Re: PHP 4.0 Bug #8017: PHP ignores "If-Modified-Since" headers

Hi Jordan, >Again, I still think PHP should automatically handle If-Modified-Since >itself, by sending back a 304 response code and no content if the PHP script >sends out a Modified header which is less than or equal to >If-Modified-Since. As I've said, CGI scripts written in non-web languages >such as Perl or sh do this automatically (i.e. with *no* special coding at >all), so IMHO it only stands to reason that a high-level language like PHP >should too. > How can the PHP engine determine wheter or not the content of a script has changed ? The script can contain data from a database or any other source. This information can only come from the script. The client sends a header with information on last modified the php engine can only compare this to the file date of the script but that will not be valid if the data in the database has changed. I would say the same goes for shell scripts. How would the server or the script know about changes in the conten if it was not checked by the script ? - Frank