Question

I have following login form pointing to the file ‘../exe/form-exec.php’.

<form id="loginForm" name="loginForm" method="post" action="../exe/login-exec.php">
  <table width="300" border="0" align="center" cellpadding="2" cellspacing="0">
    <tr>
      <td width="112"><b>Login</b></td>
      <td width="188"><input name="login" type="text" class="textfield" id="login" /></td>
    </tr>
    <tr>
      <td><b>Password</b></td>
      <td><input name="password" type="password" class="textfield" id="password" /></td>
    </tr>
    <tr>
      <td>&nbsp;</td>
      <td><input type="submit" name="Submit" value="Login" /></td>
    </tr>
  </table>
</form>

Where login-exec.php should validate where inputs login & password has been field and if NOT return to the form file with $errflag.

File login-exec.php:

//Start session
    session_start();

    //Include database connection details
    require_once('../inc/config.php');

    //Array to store validation errors
    $errmsg_arr = array();

    //Validation error flag
    $errflag = false;



..... 



//Input Validations
    if($login == '') {
        $errmsg_arr[] = 'Login ID missing';
        $errflag = true;
    }
    if($password == '') {
        $errmsg_arr[] = 'Password missing';
        $errflag = true;
    }

    //If there are input validations, redirect back to the login form
    if($errflag) {
        $_SESSION['ERRMSG_ARR'] = $errmsg_arr;
        session_write_close();
        header("location: ../form/login-form.php");
            exit();
}

And partly is working correctly – it is returning to the form – but no error is displayed.
Any suggestion much appreciated.

Answer 1

On the same page as your html form, do something similar to this:

session_start();
foreach ($_SESSION['ERRMSG_ARR'] as $msg) {
  echo $msg . "<br />";
}
etc...

To actually display the messages.