Código HTML:
<?php
if(isset($_POST['noticia'])) {
$num1 = $_POST['num1'];
$num2 = $_POST['num2'];
$numres = $num1 + $num2;
mysql_connect("localhost","root") or die ("no se pudo conectar");
mysql_select_db("prueba");
mysql_query("UPDATE numero SET sumatoria = sumatoria + 1") or die(mysql_error());
mysql_query("INSERT INTO numero (num1, num2, resultado) VALUES ('$num1', '$num2', '$numres')") or die(mysql_error());
$query2 = mysql_query("SELECT * FROM numero") or die(mysql_error());
while ($row = mysql_fetch_array($query2)) {
$sumador = $row['sumatoria'];
}
$query = mysql_query("SELECT * FROM numero WHERE id=$sumador") or die(mysql_error());
while ($res = mysql_fetch_array($query)) {
$num1_b = $res['num1'];
$num2_b = $res['num2'];
$numres_b = $res['resultado'];
}
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Documento sin título</title>
</head>
<body>
<form id="form1" name="form1" method="post" action="">
<p>
<label>
<input type="text" name="num1" id="num1" />
</label>
+
<label>
<input type="text" name="num2" id="num2" />
</label>
<input type="submit" name="noticia" id="noticia" value="Enviar" /></p>
<p>Resultado actual:
<?php if(isset($_POST['noticia'])) { echo $numres; } ?>
</p>
<p>Operadores Anteriores: <?php if(isset($_POST['noticia'])) { echo $res['num1']; } ?> + <?php if(isset($_POST['noticia'])) { echo $res['num2']; } ?></p>
<p> Resultado anterior: <?php if(isset($_POST['noticia'])) { echo $res['resultado']; }?></p>
<label></label>
</form>
</body>
</html> listo, pero no tira ningun error en ejecucion...