Re: [php] how to make 404's revert to homepage on a virtual server?

At 13:24 10.05.2003, scott said: --------------------[snip]-------------------- >I have a RaQ4 with about 40 virtual sites. I want to create a single php >script that will make any 404 errors on any of the virtual sites revert >to the respective sites homepage. Is this possible with one script >replacing one 404 error page on the raq. I have seen a few ways of doing >it with htaccess but don't want to have to do that to all the sites. Is >there a simple way to achieve what I require without having to upload >and do things to all the sites individually. --------------------[snip]-------------------- You need to setup some script as a handler for the 404. You can do this for all virtual sites by putting it in the apache main configuration. Let's assume you have a script that's located in the virtual web server's root, named "404.php". In your httpd.conf, you'd add the line ErrorDocument 404 /404.php On any 404 error, Apache would try to run this script, located in the virtual hosts docroot folder. There's only one thing that must be done on every site - the "404.php" must reside within the virtual server's document root. This can as well be a symbolic link, so you may want to put this line in the script that's configuring a new site: ln -s /<main_host_docroot>/404.php /<virtual_host_docroot>/404.php Failing to make this handler accessible results in a cascaded 404 error by Apache. Ok, what the handler can do: "404.php" is executed as any other PHP script, where the $_SERVER superglobal contains the following additional entries: - REDIRECT_STATUS The HTTP error number (always 404 in this example, but you could use the very same handler for different HTTP errors) - REDIRECT_URL The path that caused the error (e.g. "/blah/nada.php") - REDIRECT_REQUEST_METHOD GET , or POST, or whatever - REDIRECT_QUERY_STRING The URL query string, if any (everything after the question mark), in its original form (parm=value&parm=value) query=something - REDIRECT_ERROR_NOTES Human-readable explanation as given by Apache Your handler script may examine these and proceed as required. The usual $_SERVER entries apply; e.g. the hostname of the virtual server can always be found in $_SERVER['SERVER_NAME']. Hint: you can easily examine all entries by creating a script containing nothing but <?php echo phpinfo(); ?> and register this as Apache error handler. HTH, -- >O Ernest E. Vogelsinger (\) ICQ #13394035 ^ http://www.vogelsinger.at/