Pagina che intercetta l'id "dovrebbe filtrare" i record e inviare le modifiche a gestione_clienti.php: cliente_modifica.php
Codice PHP:
<?php
if (!isset($_SESSION)) {
  
session_start();
}


$Nome_tabella     'anagrafica';


$filtro_livello    $_SESSION['MM_Auth_livello'];
if (
$filtro_livello 3){
    
$limite_livello 'id = '.$_SESSION['MM_Auth_id'].'';
    }else{
    
$limite_livello 'id > 0';
        }


//
include("../connections/phpgotomysql.php");
$db = new phpgotomysql();
$db->getParams($config);
$db->connect();


//=================================
//VISUALIZZA 
//=================================
$rs_auth $db->query("SELECT * FROM ".$Nome_tabella." WHERE ".$limite_livello." AND id='".$_GET['id']."'");
$row_rs_utenti mysql_fetch_assoc($rs_auth);


?>


<div class="row">
    <div id="breadcrumb" class="col-md-12">
        <ol class="breadcrumb">
            <li><a href="index.php">Cruscotto</a></li>
            <li><a href="#">Clienti</a></li>
            <li><a href="index.php?#ajax/gestione_clienti.php">Visualizza</a></li>
            <li><a href="index.php?#ajax/cliente_modifica.php">Modifica</a></li>
        </ol>
    </div>
</div>




<div class="row">
    <div class="col-xs-12">
        <div class="box">
            <div class="box-header">
                <div class="box-name">
                    <i class="fa fa-table"></i>
                    <span>Gestione Clienti</span>
                </div>
                <div class="box-icons">
                    <a class="collapse-link">
                        <i class="fa fa-chevron-up"></i>
                    </a>
                    <a class="expand-link">
                        <i class="fa fa-expand"></i>
                    </a>
                    <a class="close-link">
                        <i class="fa fa-times"></i>
                    </a>
                </div>
                <div class="no-move"></div>
            </div>
            <div class="box-content">
              <h4 class="page-header">Form inserimento Clienti</h4>


<form action="ajax/cliente_modifica.php" method="get" name="frm_modifica">  
<div class="tabbable" id="tabs-249034">
    <ul class="nav nav-tabs">
      <li class="active"> <a href="#anagrafica" data-toggle="tab">Dati anagrafici</a> </li>
      <li> <a href="#recapiti" data-toggle="tab">Recapiti</a> </li>
      <li> <a href="#dati_commerciali" data-toggle="tab">Dati commerciali</a></li>
    </ul>
    <div class="tab-content">
      <div class="tab-pane active" id="anagrafica">
        <p>
        <div class="col-md-1 column"></div>
        <div class="col-md-4 column">
          <fieldset>
            <div class="form-group">
              <label for="nome">Nome</label>
              <input type="text" autocomplete="off" class="form-control" name="nome" id="nome" placeholder="Inserisci il Nome..." value="<?php echo $row_rs_utenti['nome']; ?>">
            </div>
            <div class="form-group">
              <label for="cognome">Cognome/Nome Azienda</label>
              <input type="text" autocomplete="off" class="form-control" name="cognome" id="cognome" placeholder="Inserisci il Cognome o il nome dell'Azienda..."value="<?php echo $row_rs_utenti['cognome']; ?>">
            </div>
            <div class="form-group">
              <label for="cf">Codice Fiscale / P.Iva</label>
              <input type="text" class="form-control" autocomplete="off" name="cf" id="cf" placeholder="Inserisci il Codice Fiscale o P.Iva..."value="<?php echo $row_rs_utenti['cf']; ?>">
            </div>
          </fieldset>
        </div>
        <div class="col-md-2 column"></div>
        <div class="col-md-4 column">
          <fieldset>
            <div class="form-group">
              <label for="indirizzo">Indirizzo</label>
              <input type="text" class="form-control" autocomplete="off" name="indirizzo" id="indirizzo" placeholder="Inserisci l'indirizzo..."value="<?php echo $row_rs_utenti['indirizzo']; ?>">
            </div>
            <div class="form-group">
              <label for="citta">Città</label>
              <input type="text" class="form-control" autocomplete="off" name="citta" id="citta" placeholder="Inserisci la Città..."value="<?php echo $row_rs_utenti['citta']; ?>">
            </div>
            <div class="form-group">
              <label for="cap">CAP</label>
              <input type="number" class="form-control" autocomplete="off" name="cap" id="cap" placeholder="Inserisci il CAP..."value="<?php echo $row_rs_utenti['cap']; ?>">
            </div>
          </fieldset>
        </div>
        <div class="col-md-1 column"></div>
        </p>
      </div>
      <div class="tab-pane" id="recapiti">
        <p>
        <div class="col-md-1 column"></div>
        <div class="col-md-4 column">
          <fieldset>
            <div class="form-group">
              <label for="fax">Fax</label>
              <input type="tel" class="form-control" autocomplete="off" name="fax" id="fax" placeholder="Inserisci il fax..."value="<?php echo $row_rs_utenti['fax']; ?>">
            </div>
            <div class="form-group">
              <label for="email">E-mail</label>
              <input type="email" class="form-control" name="email" id="email" placeholder="Inserisci l'indirizzo e-mail..."value="<?php echo $row_rs_utenti['mail']; ?>">
            </div>
            <div class="form-group">
              <label for="fisso">Tel. fisso</label>
              <input type="tel" class="form-control" autocomplete="off" name="fisso" id="fisso" placeholder="Inserisci il telefono fisso..."value="<?php echo $row_rs_utenti['fisso']; ?>">
            </div>
          </fieldset>
        </div>
        <div class="col-md-2 column"></div>
        <div class="col-md-4 column">
          <fieldset>
            <div class="form-group">
              <label for="cellulare">Cellulare</label>
              <input type="tel" class="form-control" autocomplete="off" name="cellulare" id="cellulare" placeholder="Inserisci il numero di Cellulare..."value="<?php echo $row_rs_utenti['cellulare']; ?>">
            </div>
            <div class="form-group">
              <label for="skype">Skype</label>
              <input type="text" class="form-control" autocomplete="off" name="skype" id="skype" placeholder="Inserisci il recapito Skype..."value="<?php echo $row_rs_utenti['skype']; ?>">
            </div>
            <div class="form-group">
              <label for="web">Sito internet</label>
              <input type="url" class="form-control" autocomplete="off" name="web" id="web" placeholder="Inserisci l'indirizzo web..."value="<?php echo $row_rs_utenti['web']; ?>">
            </div>
          </fieldset>
        </div>
        <div class="col-md-1 column"></div>
        </p>
      </div>
[continua ...]