ACCESO AL SISTEMA PHP

FORMULARIO

                                                     
                                                       <h1> acceso al sistema </h1>
                                                      <form action="formulario6.php"method="post">
                                                       usuario<input type="text" name="user" /><br/>
                                                      clave<input type="password"name="pass" /><br/>
                                                      <input type="submit"valve="ingrese el sistema"/><br/>
                                                      </form>
    

                                                                    
                                                                   <h1> autollamado </h1>
 
                                                     <?php
                                                     $numeros = array (1,2);
                                                     for ($x = 2 ; $x < = 19 ; x++){
                                                     $numeros[x]=$numeros[x-2]+$numeros[$x-1];
                                                     }
                                                     echo "<p> posicion 19:$numeros[19]</p>";
                                                     print_r($numeros);
                                                     ?>

                                                                   <h1>validando datos </h1>
                                                    <?php
                                                    if($_post["usuario"]== "agustin"&& $_post["contrasena"]=="examen"){
                                                    $usuario = $_post["usuario"];
                                                    echo "hola $usuario<br/> datos correctos";
                                                    }else{
                                                    echo "los datos ingresados son incorrectos";
                                                    }

                             
                                                                 <h1> datos de acceso </h1>
                                                     <from action = "examen2.php" method = "post">
                                                     usuario<input type = "text" name = "usuario" /> <br/>
                                                     contrase&ntilde;a <input type = "password" name = "contrasena"/>
                                                     <input type = "submit" valve ="ingresar"/>
                                                     </from>

                                                    <p><a href="examen1.php">volver</a></p>

$CONE-PHP

DATOS

<?php
$cone = mysql_connect("localhost","root","123456789");
mysql_select_db("alumnos",$cone);
$datos = mysql_query("select * from datos",$cone);
while($fila= mysql_fetch_assoc($datos)){
echo  $fila["IDALUMNO"]."-";
echo  $fila["NOMBRE"]."-";
echo  $fila["APELLIDO"]."-";
echo  $fila["EDAD"]."</br>";
}
mysql_free_result($datos);
mysql_close($cone);

?>

INSERTAR

<?php$cone = mysql_connect("localhost","root","123456789");
mysql_select_db("alumnos",$cone);
$consulta ="insert into datos value(null,'Flopondio Cachupin','Huarpaya Huayamares','1991-06-03','gatovolador@gmail.com',22)";
$x = mysql_query($consulta,$cone);
if($x){
echo "registro guardado";
}else{
echo "no se pudieron guardadr los datos";
}
//mysql_free_result($x);
mysql_close($cone);
?>
</br></br></br>
<?php
include("datos.php");
?>

ACTUALIZAR  DATOS

<?php
$cone = mysql_connect("localhost","root","123456789");
mysql_select_db("alumnos",$cone);
$consulta ="update datos set nombres='mario alberto';apellidos='torres baca' where idalumno=3";

$x = mysql_query($consulta,$cone);
if($x){
echo "registros eliminados";
}else{
echo "no se pudieron eliminar los datos";
}
//mysql_free_result($x);
mysql_close($cone);
?>
</br></br></br>
<?php
include("datos.php");
?>

VER  DATOS

<h1> ver mis datos </h1>
<form action="fver.php" method="post">
su direccion de email<input type="password" name="email"/>
<input type=submit value="ver mis datos"/>
</form>

ELIMINAR  DATOS

<?php
$cone = mysql_connect("localhost","root","123456789");
mysql_select_db("alumnos",$cone);
$consulta ="delete from datos where idalumno>=4";

$x = mysql_query($consulta,$cone);
if($x){
echo "registros eliminados";
}else{
echo "no se pudieron eliminar los datos";
}
//mysql_free_result($x);
mysql_close($cone);
?>
</br></br></br>
<?php
include("datos.php");
?>