php - Warning function mysql_query() and mysql_fetch_array() using TCPDF -

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i'm trying print data mysql these error :

warning: mysql_query() expects parameter 1 string, resource given in ..  warning: mysql_fetch_array() expects parameter 1 resource, null given in ..  tcpdf error: data has been output, can't send pdf file

i have learn these following links still warning:

this code:

    $con=mysql_connect('localhost','root','','bkd_rev');     $sql = 'select * tbl';                            $result = mysql_query($con,$sql);      if($result === false) {         die(mysql_error());     }      while($row = mysql_fetch_array($result))     {                     $id       = $row['id'];                     $nam      = $row['name'];                                $tbl    .= '<tr>                  <td>'.$id.'</td><td>'.$nam.'</td><td>                 </tr>';     }

the right syntax mysql_query opposite of your. documentation

mixed mysql_query ( string $query [, resource $link_identifier = null ] )

so need change to

$result = mysql_query($sql,$con);

since connection link not required if use database connection migh not use it

$result = mysql_query($sql);

you might need select database after connection

bool mysql_select_db ( string $database_name [, resource $link_identifier = null ] )

as side note advise switch either pdo or mysqli since mysql_* api deprecated , no longer mantained


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