Write in a .txt File from a form in PHP

Question

I saw this question and I wanted to ask a question in the comment but didn't have enough reputation. So I'm asking the question here.

I have a form in HTML:

<form action="myprocessingscript.php" method="POST">
Name : <input name="field1" type="text" />
Email : <input name="field2" type="text" />
<input type="submit" name="submit" value="Save Data">

And a processing script in php, myprocessingscript.php :

if (isset($_POST['field1']) && isset($_POST['field2'])) {
  $data = 'comments.txt' . $_POST['field1'] . ' ' . $_POST['field2'] . "\n";
  $ret = file_put_contents('comments.txt', $data);

  if ($ret === false) {
    die('There was an error Sending The Comment');
  } 

  else {
    echo "The Comment Has Been Sent Succesfully !";
  }
} 

else {
  die('Fill in The Form Please !');
}

if (isset($_POST['field1']) && isset($_POST['field2'])) {
  $data = 'comments.txt' . $_POST['field1'] . ' ' . $_POST['field2'] . "\n";
  $ret = file_put_contents('comments.txt', $data);

  if ($ret === false) {
    die('There was an error Sending The Comment');
  } 

  else {
    echo "The Comment Has Been Sent Succesfully !";
  }
} 

else {
  die('no post data to process');
}

When I write something in the form to a text file (comments.txt) the previous text is deleted - what should I do?

What is your question? And, you aren't supposed to ask questions in comments, you are supposed to ask new questions as you have done. — Brad, Feb 24 '14 at 15:58
... the funny thing is - you've not actually asked a question?! — CD001, Feb 24 '14 at 15:59
@Brad I Pressed Enter As a Mistake ! I Edited it Afer 20 seconds ! — Mahdi Abdi, Feb 24 '14 at 15:59
@superphonic Consider for a moment that not everyone on the planet is a native English speaker. — Brad, Feb 24 '14 at 16:03
@Brad I refuse to believe there is any language out there that arbitrarily capitalises every word within a sentence. Obviously referring to those languages based on the Latin alphabet. — superphonic, Feb 24 '14 at 16:07
@superphonic What would that have to do with anything? This person is clearly trying English, and is obviously not familiar with all of the rules. — Brad, Feb 24 '14 at 16:08
I've reformatted the question into proper Englanderish like, so you can stop arguing now :P — CD001, Feb 24 '14 at 16:14
Sorry Bros ! if you Downvoted this question because of that i didn't ask my question at first , please remove your vote ! — Mahdi Abdi, Feb 24 '14 at 16:19

score 5 · Accepted Answer · answered Feb 24 '14 at 16:02

5

You just need to add the 'append' flag to file_put_contents() :

file_put_contents('comments.txt', $data, FILE_APPEND);

See : http://uk3.php.net/manual/en/function.file-put-contents.php

answered Feb 24 '14 at 16:02

CD001

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May wanna add `lock_ex` there, to prevent.. lots of bad stuff :) – Predrag Beocanin Feb 24 '14 at 16:28
@SamFisher What Does it Do ?! – Mahdi Abdi Feb 24 '14 at 18:32
1

LOCK_EX - Exclusive lock (writer). Prevent other processes from accessing the file Prevents changes being done to the file while the changes are beind done to the file :) To add it to the upper stuff, you do: `file_put_contents('comments.txt', $data, FILE_APPEND | LOCK_EX);` – Predrag Beocanin Feb 24 '14 at 20:51

Write in a .txt File from a form in PHP

1 Answers1