PHP - Unique Code Based On Users Unique Email Address Inserted Into Mysql Table?

I'm not sure I'm in the right place, but I'm looking to create a unique URL that links to the same page every time I send an email after a form is submitted on my website and have it expire after 15 days.  After expiring, the link would redirect to a default page.  I'm still a beginner and realize this is probably going to be a tough task, but any resources or direction provided would be much appreciated.

Thanks for the help in advance!

I have a mysql unique index on two columns:
UNIQUE KEY `page_id` (`page_id`,`tag_id`)

I have a mysql query like this:
Code: [Select]
mysql_query("insert into link_tags (page_id, tag_id) values ($page_id, $tag_id)");
If I run that, what would be the best way for php not to fail if the key already exists?

within a while loop, would this be best?
Code: [Select]
if(mysql_query("insert into link_tags (page_id, tag_id) values ($page_id, $tag_id)"))
continue;
Or would the code above (first code) be sufficient enough?

Hello guys,

Hi,

First off:
I got a table with two columns and 100.000 rows.
Some of the rows are duplicates (allowing me to "weight" the chance of some rows being hit the first time the script runs)
Allright. This i what I want to do:



When the user clicks a button:
1. Generate a random selected row from the table (this I allready accomplished using this code:

Code: [Select]
<?php

  //CODE FROM WWW.GREGGDEV.COM

  function random_row($table, $column) {

      $max_sql = "SELECT max(" . $column . ") 

                  AS max_id

                  FROM " . $table;

      $max_row = mysql_fetch_array(mysql_query($max_sql));

      $random_number = mt_rand(1, $max_row['max_id']);

      $random_sql = "SELECT * FROM " . $table . "

                     WHERE " . $column . " >= " . $random_number . " 

                     ORDER BY " . $column . " ASC

                     LIMIT 1";

      $random_row = mysql_fetch_row(mysql_query($random_sql));

      if (!is_array($random_row)) {

          $random_sql = "SELECT * FROM " . $table . "

                         WHERE " . $column . " < " . $random_number . " 

                         ORDER BY " . $column . " DESC

                         LIMIT 1";

          $random_row = mysql_fetch_row(mysql_query($random_sql));

      }

      return $random_row;

  }

  

  //USAGE

$randomdata = random_row('MYTABLE', 'MYCOLUMN');

echo $randomdata[2]; // Where [2] is the data I want to extract.


?>

This script works fine. The problem is that I want to exclude the results that have allready been shown. With me?
Therefore, since I have duplicate rows of certain data, I need to exclude all the rows that are the same.

I have a couple of solutions, but I can't seem to fit it into this script. (I will not use the ORDER_BY_RAND() query; it'll be too slow for a table with 100.000 rows)


SO:
Here's ideas I've come up with that might work, but because of my limited experience with PHP and MySQL, haven't been able to accomplish.

1) Insert a "temporary" column in the table which is filled with 1 and 0's where 1 indicates that the row has allready been taken? (If possible)
2) Use PHP sessions to store the previously generated rows?
3) Create a temporary table, which fills up with the allready generated rows by the random script?
4) Create a unique txt-file (e.g: _USERSIPADRESS__.txt) which can be used to save and extract data from the random script? (fopen, fwrite and so fourth)



I hope you understand what I'm trying to do
Any suggestions would be highly appreciated.

Thank you.

How do I total unique id's with php or MySQL.  For instance in MySQL I have...

ID
1
1
3
4
2
1
1
3

How can I total all of the 1's, all of the twos, all of the threes and so forth. 
I have four 1's, one 2, two 3's and so forth...

I am trying to write a script that runs through a CSV file and inserts unique values in a mysql database and spits the duplicate out into a new CSV.

I can find the duplicates when I load it into an array, but when I insert them into a MySQL database, I cannot determine if they are duplicates. 

If I use INSERT IGNORE, it will run the whole file, and reject the duplicates.  This is fine, except I need to create a file of the duplicate entries.

What is the best way to determine if the insert attempt was rejected?

I could do a select to see if the row is there, spit it out...insert if not, but I was thinking there should be a way for MySQL to talk back to me to cut the queries in half...

