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Creare un modulo di contatti con php

postato da Administrator, in php, tutorials.

In questo articolo vedremo come creare un modulo contatti in php che invia i dati via email. Le informazioni che vogliamo memorizzare sono: nome, email e messaggio.

Creaimo il modulo:

<form method="post" action="invia.php"><INPUT NAME="op" TYPE="hidden" VALUE="send">
<table>
    <tr>
      <td><p>Nome:</p></td>
      <td>
        <input name="name" type="text" size="30" maxlength="150">
      </td>
    </tr>
      <tr>
      <td><p>E-mail:</p></td>
      <td>
        <input name="email" type="text" size="30" maxlength="150">
      </td>
    </tr>
    <tr>
      <td valign="top"><p>Messaggio:</p></td>
      <td><textarea name="message" cols="40" rows="6"></textarea></td>
    </tr>
    <tr><td></td> <td><input name="submit" type="submit" value="Invia"></td></tr>
</table>
</form>

Quello che adesso serve è il file invia.php che recupera i dati e li invia per email:

<?php
if (isset($_POST["op"]) && ($_POST["op"]=="send")) {
/******** START OF CONFIG SECTION *******/
$sendto = "";
$subject = "Website Contact Enquiry";
// Select if you want to check form for standard spam text
$SpamCheck = "Y"; // Y or N
$SpamReplaceText = "*content removed*";
// Error message prited if spam form attack found
$SpamErrorMessage = "<p align=\"center\"><font color=\"red\">Malicious code content detected.
</font><br><b>Your IP Number of <b>".getenv("REMOTE_ADDR")."</b> has been logged.</b></p>";
/******** END OF CONFIG SECTION *******/
$name = $HTTP_POST_VARS['name'];
$email = $HTTP_POST_VARS['email'];
$message = $HTTP_POST_VARS['message'];
$headers = "From: $email\n";
$headers . "MIME-Version: 1.0\n"
                   . "Content-Transfer-Encoding: 7bit\n"
                   . "Content-type: text/html; charset = \"iso-8859-1\";\n\n";
if ($SpamCheck == "Y") {
// Check for Website URL's in the form input boxes as if we block website URLs from the form,
// then this will stop the spammers wastignt ime sending emails
if (preg_match("/http/i", "$name")) {echo "$SpamErrorMessage"; exit();}
if (preg_match("/http/i", "$email")) {echo "$SpamErrorMessage"; exit();}
if (preg_match("/http/i", "$message")) {echo "$SpamErrorMessage"; exit();}
// Patterm match search to strip out the invalid charcaters, this prevents the mail injection spammer
$pattern = '/(;|\||`|>|<|&|^|"|'."\n|\r|'".'|{|}|[|]|\)|\()/i'; // build the pattern match string
$name = preg_replace($pattern, "", $name);
$email = preg_replace($pattern, "", $email);
$message = preg_replace($pattern, "", $message);
// Check for the injected headers from the spammer attempt
// This will replace the injection attempt text with the string you have set in the above config section
$find = array("/bcc\:/i","/Content\-Type\:/i","/cc\:/i","/to\:/i");
$email = preg_replace($find, "$SpamReplaceText", $email);
$name = preg_replace($find, "$SpamReplaceText", $name);
$message = preg_replace($find, "$SpamReplaceText", $message);
// Check to see if the fields contain any content we want to ban
if(stristr($name, $SpamReplaceText) !== FALSE) {echo "$SpamErrorMessage"; exit();}
if(stristr($message, $SpamReplaceText) !== FALSE) {echo "$SpamErrorMessage"; exit();}
// Do a check on the send email and subject text
if(stristr($sendto, $SpamReplaceText) !== FALSE) {echo "$SpamErrorMessage"; exit();}
if(stristr($subject, $SpamReplaceText) !== FALSE) {echo "$SpamErrorMessage"; exit();}
}
// Build the email body text
$emailcontent = "
-----------------------------------------------------------------------------
   WEBSITE CONTACT ENQUIRY
-----------------------------------------------------------------------------
Name: $name
Email: $email
Message: $message
_______________________________________
End of Email
";
// Check the email address enmtered matches the standard email address format
if (!eregi("^[A-Z0-9._%-]+@[A-Z0-9._%-]+\.[A-Z]{2,6}$", $email)) {
echo "<p>It appears you entered an invalid email address</p><p><a href='javascript: history.go(-1)'>Click here to go back</a>.</p>";
}
elseif (!trim($name)) {
echo "<p>Please go back and enter a Name</p><p><a href='javascript: history.go(-1)'>Click here to go back</a>.</p>";
}
elseif (!trim($message)) {
echo "<p>Please go back and type a Message</p><p><a href='javascript: history.go(-1)'>Click here to go back</a>.</p>";
}
elseif (!trim($email)) {
echo "<p>Please go back and enter an Email</p><p><a href='javascript: history.go(-1)'>Click here to go back</a>.</p>";
}
// Sends out the email or will output the error message
elseif (mail($sendto, $subject, $emailcontent, $headers)) {
echo "<br><br><p><b>Thank You $name</b></p><p>We will be in touch as soon as possible.</p>";
}
}
else {
?>
<p align="center">Uno o piu campi vuoti</p>
<?php } ?>