Member Avatar for sigitas.darguzas

please need help html form auto ip fill

<form action='konkursas.php' method='post'>
    <p>El. pašto adresas</p><input type='email'  title="Čia turėtų būti jūsų email." name ='nail' size= '30'/>
    <input type='ip'  title="jusu ip." name ='autofillip' size= '30'/>
    <br />
    <br />        
    <input type='submit' name='submit' value='OK'/>
    <br />
</form>

php file

<?php
if (isset($_POST['submit'])) {
    $file = fopen('konkursas.txt','a+');
    $email = $_POST['nail'];
    $fmail = $email.PHP_EOL;
    fwrite($file,$fmail);
    fclose($file); 
    print_r(error_get_last());

    header("Location: http://www.mypage.com") ;
}

?>

Please help :)

  • 4 Contributors
  • 23 Replies
  • 326 Views
  • 1 Day Discussion Span
  • Latest Post Latest Post by AndrisP

Dani AI

Generated

Thread takeaway and practical path forward: the form must be handled on the server side and the client should not be allowed to supply its own IP. The suggestions from and point in the right direction — run the submission logic in a script, record the client address reported by the server, and decide whether to accept the entry before printing the form HTML. That keeps the IP trustworthy and makes it possible to swap the form for an image after a successful submission.

Implementation checklist (conceptual):

  • Keep one canonical record per submission (email, normalized IP, timestamp). Use a simple CSV line or, better, a small database table for reliability.
  • Before accepting a new entry, search existing records for the submitting IP; if present, render the replacement image instead of the form.
  • Maintain a separate ban list that is checked first on every request. Server-level blocks (.htaccess) are useful for permanent blocking but script-level checks are easier to update dynamically and work behind proxies when configured correctly.

Reliability and security notes:

  • Validate and sanitize the email server-side; never trust client-side checks alone.
  • Use atomic writes or file locking when appending to text storage to prevent corruption on concurrent requests. For anything beyond tiny traffic, switch to a database.
  • Beware of proxy headers like X-Forwarded-For: accept them only from trusted proxies. Otherwise rely on the server-provided client address.
  • Avoid sending redirects after output: ensure checks/redirects happen before any content is printed.

Troubleshooting pointers for the “error.” seen in the thread:

  • Ensure the page is served by PHP (correct file extension and server configuration) and that any PHP code is inside proper PHP tags.
  • Check file permissions/ownership so the web server can write the storage file.
  • Turn on error reporting or consult the server error log to find parse or permission messages.
  • Remember local tests will show 127.0.0.1; verify behavior on the actual host. For scale and manageability, migrate from a text file to a small database as soon as practical.

Recommended Answers

All 23 Replies

Member Avatar for pritaeas

Please help :)

With what exactly?

Member Avatar for sigitas.darguzas

i need autopatic fill ip. and post in txt file pvz
email@email.com [127.0.0.1]

Member Avatar for AndrisP

Not need input field "ip" in form - user can change it.

    <?php
    if (isset($_POST['submit'])) {
    $file = fopen('konkursas.txt','a+');
    $email = $_POST['nail'];
    fwrite($file,$email." [".$_SERVER['REMOTE_ADDR']."]".PHP_EOL);
    fclose($file);
    print_r(error_get_last());
    header("Location: http://www.mypage.com") ;
    }
    ?>
Edited by AndrisP
commented: Thanks :) +0
Member Avatar for sigitas.darguzas

how to create.ip ban script and banned ip redirect to ban.html ?

Member Avatar for pritaeas

how to create.ip ban script and banned ip redirect to ban.html ?

Search the current IP in your file. If found, redirect to your ban page.

commented: but. i dont know how do this. +0
Member Avatar for JorgeM

Do you mean automatically fill in the IP of the client submitting the form?

If the form is on a PHP page, use $_SERVER['REMOTE_ADDR'] to get the IP.

commented: i know but thanks. +0
Member Avatar for pritaeas

but. i dont know how do this.

Have a look at file to read your file. Then you can use a loop to check each line against your IP.

commented: Thanks for help. +0
Member Avatar for sigitas.darguzas

.htaccess. how to ban ip. and redirect ?

