in un form evitare una parola

[marcobix]

Ho un problemino...

devo evitare che gli utenti possano inviare parole non consentite per intenderci non voglio che inseriscano la parola "uccello"



Mi serve proprio uno script in newpost.php che non faccia inserire quella parola una volta cliccato su invia e mi dica...spiacente..lei non può inserire la parola.

questo è il newpost:

<?
// Ultimate PHP Board
// Author: Tim Hoeppner aka RR_Pilot, FixITguy
// Website: [url]http://www.webrc.ca/php[/url]
// Version: 1.0
// Using textdb Version: 1.0

include "func.inc.php";
if($t_id == "") {
    $w_forum = get($id, "./db/forum");
    $where = "[b]>[/b]  [url='viewforum.php?id=$id']$w_forum[forum][/url] [b]>[/b] Nuovo Post";
} else {
    $w_forum = get($id, "./db/forum");
    $upb["def"] = "./db/p_forum";
    $w_topic = get($t_id, "./db/$id");
    $where = "[b]>[/b] [url='viewforum.php?id=$id']$w_forum[forum][/url] [b]>[/b] [url='viewtopic.php?id=$id&t_id=$t_id']$w_topic[subject][/url] [b]>[/b] Rispondi al Post";
    $wherepost = "[b]>[/b] [url='viewtopic.php?id=$id&t_id=$t_id']$w_topic[subject][/url] [b]>[/b] Rispondi al Post";
}

include "header.php";
if(isset($HTTP_GET_VARS["id"])) {
    if(is_numeric($HTTP_GET_VARS["id"])) {
        $id = $HTTP_GET_VARS["id"];
    } else {
        $id = "";
        echo "Invalid ID";
        include "footer.php";
        exit;
    }
}

if(isset($HTTP_GET_VARS["t_id"])) {
    if($HTTP_GET_VARS["t_id"] != "") {
    if(is_numeric($HTTP_GET_VARS["t_id"])) {
        $t_id = $HTTP_GET_VARS["t_id"];
    } else {
        $t_id = "";
        echo "Invalid Topic ID";
        include "footer.php";
        exit;
    }
    }
}

if (!isset($a))
{
$a = 0;
}

if (@!is_logged_in($user_env, $pass_env, $power_env, $id_env))
{
    echo "Please Login.";
} else {
       $closedforums = file("./db/closedforums.dat");
       foreach($closedforums as $closedforum)
       {
            settype($closedforum, "integer");
            if($closedforum == $id)
            {    
                if($power_env < 3)
                {
                    echo "questo forum è di sola lettura, non puoi postare";
                    exit;
                }
            }
        }
    if ($a == 1)
    {

        if ($t == 1)
        {
            
            if(trim($subject) == "") { 
die("You must enter a subject!"); 
}            
            if(!isset($HTTP_POST_VARS["icon"])) {
                echo "Bisogna inviare attraverso il forum.";
                include "footer.php";
                exit;
            }
            if($icon == "") {
                $icon = "icon1.gif";
            }

//FILE UPLOAD BEGIN
$uploadText = "";
if(trim($file_name) != "") {
    $jpg = "image/pjpeg";
    $gif = "image/gif";
    $zip = "application/x-zip-compressed";
    $txt = "text/plain";



    if ($file_type == $txt || $file_type == $jpg || $file_type == $gif || $file_type == $zip)
    {

        if ($file_name == '')
        {
  $uploadText = "";
        } else {


  if ($file_size >= (1024 * $fileupload_size))
        {
  $uploadText = "";
        } else {

            // successful file upload
   if (copy (@$file, "$fileupload_location/$file_name")) {
  $uploadText = "[img]images/attachment.gif[/img] Attachment: [url]$fileupload_location/".$file_name."[/url]
  
  ";
        } else {
  $uploadText = "";

        }
         }
        }
        unlink ($file);
    } else {$uploadText = ""; }
    }

$message = $uploadText.$message;
//END
            $message = format_field($message);
            
            $subject = str_replace("[Sticky Note]", "Sticky Note", $subject);
            if(isset($HTTP_POST_VARS["stick"])) {
                $subject .= " [Sticky Note]";
            }
            
            $t_id = add("$icon<~>$subject<~>$u_name<~>0<~>".date("M d, Y g:i:s a")."<~>$u_name<~>$id_env", "./db/$id", "no");
            add_down("$icon<~>$subject<~>$u_name<~>".date("M d, Y g:i:s a")."<~>$message<~>$id_env", "./db/$id/$t_id", "yes");

