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Asked: 2026-06-09T20:12:15+00:00

I have a php page that connects to a mysql database. I know that

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I have a php page that connects to a mysql database. I know that the connection to the database is good because I have a php code that displays info from the database onto the webpage. When I try to insert new data into the databse, the page refreshes and the data is not inserted. I have checked to insure that the insert into command has the correct values. 

      <?php 

    if (isset($_POST['User_Name'])) 
        {

            include "connect_to_mysql.php";

            $name = mysql_real_escape_string($_POST["Name"]);

            $sql = mysql_query("SELECT TestID FROM test WHERE Name='$name' LIMIT 1")or die (mysql_error());
            $productMatch = mysql_num_rows($sql); 

            if ($productMatch > 0) 
                {
                    echo 'Sorry you tried to place a duplicate "User Account" into the system, <a href="index.php">click here</a>';
                    exit();
                }
                else
                {

                    $sql = mysql_query("INSERT INTO test (TestID,Name) 
                        VALUES('', '$name')") or die (mysql_error());
                     $uid = mysql_insert_id();

                    header("location: index.php"); 
                    exit();
                }
        }
?>
<?php 

    include "connect_to_mysql.php";
    $User_list = "";
    $sql = mysql_query("SELECT * FROM test");
    $UserCount = mysql_num_rows($sql); 
    if ($UserCount > 0) 
        {
            while($row = mysql_fetch_array($sql))
                { 
                         $id = $row["TestID"];
                         $name = $row["Name"];

                         $User_list .= "Users ID: $id - <strong>$name</strong>&nbsp; &nbsp; &nbsp;<br />";
                }
        } 
        else 
        {
            $User_list = "You have no users listed in the database.";
        }
?>
<!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>Untitled Document</title>
</head>

<body>
<div align="center" id="mainWrapper">
  <div id="pageContent"><br />
    <div align="right" style="margin-right:32px;"><a href="index.php#UserForm">+ Add New User</a></div>
<div align="left" style="margin-left:24px;">
      <h2>User list</h2>
      <?php echo $User_list; ?>
    </div>
    <hr />
    <a name="UserForm" id="UserForm"></a>
    <h3>
    &darr; Add New User Form &darr;
    </h3>
    <form action="index.php" enctype="multipart/form-data" name="myForm" id="myform" method="post">
    <table width="90%" border="0" cellspacing="0" cellpadding="6">
      <tr>
        <td width="20%" align="right">Name</td>
        <td width="80%"><label>
          <input name="name" type="text" id="name" size="50" />
        </label></td>
      </tr> 
      <tr>
        <td>&nbsp;</td>
        <td><label>
          <input type="submit" name="button" id="button" value="Add This Name Now" />
        </label></td>
      </tr>
    </table>
    </form>
    <br />
  <br />
  </div>
</div>
</body>
</html>
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1 Answer

  1. Editorial Team

    I see two problems right away (there may be more). First, PHP array keys are case sensitive. You are accessing $_POST['Name'] but your form input is name. Second, you are testing for $_POST['User_Name'] which doesn’t appear to exist anywhere:

    // Look for name in the $_POST
if (isset($_POST['name'])) 
{
    include "connect_to_mysql.php";
    // name is case-sensitive
    $name = mysql_real_escape_string($_POST["name"]);

    Later, if your table has an AUTO_INCREMENT id on TestID, you should either omit it or insert NULL in the insert statment:

    // Don't include TestID if it is AUTO_INCREMENT. That will happen automatically
$sql = mysql_query("INSERT INTO test (Name) 
                    VALUES('$name')") or die (mysql_error());
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