Member Avatar for AndrisP

for example:

RewriteEngine on

RewriteCond %{REMOTE_ADDR} ^127.0.0.1$
RewriteRule !(^ban_page.html) /ban_page.html [R]
Edited by AndrisP
Member Avatar for sigitas.darguzas 
    <form action='konkursas.php' method='post'>
    <p>El. pašto adresas</p><input type='email' title="Čia turėtų būti jūsų email." name ='nail' size= '30'/>
    <br />
    <br />
    <input type='submit' name='submit' value='OK'/>
    <br />
    </form>

I need users can fill one time per ip. then form changes to image. ?

Edited by sigitas.darguzas because: error
Member Avatar for AndrisP

if you save in file as

<?php

fwrite($file,$email.";".$_SERVER['REMOTE_ADDR'].";".PHP_EOL);

?>

you can use this function

<?php

function parsefile($filename){
    $file = @file($filename);
    while(list($key,$val)=each($file)){
        $line = explode(";",$val);
        if($line[1]==$_SERVER['REMOTE_ADDR']) return true;
        }
    return false;
    }

?>
Member Avatar for sigitas.darguzas

how use this function im newbie in html php.

Member Avatar for AndrisP

check IP address

if (parsefile("konkursas.txt")){ echo "Error message"; }
else { echo "<form> ..... </form>"; }
Member Avatar for sigitas.darguzas 
<!DOCTYPE html>
<title>title</title>
<link rel="shortcut icon" href="images/skerdykla.ico" type="image/icon">
<meta charset="utf-8" />
<link rel="stylesheet" href="styles/elegant-press.css" type="text/css" />
<script src="scripts/elegant-press.js" type="text/javascript"></script>
</head>
<body>
<div id="fb-root"></div>

<SCRIPT TYPE="text/javascript">
var message="Sorry, right-click has been disabled";
function clickIE() {if (document.all) {(message);return false;}}
function clickNS(e) {if
(document.layers||(document.getElementById&&!document.all)) {
if (e.which==2||e.which==3) {(message);return false;}}}
if (document.layers)
{document.captureEvents(Event.MOUSEDOWN);document.onmousedown=clickNS;}
else{document.onmouseup=clickNS;document.oncontextmenu=clickIE;}
document.oncontextmenu=new Function("return false")
</SCRIPT> 


<script>(function(d, s, id) {
  var js, fjs = d.getElementsByTagName(s)[0];
  if (d.getElementById(id)) return;
  js = d.createElement(s); js.id = id;
  js.src = "//connect.facebook.net/lt_LT/all.js#xfbml=1";
  fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));</script>

<div class="main-container">
  <header>
    <h1><a href="index.html">name</a></h1>
    <link rel="icon" href="/images/favicon.ico" type="image/x-icon" />
<link rel="shortcut icon" href="images/favicon.ico" type="image/x-icon" />
<embed src=muzika/evizija.mp3 autostart=true hidden=true>
</embed> 
  </header>
</div>
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   <nav> 
    <ul class="nav">
      <li class="active"><a href="index.html" name="Pagrindinis puslapis">Pagrindinis</a></li>
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    <div class="clear"></div>
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</div>
<div class="main-container">
  <div class="container1">
  <div id="mySlides">
    <div id="slide1">    
        <img src="images/slider1.jpg" alt="Slide 1 jFlow Plus" />
        <span><b class="slideheading">Nauja pradžia .</b><br />cs-skerdykla.tk projektas Grįžo!<a href="#" title="Coolness" class="readmore">Skaityti daugiau!</a></span>
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        <img src="images/slider2.jpg" alt="Slide 2 jFlow Plus" />
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    </div>
</div>

<div id="myController">
   <span class="jFlowControl"></span>
   <span class="jFlowControl"></span>
   <span class="jFlowControl"></span>
</div>

<section class="jFlowPrev"><div></div></section>
<section class="jFlowNext"><div></div></section>
<br />
<br />

    <article class="box" id="home_featured21">
      <div class="block"><h2>Serveris</h2>
 <iframe src='http://monitors.cancel.lt/info3.php?ip=82.135.154.176&port=27016&g=cs' scrolling='no' frameborder='0' width='340' height='130'></iframe>

      </div>
      <div class="block"><h2></h2>
<br /><br />


      </div>
      <div class="block last"><h2>Konkursas<br> dėl Vip,Admin</h2>
      if (parsefile("konkursas.txt")){ echo "Error message"; }
else { echo "<form><form action='konkursas.php' method='post'>
    <p>El. pašto adresas</p><input type='email'  title="Čia turėtų būti jūsų email." name ='nail' size= '30'/>
    <br />
    <br />
    <input type='submit' name='submit' value='OK'/>
    <br />
</form></form>"; }
      </div>
      <div class="clear"></div>
    </article>

