CODEWITHSUNDEEP
phparrayssession
Anjani Gupta
Anjani Gupta

Reputation: 7

store form data in an array using session

I want to add form data into an array using session.
How can I do this please help me.
My HTML form is:

    <form action="#" method="post">
    Roll No:<input type="text" name="rollno" value="" id="rollno"  />
    <input type="submit" name="submit" value="Submit" />
    </form>

And my PHP code is:

    <?php
      session_start();
      $_SESSION['rollno'] = isset($_POST['rollno']);
      echo $_SESSION['rollno'];              
    ?>

I want to insert roll no into an array.

I have a record of 10 students. When I am inserting the first student Roll No then it prints the roll no, but when I insert the second student Roll No it overwrites the first student record.

I want to display all 10 student roll nos on same page.
How can I do this?

Upvotes: 0

Views: 3625

Answers (5)

Ander2
Ander2

Reputation: 5658

$_SESSION['rollno'] should be an array not a simple variable.

Something like this:

  <?php
  //Define somewhere $_SESSION['rollno'] as array. ONLY ONCE. Note that session must be started.
  session_start();
  if (!isset($_SESSION['rollno'])){
      $_SESSION['rollno'] = array();
  }


  if(isset($_POST['rollno'])){
       array_push($_SESSION['rollno'],$_POST['rollno']);
  }
  foreach ($_SESSION['rollno'] as $item){
        echo $item;  
  }   
  ?>

Upvotes: 1

user1032531
user1032531

Reputation: 26281

Almost there

<?php
  session_start();
  !isset($_SESSION['rollno']){$_SESSION['rollno']=array();}
  $_SESSION['rollno'][] = $_POST['rollno'];
?>

Also, recommend setting action to something:

echo("<form action={$_SERVER['PHP_SELF']} method='post'>");

Some don't like to use PHP_SELF and recommend hard coding it

Upvotes: 0

Michael Antonius
Michael Antonius

Reputation: 62

i know !

Let's try :

<?php
session_start();
$_SESSION['rollno'] = Array();
$_SESSION['rollno'][] = $_POST['rollno']; 
$_SESSION['rollno'][] = $_POST['rollno'];
var_dump($_SESSION['rollno']);
?>

You can access it from loop too .. Good luck

Upvotes: 0

SachinGutte
SachinGutte

Reputation: 7055

session_start();
if(isset($_POST['submit'])){
  if(isset($_POST['rollno'])){
      $_SESSION['rollno'] = $_POST['rollno'];
      echo $_SESSION['rollno'];        
  } 
}

Check first if form is submitted, then roll is set and if yes, assign it to session var.

Upvotes: 0

Prasanth Bendra
Prasanth Bendra

Reputation: 32740

  1. Start the session before you out put any thing to the page, ie before html code

  2. Make session a multi dimensional array

  3. Remove isset from isset($_POST['rollno']);

    <?php
      session_start();
      $_SESSION['rollno'][] = $_POST['rollno'];
      print_r($_SESSION['rollno']);              
?>

Upvotes: 2

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