Creating a search form in PHP duplicate

I am working on a function where the specifications are to use a search form to search through a packaging database. I wanted to create a search form where users can search using different searches.

Creation of database:

 <body>
  <?php
     $con = mysql_connect("localhost", "root", "");
      if (!$con)
     {
      die('Could not connect: ' . mysql_error());
     }
      if (mysql_query("CREATE DATABASE db_test", $con))
     {
  echo "Database created";
     }
      else
    {
  echo "Error creating database: " . mysql_error();
    }


  mysql_select_db("db_test", $con);
  $sql = "CREATE TABLE Liam
   ( 
  Code varchar (30),
  Description varchar (30),
  Category varchar (30),
  CutSize varchar (30),
   )";

 mysql_query($sql, $con);
     mysql_close($con);
 ?> 
   </body>

HTML search form page:

<body>

      <form action="form.php" method="post">
        Search: <input type="text" name="term" /><br />
      <input type="submit" name="submit" value="Submit" />
      </form>

</body>

The PHP code I am using to attempt to gather info from the database (I have rewritten this a few times, this code also displays the "table.liam doesn't exist")

  <body>
   <?php
 $con = mysql_connect ("localhost", "root", "");
 mysql_select_db ("db_test", $con);

  if (!$con)
    { 
    die ("Could not connect: " . mysql_error());
    } 
    $sql = mysql_query("SELECT * FROM Liam WHERE Description LIKE '%term%'") or die
        (mysql_error());

       while ($row = mysql_fetch_array($sql)){
    echo 'Primary key: ' .$row['PRIMARYKEY'];
    echo '<br /> Code: ' .$row['Code'];
    echo '<br /> Description: '.$row['Description'];
    echo '<br /> Category: '.$row['Category'];
    echo '<br /> Cut Size: '.$row['CutSize']; 
  }
 
  mysql_close($con)
   ?>
     </body>

Can someone give me some idea or a solution to do this?