Web applications directory. For Apache installs of PHP, this would be a folder under "htdocs" in the Apache install location. For IIS installs, this would be a folder under "wwwroot".
For PHP, unzip the file into the Web applications directory. For Apache installs of PHP, this would be a folder under "htdocs" in the Apache install location. For IIS installs, this would be a folder under "wwwroot".