PHP - Pass Variables Javascript To/from Php

I am trying to build a website, whe   1) User logs in (UserA) 2) Inserting a name in the search box and pressing "Search", a list of all users matching that name is shown 3) The user selects a user (UserB) from that list (among several results) 4) By selecting the user (UserB) , a message box appears to insert text 5) The user(UserA) types the message 6) The user(UserA) presses the SUBMIT button and sends the message to the other user(UserB)   The problem i face is how to pass the variables from my PHP script to the JavaScript script. Its easy for me to get the values of input fiedls, select fields or any other DOM element value. But if the value i need to pass to Javascript file to perform an AJAX call isnt inside a DOM element, how do i do it?   For example, for me to determine the user that will send the message (userA), i will need several data. This data, i have them inside the PHP script as variables, but dont know how to pass them to Javascript file.   Getting the data from the URL, or from a hidden input field or any other DOM element, is a solution, but i want to know the way that is safer and better.   To summarize:   [PHP Script with necessary data]-->[pass necessary data from PHP to JavaScript file]-->[perform an AJAX call] --> [return data to PHP Script]   How do i do it?   Thanks in advance.

i hav this url n whenever i click on this url i get som mssg send on my mobile
i hav a form whose code is
Code: [Select]
<form action="formprocess.php method="post">
telephone<input type="text name="telephone>
<input type="submit" name="submit">
</form>


i want to send telephone as parameter to this url so whenever user enters his telephone he gets d mssg
after clicking on submit.....but i hav no idea how to do tht...help me somone plssssssss

http://www.abc.in/smsapi/sendsms.php?sendto=9987234123&msg=your

Hi guys,

I have got a problem with the if variable statements. When I insert the text of the image location, the name of the strings and when I did not insert the username, all I get this:

Code: [Select]
image, strings or username are missing
Username or password are missing.

It should not display with the "Username or password are missing.", only the "image, strings or username are missing".  The area of the code i am working on:

    if($image == '' && $strings == '' && $username == '') {
  $errmsg_arr[] = 'image, strings or username are missing';
  $errflag = true;
    } elseif($username  == '' && $password == ''){
  $errmsg_arr[] = 'Username or password are missing.';
  $errflag = true;
    }


<?php
session_start();
    define('DB_HOST', 'localhost');
    define('DB_USER', 'myusername');
    define('DB_PASSWORD', 'mypassword');
    define('DB_DATABASE', 'mydbname');
       
    $errmsg_arr = array();
    $errflag = false;

    $link = mysql_connect(DB_HOST, DB_USER, DB_PASSWORD);
    if(!$link) {
  die('Failed to connect to server: ' . mysql_error());
    }

    $db = mysql_select_db(DB_DATABASE);
    if(!$db) {

die("Unable to select database");
    }

   function clean($var){

return mysql_real_escape_string(strip_tags($var));
    }
    $image = clean($_GET['image']);
    $strings = clean($_GET['strings']);
    $username = clean($_GET['user']);
    $pass = clean($_GET['pass']);
    $delete = clean($_GET['delete']);

    if($image == '' && $strings == '' && $username == '') {
  $errmsg_arr[] = 'image, strings or username are missing';
  $errflag = true;
    } elseif($username  == '' && $password == ''){
  $errmsg_arr[] = 'Username or password are missing.';
  $errflag = true;
    }
    if($errflag) {
  $_SESSION['ERRMSG_ARR'] = $errmsg_arr;
  echo implode('<br />',$errmsg_arr);
   }
   else {
$insert = array();
if(isset($_GET['image'])) {
    $insert[] = 'image = \'' . clean($_GET['image']) . '\'';
}
if(isset($_GET['strings'])) {
    $insert[] = 'strings = \'' . clean($_GET['strings']) . '\'';
}
if(isset($_GET['user'])) {
    $insert[] = 'username = \'' . clean($_GET['user']) .'\'';
}
if(isset($_GET['pass'])) {
    $insert[] = 'pass = \'' . clean($_GET['pass']) . '\'';
}
if(isset($_GET['delete'])) {
    $insert[] = 'delete = \'' . clean($_GET['delete']) . '\'';
}


if (count($insert)>0) {
   $names = implode(',',$insert);

if(isset($image) && ($strings) && ($username)) {
    echo "test";
} elseif($username && $delete == 'all') {

   if ($delete != NULL)
   {
     mysql_query("DELETE FROM user_list WHERE username='$username'");
     $deleted = mysql_affected_rows();
     
     if($deleted > 0) {
        echo("The data are now deleted");
     } else {
        echo("The user's data is empty");
     }
   }else{
     echo("failed");
   } 
   mysql_close($link);
   }
  }
 }
?>

Do anyone know how i can get pass on those methods if I enter the images, the name of the strings and the username or the or the username with the password?

