Save data in input fields when they press "BACK BUTTON"

[Gayner]

Hi, this is html form: And let's say they get a error "Please enter ur title must be more then 3 character" then they click the BACK BUTTON AND ALL THERE DATA IS GONE!!

 

How i fix?

 

<form action="u.php" method="post">
<INPUT TYPE=hidden NAME=name VALUE="<?php echo $_SESSION['user_name']; ?>">
<fieldset class="in" style="width:804px">
<legend>Submit Prayer</legend>
<div class="p9 ce">
<?php echo $l; ?>
Welcome, Please fill out the Prayer form and it will be submited into the Prayer Center!
</div>
<table class="ftbt">
	<tr>
		<td align="right" width="25%">Prayer Title:</td>

		<td><input type="text" name="title" value="" size="30" maxlength="50"/></td>
	</tr>
	<tr>
		<?php echo $pray; ?>
	</tr>
	<tr>
	</tr>
	<tr>
		<td  align="right">Level of Prayer:</td>
		<td class="cL"><select name="level">
			<option value="1">Please God Right Now</option>
			<option value="2">In a Few Minutes</option>
			<option value="3">Maybe today</option>
			<option value="4">Sometime this Week</option>
			<option value="5">In a couple of Years</option>
			<option value="6">Whenever you want</option>

			</select>
		</td>
	</tr>
	<tr>
		<td  align="right" valign="top">Prayer:</td>
		<td><textarea name="prayer" cols="88" rows="11"></textarea></td>
	</tr>
	<tr class="bts ce"><td colspan=2><b>Security Code Confirmation</b></td></tr>

	<tr>
		<td align="right">Your unique security code<input type="hidden" name="secId" value="76c2b0e6f20ed0f1b209bcf39dee8e06"></td>
		<td>
			<img src="php_captcha.php">
			<br><span class="desc">If The images are broke, please contact us.</span></span>
		</td>
	</tr>
	<tr>

		<td align="right" >Confirm security code:</td>
		<td><input type="text" size="3" maxlength="5" name="number" /><br><span class="desc">Please Enter the 3 Digit code above, Only Numbers are allowed.</span></td>
	</tr>
</table>

This is my PHP u.php

 

<?php 
include 'dbc.php';
page_protect();
session_cache_limiter('private,
must-revalidate'); 
header('private, must-revalidate'); 
if (!isset($_SESSION['user_id'])) {
$e = "";
}
  $title = $_POST['title'];
$text = $_POST['prayer'];
$time = date("D, M j Y, h:ia");
$name = $_POST['name'];
if(trim($_POST['title'])=='' || strlen(trim($_POST['title'])) > 30 || strlen(trim($_POST['title'])) > 30){
     echo "Please enter a Title between 3 and 30 characters!<br />"; //concatenate the $error Message with a line break
  exit;
  }
//maybe dont need $private = $_POST['private'];
if(trim($_POST['name']) > 20){
     echo "Please enter a username between 3 and 20 characters!<br />"; //concatenate the $error Message with a line break
  exit;
  }

      $key=substr($_SESSION['key'],0,3);
      $number = $_REQUEST['number'];
      if($number!=$key){
          echo '<center><font face="Verdana, Arial, Helvetica, sans-serif" color="#FF0000">
	   Validation string not valid! Please try again!</font></center>';

	   exit;
	   }
	   
      else
  {
       unset($_SESSION['key']);
     
/*
if (!isset($_SESSION)) {
    session_start();
}
// anti flood protection
if(isset($_SESSION['lol']) && $_SESSION['lol'] > time() - 30){
    // users will be redirected to this page if it makes requests faster than 2 seconds
    echo "Stop flooding please";
    exit;
}
$_SESSION['lol'] = time();
*/
mysql_query("INSERT INTO `prays` (`title`,`prayer`,`time`,`level`,`nameid`,`name`) VALUES (
'". mysql_real_escape_string($_POST['title']) ."',
'". mysql_real_escape_string($text) ."',
    '". mysql_real_escape_string($time) ."',
  '". mysql_real_escape_string($_POST['level']) ."',
  '". mysql_real_escape_string($e) ."',
'". mysql_real_escape_string($name) ."');") or die(mysql_error()) ;
mysql_close();
}

?>

[abazoskib]

On the page where your form is, you'll have to use isset() to determine whether each of these $title = $_POST['title'];

$text = $_POST['prayer'];

$name = $_POST['name'];

 

is set. If it is not already set then define it as $text=''; For ea textfield you could then add $text as its value. A select drop down is a little bit trickier than that, try it out.

 

This should get you started:

 

<?php
if(isset($_POST['title']))
    $title = $_POST['title'];
else
    $title = '';
if(isset($_POST['prayer']))
    $text = $_POST['prayer'];
else
    $text = '';
if(isset($_POST['name']))
    $name = $_POST['name'];
else
    $name = '';
?>

...
...

<table class="ftbt">
      <tr>
         <td align="right" width="25%">Prayer Title:</td>

         <td><input type="text" name="title" value="$title" size="30" maxlength="50"/></td>
      </tr>