Value of input type null

Asked

Viewed 729 times

0

I will pass here every page for an analysis and know how I send the value of the input type to the other page. I thank you already!

<!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>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

</head>

<body>


<form action="carrinho_vitrine.php" method="post">

<!--INFORMAÇÕES DO PRODUTO -->

<table id="tb_vitrine" border="1px solid black" bordercolor="f2f2f2" width=90% align="center" class="bordasimples">
 <caption><h4>:: Informações do Produto ::</h4></caption>

<?php 

if(isset($_POST['cbo_vitrine'])){  

//Conecta o banco de dados e traz as informações dos produtos...
include("conexao.php");
$pdo=conectar();          
    try{     

$refer = $_POST['cbo_vitrine'];

           //Buscando dados..  
           $sql=$pdo->prepare("SELECT * FROM vitrine_1 WHERE refer = '$refer'");
              $sql->bindParam(':id', $_GET['id'], PDO::PARAM_INT);
              $sql->bindParam(':refer', $_GET['refer'], PDO::PARAM_STR);
              $sql->bindParam(':modelo', $_GET['modelo'], PDO::PARAM_STR);
              $sql->bindParam(':cor', $_GET['cor'], PDO::PARAM_STR);
              $sql->bindParam(':numeracao', $_GET['numeracao'], PDO::PARAM_STR);
              $sql->bindParam(':unit', $_GET['unit'], PDO::PARAM_STR);

              $sql->execute(array('refer' => $refer));

              //criando o cabeçalho na tabela
               echo '<th>' .'REFERÊNCIA'. '</th>';
                echo '<th>' .'MODELO'. '</th>';
                 echo '<th>' .'COR'. '</th>';
                  echo '<th>' .'NUMERAÇÃO'. '</th>';
                   echo '<th>' .'QTDE'. '</th>';
                    echo '<th>' .'PREÇO UNIT.'. '</th>';

              //loop
              while($linha=$sql->fetch(PDO::FETCH_ASSOC)){

                          //pegando o dado do campo = refer 
                            $id = $linha["id"];
                            $refer = $linha["refer"];                         
                            $modelo = $linha["modelo"];
                            $cor = $linha["cor"];
                            $numeracao = $linha["numeracao"];
                            $qtde = "1";
                            $unit = $linha["unit"];                    

                           //montando a table...
                            echo '<tr>';
                            echo '<td>' .  $refer . '</td>';
                            echo '<td>' .  $modelo . '</td>';
                            echo '<td>' .  $cor . '</td>';
                            echo '<td>' .  $numeracao . '</td>';
                            echo '<td>' .  $qtde . '</td>';
                            echo '<td>' .  $unit . '</td>';
                            echo '</tr>';               
                };

echo'<td height="10"><a href="carrinho_vitrine.php?acao=add&id='.$id.'">
<img src="img/comprar-1.png" name="add_car_vitrine" id="add_car_vitrine" height="50" width="120" align="center" title="Adicionar ao Carrinho" value="add_car_vitrine"></a></td>';

 //fechando a conexão
 $pdo = null;
               }
catch(PDOExcception $erro){
echo $erro->getmessage();
                          }
}
?>  

</table> 

Sua numeração:
<input type="text" value="" id="numero" maxlength="2" placeholder="Digite" size="3" align="center">

</form> 

</body>
</html>

With jquery I’m testing and capturing the input type value.

  $(document).ready(function(){ 

   $("#add_car_vitrine").click(function(){

     var valor = $("input[name=numero]").val();

       if($("#numero").val()==""){ 
         alert("Digite sua numeração!");
         return false; 
       }                
       //mostramos o valor com alert()
       //alert(valor);
   });
});

Can you mount an Ajax and send the value of this input type to the other page? Can someone please post an example? Grateful.

php html

2 answers

1

Since the question has been edited, the answer has also been edited and becomes:

  1. That line can’t be inside the if(isset($_POST['cbo_vitrine'])){ because that way it won’t appear to be clicked:

    <img src="img/comprar-1.png" name="add_car_vitrine" id="add_car_vitrine" height="50" width="120" align="center" title="Adicionar ao Carrinho" value="add_car_vitrine"></a></td>';

  2. To be functional put it before the closing tag </form> as button:

    ..........
..........
<?php
echo'<td height="10"><button type="button" id="add_car_vitrine">
<img src="img/comprar-1.png" height="50" width="120" align="center" title="Adicionar ao Carrinho"></button></td>';
?>
</form>

  3. Put an id on the tag form example: id="myForm"

    <form id="myForm" action="carrinho_vitrine.php" method="post">

  4. The script - in Else put the sending form $('#myForm').submit();

    $(document).ready(function(){ 

    $("#add_car_vitrine").click(function(){

    var valor = $("input[name=numero]").val();

      if($("#numero").val()==""){ 
         alert("Digite sua numeraçao!");
         return false; 
      }else{
         $('#myForm').submit();
      }                 
      //mostramos o valor com alert()
      //alert(valor);
   });
});

0

I’m not sure I understand your question. Where did you put that echo? If it’s in the form, your expression can look like this:

<form method="post" action="teste.php?pag=<?php echo $pag; ?>">
...

  • Nothing worked, unfortunately... What I noticed is that sending this way: <a href="carrinho_vitrine.php? acao=add&id='. $id. '">, then I am enviand via GET, Correct?

  • In this inpu type -->> Your numbering: <input type="text" value="" id="number" maxlength="2" placeholder="Type" size="3" align="center">, I want to send it to the other page. Note that this data: echo '<td>' . $numeration . '</td>'; it comes from the base. When I type the new value into the input type, I am changing it by uploading it to the other page. Only this does not happen.

Browser other questions tagged php html

You are not signed in. Login or sign up in order to post.