php - Inserting values from mysql_fetch_assoc into form input -

i have som problem writing table. connect table wanted , information output correctly. input correctedby, , checkboxes saving want. dont know how write mysql_fetch_assoc table have kode;

    <?php session_start(); $_session['mypassword']="myusername"; echo "logged in as:<br>"  .$_session['myusername'];  include "header.inc.php";    include "funksjoner.inc.php"; //in file connetion server     $connection= kobletil(); //trenger ikke oppgi databasenavn  //steg 2:  sql-query $sql  = "select * oppgave  modulid=1 , resultat null order rand() limit 1";   $result = mysql_query($sql, $connection);  echo "<hr>"; while ($nextrow= mysql_fetch_assoc($result)){     echo "answer: " . $nextrow['answer'];     echo "<br>modulid: " . $nextrow['modulid'];         echo "<br>student: " . $nextrow['studentid'];         echo "<br>"; }  echo '<form name="input" action="tilretting.php" method="get">'; echo'<input type="text" name="correctedby" value="'.$_session['myusername'].'">'; echo 'not approved<input type="checkbox" name="resultat" value="0">'; echo 'approved<input type="checkbox" name="resultat" value="1">'; echo '<input type="text" name="studentid" value="dont know how write correct here">'; echo '<input class="levermodulknapp" type="submit" name="lever1" value="lever modul 1">'; echo  "</form>"; echo "<hr>"; ?> 

how can form value mysql_fetch_assoc form? mysql_fetch_assoc right thing use? gratefull tip!

    $result = mysql_query($sql, $connection);  echo "<hr>"; while ($nextrow= mysql_fetch_assoc($result)){     echo "answer: " . $nextrow['answer'];     echo "<br>modulid: " . $nextrow['modulid'];         echo "<br>student: " . $nextrow['studentid'];         echo "<br>";  echo '<form name="input" action="tilretting.php" method="get">';     echo'<input type="text" name="correctedby" value="'.$_session['myusername'].'">';     echo 'not approved<input type="checkbox" name="resultat" value="0">';     echo 'approved<input type="checkbox" name="resultat" value="1">';     echo '<input type="text" name="studentid" value="'.$nextrow['columnname'].'">';     echo '<input class="levermodulknapp" type="submit" name="lever1" value="lever modul 1">';     echo  "</form>";     echo "<hr>"; } 

or

$data = null; $result = mysql_query($sql, $connection);  echo "<hr>"; while ($nextrow= mysql_fetch_assoc($result)){     echo "answer: " . $nextrow['answer'];     echo "<br>modulid: " . $nextrow['modulid'];         echo "<br>student: " . $nextrow['studentid'];         echo "<br>";      $data = $nextrow['colunmname']; }   echo '<form name="input" action="tilretting.php" method="get">';     echo'<input type="text" name="correctedby" value="'.$_session['myusername'].'">';     echo 'not approved<input type="checkbox" name="resultat" value="0">';     echo 'approved<input type="checkbox" name="resultat" value="1">';     echo '<input type="text" name="studentid" value="'.$data.'">';     echo '<input class="levermodulknapp" type="submit" name="lever1" value="lever modul 1">';     echo  "</form>";     echo "<hr>"; } ?>