What is PHP, Perl, CGI-BIN?
PHP and Perl are both scripting (programming) languages that are used to create web sites with dynamic behavior. Examples of dynamic behavior include writing data to databases, processing credit cards in real-time, and running interactive news and chat web sites. CGI is an acronym for the Common Gateway Interface, and is an older style of programming integration for web servers. CGI programs can be compiled executables or Perl scripts, for example, can be used to create CGI programs, which must reside in a CGI-BIN directory.