Any ideas?

Thanks

$info[130] is the random code, but how do i go about making sure the code is not used on any other row.... (even thou it would be unlikely even with this code, it is still possible)

Code: [Select]
<?php
# IF THE USER DOES NOT HAVE A UNIQUE CODE, CREATE ONE
if ($info[130] == "0") {
function randomPassword() {
  $salt = "abchefghjkmnpqrstuvwxyz0123456789";
  srand((double)microtime()*1000000);
  $i = 0;
  while ($i <= 14) {
$num = rand() % 33;
$tmp = substr($salt, $num, 1);
$pass = $pass . $tmp;
$i++;
  }
  return $pass;
}
$info[130] = randomPassword();
}
?>

I spent several hours trying to figure this thing out.  Thought I had it nailed, but still getting duplicate record entries into the MySQL DB when I do NOT want them.   Here's the plot:   People filling out the possible attendance form for a Ham Radio event *sometimes* bring a 2nd person (either a spouse or a friend).  The 2nd person may, or may not, also has a Callsign which I need to put INSERT the same MySQL Callsign column.  In any event, to also identify the 2nd person as coming 'with' the 1st person.   MOST of the attendees are individuals with NO 2nd person.   My entry form has these primary fields:   callsign fullname   AND...   callsign2 fullname2   What I came up with was to process the MySQL INSERT for the primary callsign & fullname into their respective MySQL DB Columns (which works fine), and then........... immediately following the main Query INSERT, to do a substitution type thing depending on whether or not a form entry  was made in the callsign2 field, AND/OR, the fullname2 field.   This partially works, but if there is ONLY a primary callsign and fullname in the form, I'm still getting a duplicate record entry which includes the callsign in the `with` column (which should ONLY take place IF there is a 2nd person indicated).   Confusing?   Here is what I have  been wrestling with to try and accomplish the objective, and now my eyes are glazed over ;-(

// TRICKY PART HERE

// If a 2nd Callsign AND a Fullname

if ($callsign2 != ' ' && $fullname2 != ' ') {

// Still make reference to the primary Callsign in the MySQL DB `with` column

$with = $callsign;

// Assignment to allow 2nd Callsign to be entered in the MySQL `callsign` column

$callsign=$callsign2;
$fullname=$fullname2;

$sql="INSERT INTO `mytable` (`callsign`, `fullname`, `with`)
VALUES ('$callsign', '$fullname', '$with')";

// If NO 2nd Callsign BUT a Fullname

} elseif ($callsign2 = ' ' && $fullname2 != ' ') {

// Make reference to the primary Callsign in the MySQL DB `with` column

$with = $callsign;

$callsign=$callsign2;
$fullname=$fullname2;

$sql="INSERT INTO `mytable` (`callsign`, `fullname`, `with`)
VALUES ('$callsign', '$fullname', '$with')";

} else {

// The only thing I could thing of to (hopefully) NOT make a 2nd entry 
// record in the MySQL DB IF there is NO 2nd person referenced

$with = $callsign;

}

if (!mysqli_query($con,$sql)) {
  die('Error: ' . mysqli_error($con));
}

This mostly works EXCEPT if only a single (primary) person entry.   The recap the objetives:   1. If ONLY a primary/single person entry on the form:   * callsign & fullname get INSERTed into the `callsign` and `fullname` columns in the DB as ONLY one record entry   2. If BOTH a primary and 2nd person on the form:   A. IF the 2nd person has a Callsign, then the 2nd record entry would be:   *   callsign2 & fullname2 get INSERTed into the `callsign` & `fullname` columns in the 2nd DB as a separate record entry *   callsign of the primary person also gets INSERTED into the `with` column in the same 2nd DB record entry   B. IF the 2nd person does NOT have a callsign, then the 2nd record entry would be:   *  fullname2 gets INSERTed into the `fullname` column in the DB as a separate 2nd DB record entry *  callsign of the primary person also gets INSERTED into the `with` column in the same 2nd DB record entry   I obvioiusly have overlooked something, but just can't seem to figure it out at this point {SIGH}.   Thanks for any enlightenment.   -FreakingOUT      

I've started a to-do app, and everything works fine. Every user has his own unique to-do items that he can add. The only issue is that when I log-in with a user, ALL the items of all users are displayed when I'm redirect to my main page. I want to make it as so every user has his own page where only the to-do items he has created are visible, not every item from every user. I'm a total beginner with PHP so I'm sorry if this is a stupid question.

