<?php
echo "
<html>
<head>
<meta content='text/html; charset=utf-8' http-equiv='Content-Type' />
<title>Procesando...</title>
<script type='text/javascript'>
function enviarForm(){
document.nameForm.submit();
}
</script>
</head>
<body onLoad='javascript:enviarForm();'>
<form name='nameForm' action='pagina-destino.php' method='post'>
<input type='hidden' name='campo1' value='[valor]'/>
<input type='hidden' name='campo2' value='[valor]'/>
<input type='hidden' name='campo3' value='[valor]'/>
</form>
</body>
</html>";
?>
