propojení formuláře a DB

<center>
<fieldset>
<legend>Kalendář</legend>
<form action="akalendarzpracuj.php" method="post">
  <input type="hidden" name="sent" value=""/>
    <br> Datum: <select name="den">
<option value="01" selected="selected">01</option>
<option value="02">02</option><option value="03">03</option><option value="04">04</option>
<option value="05">05</option><option value="06">06</option><option value="07">07</option>
<option value="08">08</option><option value="09">09</option><option value="10">10</option>
<option value="11">11</option><option value="12">12</option><option value="13">13</option>
<option value="14">14</option><option value="15">15</option><option value="16">16</option>
<option value="17">17</option><option value="18">18</option><option value="19">19</option>
<option value="20">20</option><option value="21">21</option><option value="22">22</option>
<option value="23">23</option><option value="24">24</option><option value="25">25</option>
<option value="26">26</option><option value="27">27</option><option value="28">28</option>
<option value="29">29</option><option value="30">30</option><option value="31">31</option>
</select>.
<select name="mesic">
<option value="leden" selected="selected">leden</option>
<option value="unor">unor</option><option value="brezen">brezen</option>
<option value="duben">duben</option><option value="kveten">kveten</option>
<option value="cerven">cerven</option><option value="cervenec">cervenec</option>
<option value="srpen">srpen</option><option value="zari">zari</option>
<option value="rijen">rijen</option><option value="listopad">listopad</option>
<option value="prosinec">prosinec</option>
</select>.
<select name="rok">
<option value="2010" selected="selected">2010</option>
<option value="2011">2011</option><option value="2012">2012</option>
<option value="2013">2013</option><option value="2014">2014</option>
<option value="2015">2015</option><option value="2016">2016</option>
<option value="2017">2017</option><option value="2018">2018</option>
<option value="2019">2019</option><option value="2020">2020</option>
</select></br>
<br> Cas: <select name="hodina">
<option value="00" selected="selected">00</option>
<option value="01">01</option><option value="02">02</option>
<option value="03">03</option><option value="04">04</option>
<option value="05">05</option><option value="06">06</option>
<option value="07">07</option><option value="08">08</option>
<option value="09">09</option><option value="10">10</option>
<option value="11">11</option><option value="12">12</option>
<option value="13">13</option><option value="14">14</option>
<option value="15">15</option><option value="16">16</option>
<option value="17">17</option><option value="18">18</option>
<option value="19">19</option><option value="20">20</option>
<option value="21">21</option><option value="22">22</option>
<option value="23">23</option>
</select>:
<select name="minuta">
<option value="00" selected="selected">00</option>
<option value="15">15</option><option value="30">30</option><option value="45">45</option>
</select><br/>
    název události: <input type="text" name="nazev" maxlength="32"/><br/>
    informace: <textarea cols="50" rows="20" wrap="soft" name="info"></textarea><br/>
  <input type="submit" name="send" value="uložit"/>
</form>

<?php
ob_start();               // cachujeme vystup
  if(isset($_POST['sent'])){      // pokud byl odeslan formular pokracuj timto
    $den=trim($_POST['den']);
    $mesic=trim($_POST['mesic']);
    $rok=trim($_POST['rok']);
    $hodina=trim($_POST['hodina']);
    $minuta=trim($_POST['minuta']);
    $nazev=trim($_POST['nazev']);
    $info=trim($_POST['info']);
    if($den=="" or $mesic=="" or $rok=="" or $hodina=="" or $minuta=="" or $nazev=="" or $info==""){ // pokud nebylo vyplněno něco z toho, co je povinné, dáme vědět a skript ukončíme
      echo "Nebyly vyplněny všechny povinné údaje!";
    }else{              // povinné udaje vyplněny vsechny
      require "db1.php";     // pripojime se k databazi
             $VlozData=mysql_query(" INSERT INTO kalendar (`den`,`mesic`,`rok`,`hodina`,`minuta`,`nazev`,`info`)
                      VALUES
                    ('$den', '$mesic', '$rok', '$hodina', '$minuta', '$nazev', '$info',)  ") or die (mysql_error());
        if($VlozData){
          echo "Data byla uložena";
        }
      }

    }
  }else{
    echo "Nebyl odeslán formulář";
  }
// pokud pouzijete HEADER LOCATION tak by pred nim nemelo byt zadne platne ECHO
echo "<a href='index.php'>index</a>";
// samozrejme zde muze byt presmerovani na jinou stranku pomoci
// header ("Location: index.php");
ob_end_flush();
?>