This is my todomain.php code

<?php
require 'db_conn.php';
require 'config.php';
session_start(); 
   
// If the session variable is empty, this  
// means the user is yet to login 
// User will be sent to 'login.php' page 
// to allow the user to login 
if (!isset($_SESSION['id'])) { 
    $_SESSION['msg'] = "You have to log in first"; 
    header('location: login.php'); 
} 
   
// Logout button will destroy the session, and 
// will unset the session variables 
// User will be headed to 'login.php' 
// after loggin out 
if (isset($_GET['logout'])) { 
    session_destroy(); 
    unset($_SESSION['id']); 
    header("location: login.php"); 
} 


?>

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset= "UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="IE=edge"> 
<link rel="stylesheet" href="css/bootstrap-grid.min.css">
<link rel="stylesheet" href="css/bootstrap.min.css">
<link rel="stylesheet" href="style.css">
<a href="index.php?logout='1'" style="color: black;"> 
                    Click here to Logout 
                </a> 
 <?php if (isset($_SESSION['success'])) : ?> 
            <div class="error success" > 
                <h3> 
                    <?php
                        echo $_SESSION['success'];  
                        unset($_SESSION['success']); 
                        echo $_SESSION["username"]
                    ?> 
                </h3> 
            </div> 
        <?php endif ?> 

<title>TODO App</title>
<script src="https://kit.fontawesome.com/d72928d9b9.js" crossorigin="anonymous"></script>
</head>
<body>
    <div class="container m-5 p-2 rounded mx-auto bg-light shadow">
    <!-- App title section -->
    <div class="row m-1 p-4">
        <div class="col">
            <div class="p-1 h1 text-primary text-center mx-auto display-inline-block">
                <i class="fa fa-check bg-primary text-white rounded p-2"></i>
                <u>My Todo-s</u>
            </div>
        </div>
    </div>
    <!-- Create todo section -->
  <form action="app/add.php" method="POST" autocomplete="off">
    <div class="row m-1 p-3">
        <div class="col col-11 mx-auto">
            
            <div class="row bg-white rounded shadow-sm p-2 add-todo-wrapper align-items-center justify-content-center">
                
                <div class="col">
                    <input class="form-control form-control-lg border-0 add-todo-input bg-transparent rounded" type="text" name="title" placeholder="Add new ..">
                </div>
                <div class="col-auto m-0 px-2 d-flex align-items-center">
                    <label class="text-secondary my-2 p-0 px-1 view-opt-label due-date-label d-none">Due date not set</label>
                    <i class="fa fa-calendar my-2 px-1 text-primary btn due-date-button" data-toggle="tooltip" data-placement="bottom" title="Set a Due date"></i>
                    <i class="fa fa-calendar-times-o my-2 px-1 text-danger btn clear-due-date-button d-none" data-toggle="tooltip" data-placement="bottom" title="Clear Due date"></i>
                </div>
                
                <div class="col-auto px-0 mx-0 mr-2">
                    
                    <button type="submit" class="btn btn-primary">Add</button>
                    
                    
                </div>
             
            </div>

            
        </div>
    </div>
    </form>

     
          <?php
            $todos=$conn->query("SELECT * FROM  todos ORDER BY id ASC");
          ?>

 
  <div class="row mx-1 px-5 pb-3 w-80">
        <div class="col mx-auto">

           <?php
           while($todo=$todos->fetch(PDO::FETCH_ASSOC)){ ?>
            <!-- Todo Item 1 -->

            
            <div class="row px-3 align-items-center todo-item rounded">

                <?php if($todo['checked']){ ?>
                
                <input type="checkbox" class="check-box" data-todo-id="<?php echo $todo['id'];?>" checked />
            <h2 class="checked"><?php echo $todo['title'] ?> </h2>
            <div class="col-auto m-1 p-0 todo-actions">
                    <div class="row d-flex align-items-center justify-content-end">
              
