Aiuto con chapta anti spam

**angelo85ct** · 08-12-2009, 10:36

ciao ragazzi, devo inserire un codice anti apa, ma non riesco a farmi stamapare le lettere, come faccio?

CaptchaSecurityImages.php

Codice PHP:


 <?php

session_start();







class CaptchaSecurityImages {



    var $font = 'monofont.ttf';



    function generateCode($characters) {

        /* list all possible characters, similar looking characters and vowels have been removed */

        $possible = '23456789bcdfghjkmnpqrstvwxyz';

        $code = '';

        $i = 0;

        while ($i < $characters) { 

            $code .= substr($possible, mt_rand(0, strlen($possible)-1), 1);

            $i++;

        }

        return $code;

    }



    function CaptchaSecurityImages($width='120',$height='40',$characters='6') {

        $code = $this->generateCode($characters);

        /* font size will be 75% of the image height */

        $font_size = $height * 0.75;

        $image = @imagecreate($width, $height) or die('Cannot initialize new GD image stream');

        /* set the colours */

        $background_color = imagecolorallocate($image, 255, 255, 255);

        $text_color = imagecolorallocate($image, 20, 40, 100);

        $noise_color = imagecolorallocate($image, 100, 120, 180);

        /* generate random dots in background */

        for( $i=0; $i<($width*$height)/3; $i++ ) {

            imagefilledellipse($image, mt_rand(0,$width), mt_rand(0,$height), 1, 1, $noise_color);

        }

        /* generate random lines in background */

        for( $i=0; $i<($width*$height)/150; $i++ ) {

            imageline($image, mt_rand(0,$width), mt_rand(0,$height), mt_rand(0,$width), mt_rand(0,$height), $noise_color);

        }

        /* create textbox and add text */

        $textbox = imagettfbbox($font_size, 0, $this->font, $code) or die('Error in imagettfbbox function');

        $x = ($width - $textbox[4])/2;

        $y = ($height - $textbox[5])/2;

        imagettftext($image, $font_size, 0, $x, $y, $text_color, $this->font , $code) or die('Error in imagettftext function');

        /* output captcha image to browser */

        header('Content-Type: image/jpeg');

        imagejpeg($image);

        imagedestroy($image);

        $_SESSION['security_code'] = $code;

    }



}



$width = isset($_GET['width']) ? $_GET['width'] : '120';

$height = isset($_GET['height']) ? $_GET['height'] : '40';

$characters = isset($_GET['characters']) && $_GET['characters'] > 1 ? $_GET['characters'] : '6';



$captcha = new CaptchaSecurityImages($width,$height,$characters);



?>

questo è il codice del mio form

Codice PHP:


<?php

if(isSet($_GET["upload"])){

    if($_GET["upload"]==1){

    if ($_POST['send']){







if ($_SESSION['security_code'] == $_POST['security_code']){



echo 'Il codice antispam è giusto!';







//RISULTATO POSITIVO





        $testo=$_SERVER['QUERY_STRING'];

        $stringa = str_replace("&upload=1", " ", $testo);

        $stringa1 = str_replace("page=49?", " ", $stringa);

        $prv = @mysql_query("SELECT prov FROM provincia WHERE id_prov=$stringa1 ");

        $prv1 = mysql_fetch_array($prv);

        $provincia = ucfirst($prv1[0]);

        

        $tipologia="BedandBreakfast";

        $tipologia1="i bed and breakfast";



        //include("contattixprovincia.php"); 

} else {



echo 'Il codice antispam che hai inserito è errato!';



}



}?>

<?php }} else { ?>





<?php 

    $testo= $_SERVER['QUERY_STRING']; 

    $stringa1 = str_replace("page=49?", " ", $testo);

    $prv = @mysql_query("SELECT prov FROM provincia WHERE id_prov=$stringa1 ");

    $prv1 = mysql_fetch_array($prv); ?>

        

                <div class="boxed">

                <h2 class="title">Contatta tutti i bed and breakfast della provincia di <?php echo ucfirst($prv1[0]);?></h2>

                </div>        




<?php $ip = $_SERVER['REMOTE_ADDR']; ?>

<form name="modulo" method="POST" action="index.php?<?php echo $_SERVER['QUERY_STRING'] ?>&amp;upload=1" onSubmit="return formCheck(this)">