            $r = listall("./db/forum");
            $b = count($r);
            $field = "id";
            $q = $id;
            for($i=0;$i<=$b;$i++)
            {
                $stuff = def($r[$i], "./db/forum");
                if(@$stuff[$field] == $q)
                {
                     $rec = $r[$i];
                    break;
                }
            }
            $rec = def($rec, "./db/forum");
            @settype($rec[topics], "double");
            @settype($rec[posts], "double");
            @$rec[topics] = $rec[topics]+1;
            @$rec[posts] = $rec[posts]+1;
            @$rec[last_post] = $t_id;
            @$rec[user] = $u_name;
            @$rec[user_id] = $id_env;
            $rec = implode("<~>", $rec);
            edit($id, $rec, "./db/forum", "no");
            /*beginner post update in profile*/
            $u = get($id_env, "./db/users");
            @settype($u[posts], "double");
            @$u[posts] = $u[posts]+1;
            $u = implode("<~>", $u);
            edit($id_env, $u, "./db/users", "no");
            echo "<meta http-equiv='refresh' content='1;URL=viewforum.php?id=$id'>";
            /* end */
            } else {
            if(!isset($HTTP_POST_VARS["icon"])) {
                echo "Bisogna inviare attraverso il forum.";
                include "footer.php";
                exit;
            }
            if (isset($t_id))
            {
       if(!is_writable("./db/$id/".$t_id.".dat")) {
           echo "Il topic è chiuso.";
           exit;
       }
            if($icon == "") {
                echo "seleziona un'icona!";
                exit;
            }

            //FILE UPLOAD BEGIN
$uploadText = "";
if(trim($file_name) != "") {
    $jpg = "image/pjpeg";
    $gif = "image/gif";
    $zip = "application/x-zip-compressed";
    $txt = "text/plain";



    if ($file_type == $txt || $file_type == $jpg || $file_type == $gif || $file_type == $zip)
    {

        if ($file_name == '')
        {
  $uploadText = "";
        } else {


  if ($file_size >= (1024 * $fileupload_size)) //50kb
        {
  $uploadText = "";
        } else {

            // successful file upload
   if (copy (@$file, "$fileupload_location/$file_name")) {
        $uploadText = "[img]images/attachment.gif[/img] Allegati: [url]$fileupload_location/".$file_name."[/url]

";
        } else {
  $uploadText = "";

        }
         }
        }
        unlink ($file);
    } else {$uploadText = ""; }
    }

$message = $uploadText.$message;
//END


    $message = format_field($message);
    add_down("$icon<~>$subject<~>$u_name<~>".date("M d, Y g:i:s a")."<~>$message<~>$id_env", "./db/$id/$t_id", "no");
                $r = listall("./db/forum");
                $b = count($r);
                $field = "id";
                $q = $id;
                for($i=0;$i<=$b;$i++)
                {
                    @$stuff = def($r[$i], "./db/forum");
                    if(@$stuff[$field] == $q)
                    {
                        $rec = $r[$i];
                        break;
                    }
                }
                $rec = def($rec, "./db/forum");
                @settype($rec[posts], "double");
                @$rec[posts] = $rec[posts]+1;
                @$rec[last_post] = $t_id;
                @$rec[user] = $u_name;
                @$rec[user_id] = $id_env;
                $rec = implode("<~>", $rec);
                edit($id, $rec, "./db/forum", "no");
    

                $r1 = listall("./db/$id");
                $b1 = count($r1);
                $field1 = "id";
                $q1 = $t_id;
                for($i1=0;$i1<=$b1;$i1++)
                {
                    $stuff1 = def($r1[$i1], "./db/p_forum");
                    if(@$stuff1[$field1] == $q1)
                    {
                        $rec1 = $r1[$i1];
                        break;
                    }
                }
                $rec1 = def($rec1, "./db/p_forum");
                @settype($rec1[replies], "double");
                @$rec1[replies] = $rec1[replies]+1;
                @$rec1[last_post] = date("M d, Y g:i:s a");
                @$rec1[user_name] = $u_name;
                if(isset($HTTP_POST_VARS["unstick"])) {
                $rec1["subject"] = str_replace("[Sticky Note]", "", $rec1["subject"]);
            }
        @$rec1[user_id] = $id_env;
                $rec1 = implode("<~>", $rec1);
                edit($t_id, $rec1, "./db/$id", "no");
            /*beginner post update in profile*/
            $u = get($id_env, "./db/users");
            @settype($u[posts], "double");
            @$u[posts] = $u[posts]+1;
            $u = implode("<~>", $u);
            edit($id_env, $u, "./db/users", "no");
            /* end */
            if($page == "") {
                $page = 1;
            }
                echo "<meta http-equiv='refresh' content='1;URL=viewtopic.php?id=$id&t_id=$t_id&page=$page'>";
            }
        }
  include "sortTopics.php";
      } else {
        if(!isset($page)) {
      $page = 1;
  }
            if($t == 1)
        {
            $tpc = "<tr><td bgcolor='$table1'><font size='$font_m' face='$font_face' color='$font_color_main'>Titolo:</font></td><td bgcolor='$table1'><input type=text name=subject size=40></td></tr>";

if(isset($power_env) && isset($user_env) && isset($pass_env) && isset($id_env))
{
if(is_logged_in($user_env, $pass_env, $power_env, $id_env) && $power_env == 3)
{
        
