php - ID not valid on Edit button code -


i have code displays data stored in database. want make edit button or link allows me edit data (i have table displays data in columns , rows).

snippet of edit code

// once saved, redirect view page  header("location: insertchart.php");   }  }  else  {  // if 'id' isn't valid, display error  echo 'error!123';  }  }  else  // if form hasn't been submitted, data db , display form  {   // 'id' value url (if exists), making sure valid (checing numeric/larger 0)  if (isset($_get['newid']) && is_numeric($_get['newid']) && $_get['newid'] > 0)  {  // query db  $newid = $_get['newid'];  $result = mysql_query("select * charts newid=$newid")  or die(mysql_error());   $row = mysql_fetch_array($result);   // check 'id' matches row in databse  if($row)  {   // data db  $charts_date = $row['charts_date'];  $charts_retrace = $row['charts_retrace']; $charts_start_of_swing_trade = $row['charts_start_of_swing_trade']; $charts_end_of_swing_trade = $row['charts_end_of_swing_trade']; $charts_bullflag = $row['charts_bullflag']; $charts_bearflag = $row['charts_bearflag']; $charts_ema_crossover = $row['charts_ema_crossover']; $charts_trading_instrument = $row['charts_trading_instrument'];   // show form  renderform($newid, $charts_date, $charts_retrace, $charts_start_of_swing_trade, $charts_end_of_swing_trade, $charts_bullflag, $charts_bearflag, $charts_ema_crossover, $charts_trading_instrument, '');  }  else  // if no match, display result  {  echo "no results!";  }  }  else  // if 'id' in url isn't valid, or if there no 'id' value, display error  {  echo 'error!345';  }  } ?>

i error!345 when click on edit button know quering database fine have no idea why telling me there error id.

as requested, here table code looks displays edit link:

$result = $conn->query($sql);  if($result && $result->num_rows > 0) {      // output data of each row  echo "<h2>what inside database?</h2><br><br>     <table style='border: solid #000000 1px;border-collapse:collapse;'>       <tr>         <td style='border: solid #000000 1px;padding:15px;'><strong><u>chart</u></strong></td>         <td style='border: solid #000000 1px;padding:15px;'><strong><u>date</u></strong></td>         <td style='border: solid #000000 1px;padding:15px;'><strong><u>retrace</u></strong></td>         <td style='border: solid #000000 1px;padding:15px;'><strong><u>start of swing trade</u></strong></td>         <td style='border: solid #000000 1px;padding:15px;'><strong><u>end of swing trade</u></strong></td>         <td style='border: solid #000000 1px;padding:15px;'><strong><u>bull flag</u></strong></td>         <td style='border: solid #000000 1px;padding:15px;'><strong><u>bear flag</u></strong></td>         <td style='border: solid #000000 1px;padding:15px;'><strong><u>ema crossover</u></strong></td>         <td style='border: solid #000000 1px;padding:15px;'><strong><u>trading instrument</u></strong></td>       </tr>";      while ($row=mysqli_fetch_array($result)) {          echo  "<tr><td style='border: solid #000000 1px;'><a href=" . $row["charts_url"]. "><img src=". $row["charts_url"]. " width='200px'></a></td>";          echo  "<td style='border: solid #000000 1px;'>" . $row["charts_date"]. "<br>"; echo "<a href='edit.php?id=" . $row['newid'] . "'>edit</a></td>";          echo  "<td style='border: solid #000000 1px;'>" . $row["charts_retrace"]. "</td>";          echo  "<td style='border: solid #000000 1px;'>" . $row["charts_start_of_swing_trade"]. "</td>";          echo  "<td style='border: solid #000000 1px;'>" . $row["charts_end_of_swing_trade"]. "</td>";          echo  "<td style='border: solid #000000 1px;'>" . $row["charts_bullflag"]. "</td>";          echo  "<td style='border: solid #000000 1px;'>" . $row["charts_bearflag"]. "</td>";          echo  "<td style='border: solid #000000 1px;'>" . $row["charts_ema_crossover"]. "</td>";          echo  "<td style='border: solid #000000 1px;'>" . $row["charts_trading_instrument"]. "</td></tr>";      }       echo "</table>";  } else {      echo "0 results";  }

the edit code underneath charts_date cell.


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