Success message after filling the form with HTML and PHP

Question

I am creating a simple customer registration through a form. However, I am unable to place a "Successfully Registered" message on the same page of this form. The validation of this form, before sending to the Database, I did in PHP, according to the code below:

index.php - Where the form is and where I’m trying to place the message.

            <form method="post" name="formCadastro" action="inserir_dados.php" >

            <input type="text" id="nome" name="nome" placeholder="Seu nome completo"

                    <?php
                        if(!empty($_SESSION['value_nome'])){
                            echo "value='".$_SESSION['value_nome']."'";
                            unset($_SESSION['value_nome']);
                        }
                     ?>>
                     <?php
                        if(!empty($_SESSION['vazio_nome'])){
                            echo "<p style='color: #b63e3e;position: relative; top:43px'>".$_SESSION['vazio_nome']."</p>";
                            unset($_SESSION['vazio_nome']);
                        }
                     ?>             

            <br><br><br>
            <input type="text" id="email" name="email" placeholder="Email comercial"

                    <?php
                        if(!empty($_SESSION['value_email'])){
                            echo "value='".$_SESSION['value_email']."'";
                            unset($_SESSION['value_email']);
                        }
                     ?>>
                     <?php
                        if(!empty($_SESSION['vazio_email'])){
                            echo "<p style='color: #b63e3e;position: relative; top:43px'>".$_SESSION['vazio_email']."</p>";
                            unset($_SESSION['vazio_email']);
                        }
                     ?>                     

            <br><br><br>
            <input type="text" id ="fone" name="fone" placeholder="Telefone com DDD"

                    <?php
                        if(!empty($_SESSION['value_fone'])){
                            echo "value='".$_SESSION['value_fone']."'";
                            unset($_SESSION['value_fone']);
                        }
                     ?>>
                     <?php
                        if(!empty($_SESSION['vazio_fone'])){
                            echo "<p style='font-family: Helvetica Neue; color: #b63e3e;position: relative; top:43px'>".$_SESSION['vazio_fone']."</p>";
                            unset($_SESSION['vazio_fone']);
                        }
                     ?>     

            <br><br><br>

            <input type="submit" value="Cadastrar">

        </form>

insert.php data - The PHP code to validate and insert the data into the BD.

<?php

session_start();

include_once 'conexao.php';

$nome = null;
$email = null;
$fone = null;
$verifica_insert= null;

if(empty($_POST['nome'])){
    $_SESSION['vazio_nome'] = "Campo nome é obrigatório";
        $verifica_insert= " ";
}else{
    $_SESSION['value_nome'] = $_POST['nome'];
}

if(empty($_POST['email'])){
    $_SESSION['vazio_email'] = "Campo e-mail é obrigatório";
    $verifica_insert= " ";
}else{
    $_SESSION['value_email'] = $_POST['email'];
}

if(empty($_POST['fone'])){
    $_SESSION['vazio_fone'] = "Campo e-mail é obrigatório";
    $verifica_insert= " ";
}else{
    $_SESSION['value_fone'] = $_POST['fone'];
}

if ($verifica_insert != " "){

$nome = mysqli_real_escape_string($conexao, $_POST['nome']);
$email = mysqli_real_escape_string($conexao, $_POST['email']);
$fone = mysqli_real_escape_string($conexao, $_POST['fone']);

$result_sql = "INSERT INTO cliente (nome,email,fone) VALUES ('$nome','$email','$fone')";

}else{

    $url='index.php';
    echo("<META HTTP-EQUIV=REFRESH CONTENT = '0;URL=$url'>");
    exit();

}

if($conexao->query($result_sql) == TRUE){
    $url='index.php';
    echo("<META HTTP-EQUIV=REFRESH CONTENT = '0;URL=$url'>");
    exit();

}else{
    echo "Erro".$result_sql."<br>".$conexao->error;
        }
$conexao->close();

?>

Answer 1

For simple cases, use sessions, there’s nothing simpler like this. After checking all the information on the log page, set a session variable with index erro or sucesso:

if(confirmado):
   $_SESSION['mensagem'] = "Usuario cadastrado com sucesso!";
   header("location: formularioDeRegisto.php");
   exit();
else:
   $_SESSION['mensagem'] = "Ocorreu um erro durante o registo, por favor tente novamente";
   header("location: formularioDeRegisto.php");
   exit();
endif;

And right on the form page, somewhere in the form header, check if any of the messages are set, and print and delete it in some way:

if(isset($_SESSION["mensagem"])):
   print $_SESSION["mensagem"];
   unset($_SESSION["mensagem"]);
endif; 

• Message to user after header change

Answer 2

In insert.php data change this variable

$url='index.php';

for

$url='index.php?cad=ok';

in the code section indicated below

if($conexao->query($result_sql) == TRUE){
$url='index.php?cad=ok';
echo("<META HTTP-EQUIV=REFRESH CONTENT = '0;URL=$url'>");
exit();

On the form page put

if ($_GET["cad"]=="ok"){
  $texto = ("<p><b><font color=\"#FF0000\">Cadastro realizado com sucesso</font></b></p>");
}

Then you give a <?php echo $texto; ?> at the exact place you want it to appear on your page.

Answer 3

After the insert line (down in your file inserir_dados.php

Puts:

<script>alert("Dados Salvos com sucesso!");</script>

It is not the most "beautiful" way, but quite simply this is what you should be looking for.