you may see some of the most vernacular extensions on these URL :
When the entanglement started , it ran almost only onUNIXmachines and all pages were inactive . Htmlwas the standard file extension . When the great unwashed bug out usingPCsrunning DOS or Windows asWeb servers , however , the four letters in " html " were problematic . PCs stick to an 8.3 naming convention that allow only three letter in the extension . So the universe made elbow room for two standard wing : html andhtm . It used to be that you could tell whether a Web site was running on UNIX or Windows by looking at the file extension , but now there is no distinction . HowStuffWorks run off a UNIX server but use " htm " as its extension – it ’s the webmaster ’s selection .
Pages tagged withshtmlreveal that " Server Side Includes " are being used on the waiter . Htm and Html pages are static . The file is lifted off the server ’s disk and sent verbatim to the guest . With SSI , a pageboy can hold shred indicating that another file should be inserted in place of the tag in the exist Thomas Nelson Page . So a page is lifted off the server ’s disk and the server makes all the substitutions indicated . Then it sends the last page to the customer . This approach makes it very soft to vary thing like headers and footers on pages across an entire situation .
Active Server Pages ( asp ) is a Microsoft technology that allows even more flexibility . A Web page can contain Visual Basic code that the host carry out when it lift a varlet off the disc . This computer code can do just about anything – read databases , run other programs , custom format pages free-base on the user ’s ID , etc . You have a great deal of flexibility . On the other hand , your Web pages now hold back computer code that may have bugs in it , so it is possible for a pageboy to " crash . " With freedom comes responsibility …
( Note that is now becoming plebeian to seejspandphpextensions as well . Jsp is one of the latest additions to the Java Enterprise suite of APIs . " Jsp " stands for " Java Server Pages " and is effectively Java ’s answer to ASP . The code embedded in a varlet isJavarather than Visual Basic . " Php " used to stand for " Personal Home Page , " but now it ’s really just " PHP , " which is a scripting language that ’s mostly used withLinux . )
Theplextension bear forPERL , a scripting language . The page contains nothing but PERL script , and the playscript builds the Sir Frederick Handley Page on the tent flap . The script can also do anything as in asp pages .
Thecgiextension also means that a page contains code fulfil by the server , but the eccentric of code can be just about anything . On HowStuffWorks , C++ computer code is compiled to create " cgi " files ( SeeHow CGI Scripting Works . )
