[ASP-PHP] Read a file [ASP-PHP] Edit in a file [ASP-PHP] Manage files [ASP-PHP] Read a directory
Read a file Read and post content of a file

We can read all Files using the File System and it does not matter about the origin of the file… In this presentation, we focus on files containing text and usually with a .txt format extension. But, it could also be an html, asp, or php file!

How to do it?

With ASP, you must: Create an object such as Scripting.FileSystemObject <% Set FSO = _    Server.CreateObject("Scripting.FileSystemObject") %> Collect the long path of the folder that contains the file <% dir = Server.MapPath("my_folder/") %> Set up the complete path of the file <% Fnm = dir & "\my_file.ext" %> Attention to \ Verify that this file truly exists <% if FSO.FileExists(Fnm) then %> Open the file <% set inF = FSO.OpenTextFile(Fnm,1,false) %> And then, either read all the file (one shot) <% = inF.readAll %> Or, just read one line <% = inF.readLine %> Or, skip one line <% inF.skipLine %> Or, read every single line till the end <% While not inF.atEndOfStream %>    <%= inF.readLine %><br> <% Wend %> Or, read only some characters <% = inF.Read(5) %> Finally, close the file <% inF.close %>

With PHP, you must: Define the file of interest <? $Fnm = "my_folder/my_file.ext"; ?> Verify that this file truly exists <? if (file_exists($Fnm)) { ?> And then, either read all the file in one time in a table <? $table = file($Fnm); ?> And, post this table <? while(list($cle,$val) = each($table)) {    echo $val."<br>"; } ?> Or, open the file <? $inF = fopen($Fnm,"r"); ?> And, read some characters but stop if bumping into \n or getting the end of the file! <? echo fgets($inF, 4096); ?> The position of the cursor is in: <? $ptr = ftell($inF); ?> and can be modified by: <? $ptr = fseek($inF,$ptr-10); ?> Or read all file till the end <? while (!feof($inF)) {    echo fgets($inF, 4096)."<br>"; } ?> Finally, close the file <? fclose($inF); ?>

Comments

1. With PHP, we are able to open and read any distant web page... Useful to index it!
   
   

   <? $strResult = implode("",file("http://www.asp-php.net/tutorial/asp-php/lecture.php")); ?>

   
   
2. And the same in ASP with HTTP Client Library (free) or AspHTTP (fee):
   
   

   <% Set HttpObj = Server.CreateObject("AspHTTP.Conn") HTTPObj.Url = "http://www.asp-php.net/tutorial/asp-php/lecture.php" strResult = HTTPObj.GetURL %>