 </div>


<br /><br />

     <div class="container2">
     <article id="home_featured2">
      <ul>
        <li>
          <div class="imgholder"><a href="images/slide1.jpg" data-gal="prettyPhoto[featured]" title="First Featured Title"><img src="images/featured1.jpg" width="275" height="145" alt="" /></a></div>
          <h4>Startas.</h4>
          <p>Pirmos akimirkos startavus serverį</p>
        </li>
        <li>
          <div class="imgholder"><a href="images/slide2.jpg" data-gal="prettyPhoto[featured]" title="Second Featured Title"><img src="images/featured2.jpg" width="275" height="145" alt="" /></a></div>
          <h4>Startas.</h4>
          <p>Pirmos akimirkos startavus serverį</p>
        </li>
        <li class="last">
          <div class="imgholder"><a href="images/slide3.jpg" data-gal="prettyPhoto[featured]" title="Third Featured Title"><img src="images/featured3.jpg" width="275" height="145" alt="" /></a></div>
          <h4>Startas.</h4>
          <p>Pirmos akimirkos startavus serverį</p>
        </li>
      </ul>
      <br class="clear" />
    </article>
  </div>
</div>

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    <div class="calloutcontainer"> 
        <div class="container_12"> 
            <div class="grid"> 

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      <h2>Rask mus Facebook'e</h2>
      <div class="fb-like"
      data-href="https://www.facebook.com/pages/Cs-SkerdyklaTk/1420868914818550" data-colorscheme="light" data-layout="standard" data-action="like" data-show-faces="true" data-send="true">
      </div>
       </article>
            <div class="clear"></div> 
        </div> 
        <div class="calloutoverlay"></div> 
        <div class="calloutoverlaybottom"></div> 
    </div> 
</div> </div> 

<footer>
<div class="main-container">
    <p class="tagline_center"><p id="tagline2"> Email'as: <a href="mailto:sigitasdarguzas@gmail.com">sigitasdarguzas@gmail.com</a></p></p>
    <div id="fb-root"></div>
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<div class="main-container">
    <p class="tagline_left">Projektas susijunges su<a href="" title="partneriai" target="_blank" >Taboras.Tk</a></p>
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    <br class="clear" />
    <div id="fb-root"></div>

  </footer>

<br />
<br />
<script type="text/javascript" src="jQuery.tooltip.js"></script>
    </body>
</html>

error.

Edited by sigitas.darguzas because: error
Member Avatar for AndrisP

Put function to beginning of this file,

    <?php
    function parsefile($filename){
    $file = @file($filename);
    while(list($key,$val)=each($file)){
    $line = explode(";",$val);
    if($line[1]==$_SERVER['REMOTE_ADDR']) return true;
    }
    return false;
    }
    header("Content-type:text/html;charset=utf-8");
    ?>

edit lines 90-100

<div class="block last"><h2>Konkursas<br> dėl Vip,Admin</h2>
<?php if (parsefile("konkursas.txt")){ echo "Error message"; }
else { ?>
<form action='konkursas.php' method='post'>
<p>El. pašto adresas</p><input type='text' title="Čia turėtų būti jūsų email." name ='nail' size= '30'/>
<br />
<br />
<input type='submit' name='submit' value='OK'/>
<br />
</form>
<?php } ?>

and save this file as php

Edited by AndrisP
Member Avatar for AndrisP

HTML - Hyper Text Markup Language, it is not script! Impossible to check text file without php.

Member Avatar for sigitas.darguzas

possible html code insert to php ?

Member Avatar for AndrisP

Yes of course. See my comment above

Member Avatar for AndrisP

Yes of course. See my comment above.

Member Avatar for sigitas.darguzas

you can show me ? how ?

Member Avatar for AndrisP

e.g.

<?php 
// put php script - functions classes, methods etc

header("Content-type:text/html;charset=utf-8");
print "<?xml version=\"1.0\" encoding=\"utf-8\"?>
"; ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="lt">

<head>
.....
</head>
<body>
<?php
// again php script in HTML body
?>
<p>print some HTML content</p>
<?php
// and again php script in HTML body
?>
</body>
</html>
Edited by AndrisP
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