        $sticky = "<tr><td bgcolor='$table1'><font size='$font_m' face='$font_face' color='$font_color_main'>Messaggio in rilievo:</font></td><td bgcolor='$table1'><input type=checkbox name=stick size=40></td></tr>";
            
}
}
            
            $hed = "Nuovo Topic";
            $iframe = "";
        } else {
            $tpc = "<input type=hidden name=subject value=''>";
            if(isset($power_env) && isset($user_env) && isset($pass_env) && isset($id_env))
{
if(is_logged_in($user_env, $pass_env, $power_env, $id_env) && $power_env == 3)
{
        
        $unsticky = "<tr><td bgcolor='$table1'><font size='$font_m' face='$font_face' color='$font_color_main'>Un-Sticky:</font></td><td bgcolor='$table1'><input type=checkbox name=unstick size=40></td></tr>";
            
}
}
            $hed = "Reply";
            $iframe = "

[B]<font size='$font_m' face='$font_face' color='$font_color_main'>Rassegna Topic:
</font>[/B]
            <IFRAME SRC='viewtopic_simple.php?id=$id&t_id=$t_id&page=$page' WIDTH=$table_width_main HEIGHT='300'></IFRAME>";
        }
        $icons = message_icons();
  
  echo "

<script LANGUAGE='JavaScript'>
    <!--
    function SetSmiley(Which) {
      if (document.newentry.message.createTextRange) {
          document.newentry.message.focus();
          document.selection.createRange().duplicate().text = Which;
       } else {
          document.newentry.message.value += Which;
       }
  }
    
    
    //-->
    </SCRIPT>
    
<script language='JavaScript'>
function submitonce(theform){
if (document.all||document.getElementById){
for (i=0;i<theform.length;i++){
var tempobj=theform.elements[i]
if(tempobj.type.toLowerCase()=='submit'||tempobj.type.toLowerCase()=='reset')
tempobj.disabled=true
}
}
}
</script>

<form action='newpost.php?id=$id&a=1&t=$t&t_id=$t_id&page=$page' method=POST name='newentry' onSubmit='submitonce(this)' enctype='multipart/form-data'>";
                      
                if($t_id == "") {
    echo "$skin_tableheading";
} else {
    echo "$skin_tableheading_post";
}
                
                
      echo "<table width=$table_width_main cellspacing=1 cellpadding=3 border=0 bgcolor='$border' align='center'>
        <tr><td colspan='2' bgcolor='$header' background=$skin_images_dir/cat_top_bg.gif >[B]<font size='$font_l' face='$font_face' color='$font_color_header'>$hed</font>[/b]</td></tr>
        <tr><td bgcolor='$table1'><font size='$font_m' face='$font_face' color='$font_color_main'>User Name:</font></td><td bgcolor='$table1'><font size='$font_m' face='$font_face' color='$font_color_main'>$user_env<input type=hidden name=u_name value='$user_env'></td></tr>
        $tpc
        $sticky
        $unsticky
        <tr><td bgcolor='$table1'><font size='$font_m' face='$font_face' color='$font_color_main'>Icone Messaggio:</font></td><td bgcolor='$table1'><input type=radio name=icon value='icon1.gif' CHECKED>[img]./icon/icon1.gif[/img] $icons</td></tr>
        <tr><td bgcolor='$table1' valign='top'><font size='$font_m' face='$font_face' color='$font_color_main'>Messaggio:</font>






<center>        



</td></tr>
        <tr><td bgcolor='$table1' colspan=2><font size='$font_m' face='$font_face' color='$font_color_main'>
        Allega File:

<input type=file name='file' value='file_name' size=20>
[size="1"][b]Tipi di file validi: txt, gif, jpg, jpeg, zip.
 La grandezza massima del file è $fileupload_size Kb. Se il tuo file non risponde ai requisiti, sarà rifiutato senza avviso.[/b][/size]</font></td></tr>
        <tr><td bgcolor='$table1' colspan=2>
        <input type=submit value='Invia nuova discussione' onclick='return check_submit()'></td></tr></form></font>$skin_tablefooter

$iframe</p>";
    }
}
include "footer.php";
?>

Un piccolo aiutino che potrei dare...ma dove non riesco ad applicarlo..è al register.php quando inserisco un e-mail non valida..ma non sò se aiuta..lo script è questo:

}  

    if (!eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*$", $u_email)) {

        include "header.php";

        print "please enter a valid email!";

        include "footer.php";

        exit;

    } 

Spero mi possiate aiutare