            </div>
          </div>
        
             

                      
            <?php } else{ ?>
                <input type="checkbox" class="check-box" data-todo-id="<?php echo $todo['id'];?>"/>
                 <h2><?php echo $todo['title'] ?></h2>
                   
                          

            <?php } ?>

                <div class="col-auto m-1 p-0 d-flex align-items-center">


                    <h2 class="m-0 p-0">
                        <i class="fa fa-square-o text-primary btn m-0 p-0 d-none" data-toggle="tooltip" data-placement="bottom" title="Mark as complete"></i>
                        
                    </h2>
                </div>
               
                
             
                <div class="col-auto m-1 p-0 todo-actions">
                    <div class="row d-flex align-items-center justify-content-end">

                        <h5 class="m-0 p-0 px-2">
                            <i class="fa fa-pencil text-info btn m-0 p-0" data-toggle="tooltip" data-placement="bottom" title="Edit todo"></i>
                        </h5>
                        <h5 class="m-0 p-0 px-2">
                          
                             
                        <i class="remove-to-do fa fa-trash-o text-danger btn m-0 p-0" data-toggle="tooltip" data-placement="bottom" title="Delete todo" id="<?php echo $todo['id']; ?>"></i>
                      </h5> 
                    </div>
                    <div class="row todo-created-info">
                        <div class="col-auto d-flex align-items-center pr-2">
                            <i class="fa fa-info-circle my-2 px-2 text-black-50 btn" data-toggle="tooltip" data-placement="bottom" title="" data-original-title="Created date"></i>
                            <label class="date-label my-2 text-black-50"><?php echo $todo['date_time'] ?></label>
                        </div>
                    </div>
                </div>
            </div>
        
        <?php } ?>

    

</div>


 <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
    <script src="js/bootstrap.bundle.min.js"></script>
    <script src="js/myjs.js" ></script>
    <script src="js/jquery-3.3.1.min.js"></script>

    <script>
        $(document).ready(function(){

          $(".remove-to-do").click(function(e){
                const id = $(this).attr('id');
                 $.post('app/remove.php', 
                      {
                          id: id
                      },
                      (data) => {
                         if(data){
                            $(this).parent().parent().parent().parent().hide(300);
                         }
                      }

                );
                
               
            });
          


            $(".check-box").click(function(e){
                const id = $(this).attr('data-todo-id');
                
                $.post('app/checking.php', 
                      {
                          id: id
                      },
                      (data) => {
                         if(data!='error'){
                            const h2= $(this).next();
                            if(data === '1'){
                                h2.removeClass('checked');
                            }else{
                                h2.addclass('checked');
                            }
                         }
                      }

                );
            });
        });
    </script>


</body>
</html>

 

I have a form that passes multiple images and I wanted them to have a substring of a md5 encrypted time for generating unique codes so I don't delete or overwrite an older file. I keep the actual images in a folder and the path in mysql. The folder is working perfectly and there are no problems generating unique codes but I have been trying all night and I can't figure out why mysql won't update. I can actually get it to update but then I loose the functionallity of the code and if I don't upload a 4 images and leave one blank, the blank one deletes the previously uploaded field in the table row.

Here is the md5 encrypted time for generating unique codes:

Code: [Select]
$unique = strtolower(substr(md5(time()), 0, 4));
This is how it works with the folder:

Code: [Select]
$filePath = $uploadDir . $unique . $fileName;
This is how I get it to update mysql but then loose functionality:

Code: [Select]
$values[$i] =  $unique . mysql_real_escape_string(basename(trim($_FILES[$fields[$i]]['name'])));
Here is the entire code:

Code: [Select]
<?php
require_once('storescripts/connect.php');
mysql_select_db($database_phpimage,$phpimage);
$unique = strtolower(substr(md5(time()), 0, 4));
$uploadDir = 'upload/';

if(isset($_POST['upload' . $config]))
{
foreach ($_FILES as $file)
{

$fileName = $file['name'];
$tmpName = $file['tmp_name'];
$fileSize = $file['size'];
$fileType = $file['type'];

if($fileName==""){

$filePath = 'upload/';
}
else{

$filePath = $uploadDir . $unique . $fileName;
}

$filePath = str_replace(" ", "_", $filePath);
$result = move_uploaded_file($tmpName, $filePath);

if(!get_magic_quotes_gpc())
{
$fileName = addslashes($fileName);
$filePath = addslashes($filePath);
}
$fileinsert[]=$filePath;
}
}

$mid   = mysql_real_escape_string(trim($_POST['mid']));
$cat   = mysql_real_escape_string(trim($_POST['cat']));
$item  = mysql_real_escape_string(trim($_POST['item']));
$price = mysql_real_escape_string(trim($_POST['price']));
$about = mysql_real_escape_string(trim($_POST['about']));

$fields = array();
$values = array();
$updateVals = array();
for($i=1; $i<=4; $i++)
{
    $fields[$i] = 'name'.$i;
    $values[$i] =  mysql_real_escape_string(basename(trim($_FILES[$fields[$i]]['name'])));
    if($values[$i] != '')
    {
        $updateVals[] = "{$fields[$i]} = '{$values[$i]}'";
    }
}

$updateNames = '';
if(count($updateVals))
{
$updateNames =  ", " . implode(', ', $updateVals);
}

$update = "INSERT INTO image
               (mid, cid, item, price, about, name1, name2, name3, name4)
           VALUES
               ('$mid', '$cat', '$item', '$price', '$about', '$values[1]', '$values[2]', '$values[3]', '$values[4]')
           ON DUPLICATE KEY UPDATE
                cid = '$cat', item = '$item', price = '$price', about = '$about' $updateNames";
$result = mysql_query($update) or die (mysql_error());

$id = mysql_insert_id();

?>
<p style="font-size:35px; font-family:Arial, Helvetica, sans-serif; color:#255E67; margin-left:25px;">Your Item Has Been Uploaded!</p>
<script type="text/javascript">
setTimeout('ourRedirect()', 2000)
function ourRedirect() {
location.href='protator_php.php?mid=<?php echo $id ?>'
}
</script>

How can i make this hit counter code, so that it doesnt update the views on ALL of my videos. i want it to be unique for each video id. any ideas?

Code: [Select]
<?php
                $querySelect = mysql_query("SELECT * FROM `mydatabase` WHERE `counter`");
                $row = mysql_fetch_assoc($querySelect);
                $counter = $row['counter'];
               
                if (empty($counter)) {
                       
                        $counter = 1;
                        $insert = mysql_query ("INSERT INTO counter VALUES ('counter')");
                }
               
                        $add = $counter+1;
                        $insertNew = mysql_query("UPDATE mydatabase SET counter=('$add')");
                                echo "Video Views";
                                echo ":";
                                echo" ";
                                echo"<br />";
                                echo "$counter";
                ?>
 www.game4vids.com if you pick a video you can see that it changes the views on ALL the videos i have.

Below is my code... I'm new to OOP so forgive me if it's poorly designed. What i'm trying to do is make sure that asset_key never get's duplicated. So when time comes to insert a new record, i can rest assures that asset_key will not duplicate.

For some reason $random_number never get's back a value;

Code: [Select]
<?php
class Randomize
{
function createRN()
{
$num = rand(100000,999999);

$sql = "SELECT * FROM mer_asset_header WHERE asset_key = '$num'";
$go = oci_parse($conn, $sql);
oci_execute($go);
$count = oci_num_rows($go);
if($count = 1)
$repeat = Randomize::createRN();
else
return $num;
}
}

$random_number = new Randomize;
$random_number->createRN();
?>

I should also mention, that if the query finds that asset_key, it should also run createRN() again untill it gets a unique one.

Thanks for the help in advance!

