Teste 1

<?php
     if( isset($_SESSION[$login]) ) {
     <div id="login" class="grid_4">
        <br>
        <center><img src="./img/login.png" width="140" height="40" alt="login"></center><br>

        <form method='POST' action='cadastros.php'>
            echo "<br><br><p id=ca style='color: white' align=center>";
            echo "Seja bem vindo :<br> ". $_SESSION[$login] -> nome . "<br><br>";
            echo "E-Mail: <br>" . $_SESSION[$login] -> email."</p>";
            <a id=li href="http://localhost/meusite/php/editar.php"><h3>EDITAR CONTA</h3><a>
        </form>
        <p class="login">&nbsp;&nbsp;&nbsp; <a href="HTML/cadastro.html" class="login"> &#8658; Registre-se</a><br>
         </p>
     </div>
} else {
     <div id="login" class="grid_4">
        <br>
        <center><img src="./img/login.png" width="140" height="40" alt="login"></center><br>

        <form name="login" action="index.php">
        &nbsp;&nbsp;<img src="./img/usuario.png" border="0" width="40" height="30" align="top" alt="usuario">
        <input type="text" name="nome" size="11"><br>

        &nbsp;&nbsp;<img src="./img/senha.png" border="0" width="40" height="30" align="top" alt="senha">
        <input type="password" name="senha" size="11"><br><br>

        <center><input type="submit" value="login"></center>
        </form>
        <p class="login">&nbsp;&nbsp;&nbsp; <a href="HTML/cadastro.html" class="login"> &#8658; Registre-se</a><br>
         </p>
     </div>
}

 ?>