Hello I have this login page with code


Code: [Select]
<?php

header("Expires: Thu, 17 May 2001 10:17:17 GMT");    // Date in the past
header ("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
header ("Cache-Control: no-cache, must-revalidate");  // HTTP/1.1
header ("Pragma: no-cache");                          // HTTP/1.0

session_start();

//Below means if session database server crdentials is not set, require to use/set that connection then

if (!isset($_SESSION['SESSION'])) require ( "../db_connection.php");



if($_SESSION['LOGGEDIN'] == TRUE)
{
header("Location: account.php");
exit;
}





$_SESSION['FORM_SUBMITTED'] = "";

   $CRLF = chr(13).chr(10);
$user_id = "";


if (isset($HTTP_GET_VARS["user_id"])) $user_id = $HTTP_GET_VARS["user_id"];
if ($user_id == '') { if (isset($_SESSION['user_id'])) $user_id = $_SESSION['user_id']; }



//Validations

$flg = "";
$error = "";
if (isset($HTTP_GET_VARS["flg"])) $flg = $HTTP_GET_VARS["flg"];

switch ($flg) {
case "yellow":
$error = "<font class=\"txt_main_str12_mar\"><BR>Your Account Has Not Been Verified.<BR>Check your email for Activation Instructions.<br>Click <a href=\"/courses/forgot_login.php\">here</a> to have the activation email resent.</font>";
break;
case "red":
$error = "<font class=\"txt_main_str12_mar\"><BR>That userid/password combination is not in our database.<br>Please Try Again.</font>";
break;
case "blue":
$error = "<font class=\"txt_main_str12_mar\"><BR>Your Session has Expired.<br>Please Login Again.</font>";
break;
default:
$error = "        <br>";
}


?>



<!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">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Login Page</title>
<script language="JavaScript">
<!--
function loadedPage() {

}

function submitForm() {
if (isEmpty(document.forms[0].user_id.value)) {
alert("Please enter your UserID.");
bSubmit = false;
return false;
}

if (isEmpty(document.forms[0].password.value)) {
alert("Please enter your Password.");
bSubmit = false;
return false;
}

document.forms[0].submit();

}
//-->
</script>





</head>

<body><center><br /><br />

<form name="form1" method="post" id="form1" action="/php/sessions/login/login_processing.php">
<table>

<tr>
    <td>User ID</td>
        <td><input type="text" name="user_id" id="user_id" value="<?php echo $user_id ?>" size="24" maxlength="30" /></td>
    </tr>
   
    <tr>
    <td>Password</td>
        <td><input type="password" name="password" id="password" size="24" maxlength="30" /></td>
    </tr>
   
    <tr>
    <td>&nbsp;</td>
        <td><input type="submit" name="Submit" value="Submit" onclick="submitForm();" /></td>
    </tr>

</table>
</form>



</center>
</body>
</html>

and login processing page with code


Code: [Select]
<?php

header("Expires: Thu, 17 May 2001 10:17:17 GMT");    // Date in the past
header ("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
header ("Cache-Control: no-cache, must-revalidate");  // HTTP/1.1
header ("Pragma: no-cache");                          // HTTP/1.0

session_start();

//Below means if session database server crdentials is not set, require to use/set that connection then

if (!isset($_SESSION['SESSION'])) require ( "../db_connection.php");



// reset session variables...
$_SESSION['user_id'] = "";
$_SESSION['LOGGEDIN'] = false;
$_SESSION['EMAIL'] = "";
$_SESSION['FNAME'] = "";
$_SESSION['LNAME'] = "";



// initialize variables...
$user_id = "";
$password = "";
$email = "";


// make sure post parameters were sent...
if (isset($HTTP_POST_VARS["user_id"])) $user_id = addslashes($HTTP_POST_VARS["user_id"]);
if (isset($HTTP_POST_VARS["password"])) $passwd = addslashes($HTTP_POST_VARS["password"]);



$_SESSION['user_id'] = $user_id;

// form variables must have something in them...
if ($user_id == "" || $password == "") 
{ 
header("Location: ./login_page.php?flg=yellow&user_id=".$user_id); exit; 
}



?>

I'm having problem with the last piece of code above, it's redirecting me eventhough I have entered a value on the userid and password from the login page...

I have a form, where I'm collecting registration info - like name, address, email, password. I'm calling another php file at server side code, where it will check whether the email exists or not. Pretty simple, just receiving those post variables and check with the database.

The issue, if I find a match, I want to go back to the registration.php page, using the following code:

if ($email_already_use == "y") {
      $_SESSION['ERROR'] = "Error";
      $_SESSION['MESSAGE'] = "This email address already used. Please try another";
      header("location: ".$settings['site_url']."registration.php");
      exit;
}

Now, I would like to place the user input at the registration.php file, but I do not want to use pass variable at URL like this:

header("location: ".$settings['site_url']."registration.php?".name=$name&address=$address&email=$email;

Is there anyway, I can retrieve those variables at registration.php, without specifying .name=$name&address=$address&email=$email ?

Thanks for your help. I see some sites has similar implementation, but did not find anything like how to do it.