Incorrect mysql_query

Hello, sorry if a similar post was in the past, but I would like to ask for an advice.
I have a problem with sql query (I think so):
Firstly, I'm passing two variables in URL:
http://localhost/e-pazymiu_knygele/mokinio_informacija.php?klase_id=1&mokinio_id=100

Secondly, I'm retreiving necessary information from the table:
$mokiniai_query= "SELECT mokinio_id, mok_vard, mok_pavard FROM mokiniai WHERE mokinio_id=' " . $_GET['mokinio_id'] . " ' ";
$mokiniai_result=mysql_query($mokiniai_query, $link) or die(mysql_error());

...
while($mokiniai_row = mysql_fetch_array($mokiniai_result)){
$mokiniai_flag =1;
$mokinio_vardas[]=$mokiniai_row['mok_vard'];
$mokinio_pavarde[]=$mokiniai_row['mok_pavard'];
$dydis[]=$mokiniai_row['mok_pavard'];
}

Lastly, I'm printing retreived information in a table:

$i=0;
$mokiniai_lentele='';
while($i<sizeof($dydis)){
$mokiniai_lentele .=<<<EOD
<tr>
<td width='41%' valign='top'>$mokinio_vardas</td>
<td width='41%' valign='top'>$mokinio_pavarde</td>
</tr>
EOD;
$i++;
}

The problem is I'm getting Array word in a place of $mokinio_vardas and $mokinio_pavarde.

 

you should declare both array first. then

Here 'i' is an incremental value.

 

The problem was, that a browser didn't know what name to write, because I forgoted to write an index of the array.
<td width='41%' valign='top'>$mokinio_vardas</td>
<td width='41%' valign='top'>$mokinio_pavarde</td>

<td width='41%' valign='top'>$mokinio_vardas[$i]</td>
<td width='41%' valign='top'>$mokinio_pavarde[$i]</td>

Thanks for the directing advice