how to display text file using php/html

umarmir_123 · #1 (**permalink**) 05-15-09, 09:03 PM

hi,
i want to display contents of text file whenever a user clicks on the button. i have written following code but it doesn't work.
<input type="button" name ="compose" value="compose" onclick= <a href="C:\apache\htdocs\IMS\abc.txt" </a><br>
if anybody know plz help me here.
thnx

wirehopper · #2 (**permalink**) 05-16-09, 07:18 AM

Code:

<button onclick="location.href=abc.txt">Click to see file</button>

job0107 · #3 (**permalink**) 05-16-09, 08:13 AM

There are at least a couple ways you can do this.
And which way you choose depends on whether you just want to display the contents of the file on the current page or whether you want to display the file on a new page.

If you just want to display it on a new page you can do it like wirehopper showed but slightly different:

HTML Code:

<input type="button" name="compose" value="compose" onclick="location.href='IMS/abc.txt'" /><br />

But if you want to display the file on the current page then you will need to use AJAX.

This first example displays the file in a <div>:

HTML Code:

<script>
function display_file(f)
{
 var httpRequest = new XMLHttpRequest();
 httpRequest.open("GET", f, true);
 httpRequest.send(null);
 httpRequest.onreadystatechange = function()
 {
  if(this.readyState == 4 && this.status == 200)
  {
   document.getElementById("div1").innerHTML = this.responseText;
   }
  }
 }
</script>
<input type="button" name="compose" value="compose" onclick="display_file('IMS/abc.txt')" /><br />
<div id="div1"></div>

You could also display the file in a <textarea> so you can edit it:

HTML Code:

<script>
function display_file(f)
{
 var httpRequest = new XMLHttpRequest();
 httpRequest.open("GET", f, true);
 httpRequest.send(null);
 httpRequest.onreadystatechange = function()
 {
  if(this.readyState == 4 && this.status == 200)
  {
   document.getElementById("t1").value = this.responseText;
   }
  }
 }
</script>
<input type="button" name="compose" value="compose" onclick="display_file('IMS/abc.txt')" /><br />
<textarea id="t1"></textarea>

Or you could do the same thing with an anchor element.

For a new page:

HTML Code:

<a href="IMS/abc.txt">compose</a><br />

In a <div> on the current page:

HTML Code:

<script>
function display_file(f)
{
 var httpRequest = new XMLHttpRequest();
 httpRequest.open("GET", f, true);
 httpRequest.send(null);
 httpRequest.onreadystatechange = function()
 {
  if(this.readyState == 4 && this.status == 200)
  {
   document.getElementById("div1").innerHTML = this.responseText;
   }
  }
 }
</script>
<a href="#" onclick="display_file('IMS/abc.txt')">compose</a><br />
<div id="div1"></div>

In a <textarea> on the current page:

HTML Code:

<script>
function display_file(f)
{
 var httpRequest = new XMLHttpRequest();
 httpRequest.open("GET", f, true);
 httpRequest.send(null);
 httpRequest.onreadystatechange = function()
 {
  if(this.readyState == 4 && this.status == 200)
  {
   document.getElementById("t1").value = this.responseText;
   }
  }
 }
</script>
<a href="#" onclick="display_file('IMS/abc.txt')">compose</a><br />
<textarea id="t1"></textarea>

wirehopper · #4 (**permalink**) 05-16-09, 05:49 PM

HTML Code:

<head>
<title>.txt file viewer</title>
<style type="text/css">
body
{
width:1024px;
height:768px;
}
</style>
<script type="text/javascript">
function update_right(e)
{
var i=0;l=e.options.length;
for (i=0;i<l;i++)
        if (e.options[i].selected)
        {
                document.getElementById('iFrame').src=e.options[i].innerHTML;
                break;
        }
}
</script>
</head>
<body>
<select onchange="update_right(this)">
<option>file1.txt</option>
<option>file2.txt</option>
<option>file3.txt</option>
<option>file4.txt</option>
</select>
<iframe id="iFrame" src="file1.txt" height="100%" width="100%"></iframe>
</body>

umarmir_123 · #5 (**permalink**) 05-18-09, 01:12 AM

hello,
i need to pass php variables from 1 php page to another,so what are the ways to do it
it.if u need further details of my problem plz let me know. thnx

job0107 · #6 (**permalink**) 05-18-09, 07:00 AM

Use sessions.

umarmir_123 · #7 (**permalink**) 05-18-09, 12:05 PM

i tried sessions but i am not able to acess the session variable in another php page.
i can access variable in the page where i register it and intialize it but upon clicking the link present on this page, this variable is not accessable in the linked page.so what to do?

job0107 · #8 (**permalink**) 05-19-09, 08:06 AM

Quote:

Originally Posted by umarmir_123

i tried sessions but i am not able to acess the session variable in another php page.
i can access variable in the page where i register it and intialize it but upon clicking the link present on this page, this variable is not accessable in the linked page.so what to do?

You aren't being very specific.

Did you create the linked page?
Is the linked page within your domain?
Do you have access to the linked page so you can edit it?
Does the linked page have a php extention?

You must start the session in every page you want assess to the session variables.

Example:
pageOne.php

PHP Code:


			
<?php
session_start();
$_SESSION["test_Variable"] = "Hello World.";
?>
<html>
<head>
<title></title>
</head>
<body>
<a href="pageTwo.php">Display session variable</a>
</body>
</html>

pageTwo.php

PHP Code:


			
<?php session_start(); ?>
<html>
<head>
<title></title>
</head>
<body>
<?php
echo empty($_SESSION["test_Variable"]) ? "The session variable is not set." : $_SESSION["test_Variable"];
?>
</body>
</html>