Formularios seguros en PHP

[Rosana1234]

Creo que esto, es un poco largo

<form name="comprar" method="post" action="comprar.php" enctype="multipart/form-data">
<table width="420" align="center">
<tr bgcolor="#CCCCCC">
<td width="200"><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>&nbsp;Nombre
y Apellido</b></font></td>
<td width="200">
<input type="text" name="nombre">
</td>
</tr>
<tr bgcolor="#CCCCCC">
<td width="200"><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>&nbsp;Tel&eacute;fono</b></font></td>
<td width="200">
<input type="text" name="telefono">
</td>
</tr>
<tr bgcolor="#CCCCCC">
<td width="200"><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>&nbsp;e-mail</b></font></td>
<td width="200">
<input type="text" name="mail">
</td>
</tr>
<tr bgcolor="#CCCCCC">
<td width="200"><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>&nbsp;Direcci&oacute;n</b></font></td>
<td width="200">
<input type="text" name="direccion">
</td>
</tr>
<tr bgcolor="#CCCCCC">
<td width="200"><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>&nbsp;Localidad</b></font></td>
<td width="200">
<input type="text" name="localidad">
</td>
</tr>
<tr bgcolor="#CCCCCC">
<td width="200"><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>&nbsp;Ciudad</b></font></td>
<td width="200">
<input type="text" name="ciudad">
</td>
</tr>
<tr bgcolor="#CCCCCC">
<td width="200"><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>&nbsp;C.P.</b></font></td>
<td width="200">
<input type="text" name="cp">
</td>
</tr>
<tr>
<td width="200">&nbsp;</td>
<td width="200">&nbsp;</td>
</tr>
<tr bgcolor="#999999">
<td width="200"><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b><font color="#FFFFFF">&nbsp;Modelo</font></b></font></td>
<td width="200">
<select name="modelo">
<option>Musculosa</option>
<option>Manga corta</option>
<option>Manga larga</option>
</select>
</td>
</tr>
<tr bgcolor="#999999">
<td width="200"><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b><font color="#FFFFFF">&nbsp;Leyenda</font></b></font></td>
<td width="200">
<input type="text" name="leyenda" size="30">
</td>
</tr>
<tr bgcolor="#999999">
<td width="200"><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b><font color="#FFFFFF">&nbsp;Color
de la remera</font></b></font></td>
<td width="200">
<select name="cremera">
<option>Az&uacute;l</option>
<option>Roja</option>
<option>Blanca</option>
<option>Negra</option>
<option>Amarilla</option>
<option>Celeste</option>
<option>Verde</option>
<option>Rosa</option>
</select>
</td>
</tr>
<tr bgcolor="#999999">
<td width="200"><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b><font color="#FFFFFF">&nbsp;Color
de la leyenda</font></b></font></td>
<td width="200">
<select name="cleyenda">
<option>Blanco</option>
<option>Negro</option>
<option>Rojo</option>
<option>Celeste oscuro</option>
<option>Verde</option>
<option>Amarillo</option>
<option>Marr&oacute;n</option>
<option>Rosa</option>
<option>Naranja</option>
<option>Violeta</option>
<option>Plateado</option>
<option>Dorado</option>
<option>Naranja fluor</option>
<option>Amarillo fluor</option>
<option>Verde fluor</option>
</select>
</td>
</tr>
<tr bgcolor="#999999">
<td width="200"><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b><font color="#FFFFFF">&nbsp;Talles</font></b></font></td>
<td width="200">
<select name="talles">
<option>XS</option>
<option>S</option>
<option>M</option>
<option>L</option>
<option>XL</option>
<option>XXL</option>
</select>
</td>
</tr>
<tr>
<td width="200"><font face="Verdana, Arial, Helvetica, sans-serif" size="2"></font></td>
<td width="200">&nbsp; </td>
</tr>
<tr bgcolor="#666666">
<td colspan="2" align="center"><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b><font color="#FFFFFF">Formas
de pago</font></b></font></td>
</tr>
<tr bgcolor="#666666">
<td align="center" colspan="2">
<table width="300">
<tr>
<td align="right">
<input type="checkbox" name="efectivo" value="checkbox">
</td>
<td><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b><font color="#FFFFFF">Efectivo</font></b></font></td>
</tr>
<tr>
<td align="right">
<input type="checkbox" name="deposito" value="checkbox">
</td>
<td><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b><font color="#FFFFFF">Dep&oacute;sito
bancario </font></b></font></td>
</tr>
<tr>
<td align="right">
<input type="checkbox" name="dineromail" value="checkbox">
</td>
<td><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b><font color="#FFFFFF">Dineromail</font></b></font></td>
</tr>
<tr>
<td align="right">
<input type="checkbox" name="pagofacil" value="checkbox">
</td>
<td><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b><font color="#FFFFFF">Pago
Facil </font></b></font></td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="200" align="center"><font face="Verdana, Arial,