Usage of session to retain to text box value in PHP

Question

Hi I have this and works fine except the following issue.

  echo "<form method='post' action=''>";
  echo "  <input type='text' name='txt1' id='txt1' value=".$_SESSION['txt1'].">";
  echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
  echo "</form>";
<A submit button here to send the form data>

The issue is if I have a value in the text box like John when I submit the form I retain the original user typed word Jonn in the text box. However if the user type John Carter, when the form is submitted it retains only John. In other words texts only up to first space between the texts. How do I retain entire text?

EDIT

<?php
  if(isset($_POST['sendone']))
  {
    echo "Hello";
    echo "<form method='post' action=''>";
    echo "  <input type='text' name='txt1' id='txt1'>";
    echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
    echo "</form>";
  }
  if(isset($_POST['sendtwo']))
  {
    if($_POST['txt1']=='')
    {
      echo "Hello";
      echo "<form method='post' action=''>";
      echo "  <input type='text' name='txt1' id='txt1'>";
      echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
      echo "</form>";
      echo "Empty";
    }
    else
    {
      $_SESSION['txt1'] = $_POST['txt1'];
      echo "Hello";
      echo "<form method='post' action=''>";
      echo "  <input type='text' name='txt1' id='txt1' value=".$_SESSION['txt1'].">";
      echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
      echo "</form>";
      echo "Hit success!";      
    }
  }
  ?>

@Atul I have edited my question and you'll see the full code — John English, Jul 06 '13 at 05:19
@Atul Yes. Sorry for not making it clear. Sendone is the submit button in form 1 which activates the form 2. Form 2 content you see above. — John English, Jul 06 '13 at 05:22
Check out http://stackoverflow.com/questions/379610/can-you-nest-html-forms — Jack Daniel's, Jul 06 '13 at 05:23
@Atul this is not a situation I have form2 inside form 1 or vise visa. Two seperate forms and form 1 calls form 2 to be visible. Please see some comment I made for the below answer by Mr. alien — John English, Jul 06 '13 at 05:31
AAh ok.. I think problem is you have both the text boxees with same name... Can you change the name of one text box and try?? — Jack Daniel's, Jul 06 '13 at 05:41

msturdy · Accepted Answer · 2013-07-06T12:16:37.537

You need to include the single quotes around the value for the value= attribue when echoing the _SESSION["txt1"], otherwise the resulting HTML isn't valid .. like this:

<?php
  if(isset($_POST['sendone']))
  {
    echo "Hello";
    echo "<form method='post' action=''>";
    echo "  <input type='text' name='txt1' id='txt1'>";
    echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
    echo "</form>";
  }
  if(isset($_POST['sendtwo']))
  {
    if($_POST['txt1']=='')
    {
      echo "Hello";
      echo "<form method='post' action=''>";
      echo "  <input type='text' name='txt1' id='txt1'>";
      echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
      echo "</form>";
      echo "Empty";
    }
    else
    {
      $_SESSION['txt1'] = $_POST['txt1'];
      echo "Hello";
      echo "<form method='post' action=''>";

      // check out this line here:
      echo "  <input type='text' name='txt1' id='txt1' value='" . htmlspecialchars($_SESSION['txt1']) . "'>";

      echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
      echo "</form>";
      echo "Hit success!";      
    }
  }
?>

Though, it's worth nothing that it is much more performant (and readable!) to use plain HTML where possible, and just use echo for the variables you wish to include.

You also need to escape the output using `htmlspecialchars()` — Ja͢ck, Jul 06 '13 at 11:34

score 0 · Answer 2 · 2013-07-06T06:04:57.130

Check this code.

<form name="" method="post">
<input type="text" name="txt1">
<input type="submit" name="sendtwo">
<input type="submit" name="sendone">
</form>

<?php
  if(isset($_POST['sendone']))
  {
    echo "Hello";
    echo "<form method='post' action=''>";
    echo "  <input type='text' name='txt1' id='txt1'>";
    echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
    echo "</form>";
  }
  if(isset($_POST['sendtwo']))
  {
    if($_POST['txt1']=='')
    {
      echo "Hello";
      echo "<form method='post' action=''>";
      echo "  <input type='text' name='txt1' id='txt1'>";
      echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
      echo "</form>";
      echo "Empty";
    }
    else
    {
      $_SESSION['txt1'] = $_POST['txt1'];
      echo "Hello";
      echo "<form method='post' action=''>";

      // check out this line here:
      echo "  <input type='text' name='txt1' id='txt1' value='" . $_SESSION['txt1'] . "'>";

      echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
      echo "</form>";
      echo "Hit success!";      
    }
  }
?>

can you post the code from which the values are generated for sendone and sendtwo — , Jul 06 '13 at 05:38
Assume form one has only a submit button. The form 2 content is in my question under edit. Thank you for looking. — John English, Jul 06 '13 at 05:49
you are using sendtwo and sendone ie there have to be two submit buttons in form one.. — , Jul 06 '13 at 06:01
I have updated the code, please check if it works for you. I assume you have 2 submit buttons in form one. ` ` — , Jul 06 '13 at 06:05

Usage of session to retain to text box value in PHP

2 Answers2