<input name="ip" type="hidden" value="<?php echo $ip; ?>" />

      <table border="0" align="left">

        <tr>

          <td width="278">Cognome Nome</td>

          <td width="712"><input name="nome" type="text" size="40" /></td>

        </tr>

        <tr>

          <td>Via</td>

            <td><input name="via" type="text" size="40" /></td>

          </tr>

        <tr>

          <td>Citt&agrave;</td>

          <td><input name="citta" type="text" size="40" /></td>

        </tr>

        <tr>

          <td>Provincia</td>

          <td><select name="provincia" size="1">

                 <option selected="" value="">La tua provincia</option>

              <option value="AG">Agrigento</option>

              <option value="AL">Alessandria</option>

              <option value="AN">Ancona</option>

              <option value="AO">Aosta</option>

              <option value="AQ">Aquila</option>

              <option value="AR">Arezzo</option>

              <option value="AP">Ascoli Piceno</option>

              <option value="AT">Asti</option>

              <option value="AV">Avellino</option>

              <option value="BA">Bari</option>

              <option value="BL">Belluno</option>

              <option value="BN">Benevento</option>

              <option value="BG">Bergamo</option>

              <option value="BI">Biella</option>

              <option value="BO">Bologna</option>

              <option value="BZ">Bolzano</option>

              <option value="BS">Brescia</option>

              <option value="BR">Brindisi</option>

              <option value="CA">Cagliari</option>

              <option value="CL">Caltanissetta</option>

              <option value="CB">Campobasso</option>

              <option value="CE">Caserta</option>

              <option value="CT">Catania</option>

              <option value="CZ">Catanzaro</option>

              <option value="CH">Chieti</option>

              <option value="CO">Como</option>

              <option value="CS">Cosenza</option>

              <option value="CR">Cremona</option>

              <option value="KR">Crotone</option>

              <option value="CN">Cuneo</option>

              <option value="EN">Enna</option>

              <option value="FE">Ferrara</option>

              <option value="FI">Firenze</option>

              <option value="FG">Foggia</option>

              <option value="FC">Forlì e Cesena</option>

              <option value="FR">Frosinone</option>

              <option value="GE">Genova</option>

              <option value="GO">Gorizia</option>

              <option value="GR">Grosseto</option>

              <option value="IM">Imperia</option>

              <option value="IS">Isernia</option>

              <option value="SP">La Spezia</option>

              <option value="LT">Latina</option>

              <option value="LE">Lecce</option>

              <option value="LC">Lecco</option>

              <option value="LI">Livorno</option>

              <option value="LO">Lodi</option>

              <option value="LU">Lucca</option>

              <option value="MC">Macerata</option>

              <option value="MN">Mantova</option>

              <option value="MS">Massa-Carrara</option>

              <option value="MT">Matera</option>

              <option value="ME">Messina</option>

              <option value="MI">Milano</option>

              <option value="MO">Modena</option>

              <option value="NA">Napoli</option>

              <option value="NO">Novara</option>

              <option value="NU">Nuoro</option>

              <option value="OR">Oristano</option>

              <option value="PD">Padova</option>

              <option value="PA">Palermo</option>

              <option value="PR">Parma</option>

              <option value="PV">Pavia</option>

              <option value="PG">Perugia</option>

              <option value="PU">Pesaro e Urbino</option>

              <option value="PE">Pescara</option>

              <option value="PC">Piacenza</option>

              <option value="PI">Pisa</option>

              <option value="PT">Pistoia</option>

              <option value="PN">Pordenone</option>

              <option value="PZ">Potenza</option>

              <option value="PO">Prato</option>

              <option value="RG">Ragusa</option>

              <option value="RA">Ravenna</option>

              <option value="RC">Reggio Calabria</option>

              <option value="RE">Reggio Emilia</option>

              <option value="RI">Rieti</option>

              <option value="RN">Rimini</option>

              <option value="RM">Roma</option>

              <option value="RO">Rovigo</option>

              <option value="SA">Salerno</option>

              <option value="SS">Sassari</option>

              <option value="SV">Savona</option>

              <option value="SI">Siena</option>

              <option value="SR">Siracusa</option>

              <option value="SO">Sondrio</option>

              <option value="TA">Taranto</option>

              <option value="TE">Teramo</option>

              <option value="TR">Terni</option>

              <option value="TO">Torino</option>

              <option value="TP">Trapani</option>

              <option value="TN">Trento</option>

              <option value="TV">Treviso</option>

              <option value="TS">Trieste</option>

              <option value="UD">Udine</option>

              <option value="VA">Varese</option>

              <option value="VE">Venezia</option>

              <option value="VB">Verbano-Cusio-Ossola</option>

              <option value="VC">Vercelli</option>

              <option value="VR">Verona</option>

              <option value="VV">Vibo Valentia</option>

              <option value="VI">Vicenza</option>

              <option value="VT">Viterbo</option>

              <option value="ESTERO">Estero</option>

            </select></td>

        </tr>

        <tr>

          <td>Telefono</td>

          <td><input name="telefono" type="text" size="25" /></td>

        </tr>

        <tr>

          <td>Email</td>

            <td><input type="text" name="mail" size="25" onBlur="return ControllaMail()"></td>

          </tr>

  <tr>

    <td width="278">Dal:</td>

    <td width="712"><input type="text" name="data1" id="sel3" size="8" readonly=""><input type="reset" value="Data" title="Seleziona la data"

onclick="return showCalendar('sel3', '%d/%m/%Y');"></td>

  </tr>

  <tr>

    <td>Al:</td>

    <td><input type="text" name="data2" id="sel4" size="8" readonly=""><input type="reset" value="Data" title="Seleziona la data"

onclick="return showCalendar('sel4', '%d/%m/%Y');"></td>

  </tr>    

      <tr>

          <td>Numero posti:</td>

            <td><input type="text" name="posti" size="25" ></td>

          </tr>

        <tr>

          <td>Messaggio</td>

            <td><textarea name="messaggio" cols="30" rows="4" tabindex="10"></textarea></td>

          </tr>

              <tr>

          <td align="center" colspan="2">Inviando la richiesta dichiaro di aver letto [url="javascript:centerPopUp1( 'informativa.php', 'popup', 550, 430)"] l'informativa[/url] ex art. 13 dlg 196/03 e di accettare i termini in essa  esposti. Acconsento quindi al trattamento dei miei dati.

            
</td>

        </tr>

              <tr>

                <td colspan="2" align="center">[img]CaptchaSecurityImages.php?width=100&height=40&characters=5[/img]


        <label for="security_code">Security Code: </label><input id="security_code" name="security_code" type="text" />
</td>

        </tr>

              <tr>

                <td colspan="2" align="center"></td>

        </tr>

        <tr>

          <td colspan="2" align="center"><input name="submit" type="submit" title="Invia mail" value="Invia richiesta informazioni" ></td>

          </tr>

  </table>

</form>





<?php }?>

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