CODEWITHSUNDEEP
php
Ravi
Ravi

Reputation: 1784

PHP: Getting HTML code in file while writing a .txt file

I am new to PHP, I want to write a text file and also download it at same time by clicking on button for that, I wrote a function in PHP which will create a text file and write some content in it and also start downloading when file is generated. Now it is writing the content what I want but issue is that it is writing HTML code also in this file.

My function to write file is as below

function GenerateReportFile($content){
  $filename="test.txt";
  $handle = fopen($filename,'w') or die("can't open files");


  fwrite($handle, $content);
  fclose($handle);

  header('Content-Type: application/octet-stream');
  header('Content-Disposition: attachment; filename='.basename($filename));
  header('Expires: 0');
  header('Cache-Control: must-revalidate');
  header('Pragma: public');
  header('Content-Length: ' . filesize($filename));
  readfile($filename);
  exit;
 }

and I am calling this function at my home page index.php and its code is :-

    <html>
    <head>
        <title> Formatted Report Generator </title>
    </head>
    <body>
        <form action="" method="POST">
            <input type="Text" name="txtHeaderText" placeholder="Header text"/><br/>
            <input type="number" name="txtTotalRows" title="Total number of required Rows"/>
            <button name="btn_GenerateFields">Generate Fields</button><br/>
            <button name="btn_GenerateFile">Generate File</button>
        </form>
    </body>

</head>

</html>
<?php

/* 
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
require_once './functions/generalFunctions.php';

$genFunc = new generalFunctions(); 

        if(isset($_POST['btn_GenerateFields'])){

            echo $genFunc->GenerateFormattedHtmlForm(4);        
        }
        // writing file
        if(isset($_POST['btn_GenerateFile'])){          
            $content = "Hi this is ravi bhushan and this is a report portal";
            $genFunc->GenerateReportFile($content);
        }

Now when I am clicking on Generate File button it is generating a file in which it is writing HTML code of index.php and after that it is writing that content which I am passing in GenerateReportFile function.

also when removing following code from GenerateReportFile($content) function then it is writing file on my local drive with proper output.

 header('Content-Type: application/octet-stream');
  header('Content-Disposition: attachment; filename='.basename($filename));
  header('Expires: 0');
  header('Cache-Control: must-revalidate');
  header('Pragma: public');
  header('Content-Length: ' . filesize($filename));
  readfile($filename);
  exit;

Upvotes: 1

Views: 240

Answers (1)

Carlos Garcia
Carlos Garcia

Reputation: 457

The problem is you can not send headers after sending text (html, text ... ) . You have to send first the html, and then ( for example JavaScript , do a redirect to another php to send the file. That would be a way to do it ( not very good ) , but it would work.

The redirect force to download and the url stays in place.

Upvotes: 1

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