Code: [Select]
<?php

//Register 1.0.1
include("function.php");
connect();
$num = 0;
if(isset($_POST['submit']))
{

if($_POST['username'] == '' || $_POST['password1'] == '' || $_POST['password2'] == '')
{
$num = 1;
echo "Please supply all fields;";
exit();
}
elseif(strlen($_POST['username']) > 25)
{
$num = 1;
echo "Username must be under 25 characters long;";
exit();
}
elseif(strlen($_POST['password1']) > 16)
{

if(strlen($_POST['password2']) >16)
{
$num = 1;
echo "Password are over 16 characters long;";
exit();
}
$num = 1;
echo "Passwords are not equal";
exit();

}
elseif($_POST['password1'] != $_POST['password2'])
{
$num = 1;
echo "Passwords are not equal;";
exit();
}
}

else 
{
if(isset($_POST['submit']))
{
$username = $_POST['username'];
safe($username);
if($_POST['password1'] = $_POST['password2'])
{
$password = $_POST['password'];
password($password);
echo "INSERT INTO user (username, password) VALUES ('$username','$password')";
}
else {
echo "Passwords are not equal; Double Take";//Yes Double Take is a military term
exit();
}
}
}

?>

<HTML>
<form action="register.php" method="post">
Username:<input type="text" name="username">
<br>
Password:<input type="password" name="password1">
<br>
Password Check:<input type="password" name="password2">
<br>
<input type="submit" name="submit" value="Register!">
</HTML>

Here is where I put the code:

   if(isset($_POST['submit']))
   {
      $username = $_POST['username'];
      safe($username);
      if($_POST['password1'] = $_POST['password2'])
      {
         $password = $_POST['password'];
         password($password);
         echo "INSERT INTO user (username, password) VALUES ('$username','$password')";
      }
      else {
         echo "Passwords are not equal; Double Take";//Yes Double Take is a military term
         exit();
      }

I used it like that to narrow it down. And I still do not understand the issue, are there any other issues?


[attachment deleted by admin]

Hi there everyone.  I'm really confused about this as I want to email eveyone in my DB when a new Event is created by a member.

I have a test code which I used to make sure it works and it sends to 5 email addresses (which is all of them) in the test table.  This works fine.  All members with a 0 get the mail.

So I now just took the code and changed the table name (obviously!!) and put it in my live site which has 50 members so far.  It now doesn't send any emails???  Not sure why this is as the code is exactly the same (except the table name).

$result = mysql_query("SELECT email FROM membership WHERE send_as_email = '0'");

while ($row = mysql_fetch_array($result)) {
   sendMail($row[0]);
}
mysql_free_result($result);

function sendMail($to){
$subject = 'New Event Created;
$message = "Hi there,\n
Just letting you know of a new Event that has been created.\n
Title: $title\n
Town: $town\n
Date: $date_convert\n
For more details or to attend this Event, please login \n
Many thanks\n
The  Team\n
\n
****************************************************************************\n
THIS EMAIL IS AUTOMATED.  DO NOT REPLY.\n
To turn notifications off, change the notification settings in your Profile.\n
****************************************************************************\n";
$headers = 'From: members@mysite.co.uk' . "\r\n" .
'X-Mailer: PHP/' . phpversion();

mail($to, $subject, $message, $headers);
} 

Hi folks,

I just found this group and joined up!

I have encountered a problem that I am not sure how to resolve, and I hope someone can assist.

I run this query against my MySQL database:

mysql_select_db($database_commdb, $commdb);
$query_rsEmailAddress = "SELECT admin_email FROM tbl_admins WHERE admin_id = 1";
$rsEmailAddress = mysql_query($query_rsEmailAddress, $commdb) or die(mysql_error());
$row_rsEmailAddress = mysql_fetch_assoc($rsEmailAddress);
$totalRows_rsEmailAddress = mysql_num_rows($rsEmailAddress);

...and want to use the result to populate the "mail to" field for my response form. (I'm doing this to avoid having my email address posted in a page to be skimmed.) I presently use this:

$to = rsEmailAddress['admin_email'];

I do some empty fields checking before submitting the form. However, when I click on submit, my form, tells me I have empty fields and will not process when there are NO empty fields.  HOWEVER, if I hard-code my email address in the variable "$to" all is well, the form processes correctly, I get the email, etc...

So I suspect the problem lies somewhere in the way I have constructed the $to variable. I have scratched my head till I am going bald(er) and my scalp is bleeding!!! HELP!! Please!!