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Fernando Iam's questions

Martin Hope
Fernando Iam
Asked: 2022-04-09 06:26:01 +0800 CST
  • 0

Hello I have the following code

export default function getCharacters (){
    return fetch(`http://gateway.marvel.com/v1/public/comics?ts=9&apikey=${PUBLIC_KEY}&hash=${HASH}`)
        .then(response => response.json())
         .then(json =>{
             console.log(json)
         })
}

Is there a way to put the public key and the hash in the fetch method, that is not inside the url as I have it in the code? In the style that you can put the method for example.

javascript
Martin Hope
Fernando Iam
Asked: 2020-10-08 11:41:30 +0800 CST
  • 1

I want the two divs to be in the same position, but stuck to each other, which makes the hole for me, and I don't understand why it does it or how to remove it

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>

    <style>
        body {
            margin: 0;
            padding: 0;
        }

        header {
            height: 4em;
            width: 100%;
            border: 3px solid #ccc;
        }

        main {
            margin: 1px;
            height: 25em;
            width: 100%;
            border: 3px solid #ccc;
            display: flex;
            align-items: center;
            justify-content: flex-start
        }

        article {
            height: 23em;
            width: 22em;
            border: 3px solid black;
            margin-left: 5px;
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
           

        }

        .container-img {
            height: 15em;
            margin: 2px;
            width: 18em;
            border: 3px solid black;
            
        }

        .container-title {
            height: 5em;
            width: 18em;
            border: 3px solid black;
        }
    </style>
</head>

<body>
    <header></header>
    <main>
        <article>
            <div class="container-img"></div>
            <div class="container-title"></div>
        </article>
    </main>
</body>

</html>
html
Martin Hope
Fernando Iam
Asked: 2020-08-31 07:42:23 +0800 CST
  • 2

I am a bit confused on the subject of an API and I would like to know if the concept is what I think.

Step 1: User uses the client part for the search

Step 2: The information is received to a function that makes a request to the server.

Step 3: The server sends you the found data.

Step 4: The function returns to the client what was successfully or unsuccessfully found.

That is, step 2 where I have the SQL queries in this case (that is, the communication with the server), would it be an api?

api
Martin Hope
Fernando Iam
Asked: 2020-08-23 05:50:31 +0800 CST
  • 1

I want to put an example I have the following code. Without any css available

<body>
    <div id="main-container">
        <main>
            <h1 id="titulo">Database</h1>
            <input type="search" name="" id="input_search">
        </main>    
    </div>
  
</body>

Let's say I want to make it about 500px tall. Well, the question is, how should I do the calculations, to go from 500 px to em, is that I have seen that when a web page is created, the default font size is 16px, what I should do is the calculation from those 16px to receive how much em would I need? Is that if so, I do not understand why it is calculated by the source.

css
Martin Hope
Fernando Iam
Asked: 2020-08-21 10:09:26 +0800 CST
  • 2

I have an array, and I want each element to come out every X time, but I can't do it, I get the whole array directly

 var miarray = "Ejemplo";
 miarray = Array.from(miarray);

miarray.forEach(element => {
                setInterval(function(){ console.log(element);}, 3000);
            });

I had understood that element = a letter and it iterates, but everything comes out directly, how would I make it go from 1 to 1?

javascript
Martin Hope
Fernando Iam
Asked: 2020-07-08 13:24:14 +0800 CST
  • 0

Let's say I have this JSON

{
"pelicula":[
 { 
  "Titulo":"La vida es bella",
  "Director":"Roberto Benigni"
}
 { 
  "Titulo":"Jurassic park",
  "Director":"Steven Spielberg"
}
    ]
}

And I want to add more movies to this JSON, through a form, and that information is saved in the JSON file. Is it possible to do that?

javascript
Martin Hope
Fernando Iam
Asked: 2020-06-24 02:46:39 +0800 CST
  • 2

I'm reviewing object-oriented programming a bit, but there is one thing I don't quite understand, and that is why use the constructor or use getters and setters to give values ​​to the objects in question.

To begin with, I understand that the Getter must be used to be able to see the data, since if we encapsulate it, it does not allow us to access it.

But I don't understand the setter very well, why in theory can't the variables also be passed through the constructor? Why then create the setter? To be able to edit it once it has been created?

If something I said is not understood, I explain it again

public class Persona {

    private String nombre;
    private int edad;
    
    public Persona(String nombre, int edad) {
    
        this.nombre = nombre;
        this.edad=edad;
    }
    
    public void setNombre(String nombre) {
        
        this.nombre = nombre;
    }
    
     public String getNombre() {
        String nombre = this.nombre;
        
        return nombre;
    }
}

public class CrearPersona {

    public static void main(String[] args) {
    

        Persona persona = new Persona("Fernando",12);
        
        System.out.println(persona.getNombre());
        
        persona.setNombre("Luis");
        
        System.out.println(persona.getNombre());
        
    }

}
java
Martin Hope
Fernando Iam
Asked: 2020-05-29 14:04:59 +0800 CST
  • 0

I am trying to send different emails to users of the application, it turns out that if I send more than 2 it gives me the error:

Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\project\app\PHPMailer\class.smtp.php:239) in C:\xampp\htdocs\project\app\actionAdmin\ insert-offer.php on line 37

The error refers to a header that I have, but what I don't understand is why with 2 it works correctly, it does the header for me, and if there are 3 the header doesn't do it for me anymore, the application does its job of sending the mails correctly, but it does not redirect me. I don't really know what to do anymore. Goodnight

  foreach( $email  as  $email ){

                 $mail->IsSMTP(); // enable SMTP
                 $mail->SMTPDebug = 1; // debugging: 1 = errors and messages, 2 = messages only
                 $mail->SMTPAuth = true; // authentication enabled
                 $mail->SMTPSecure = 'ssl'; // secure transfer enabled REQUIRED for Gmail
                 $mail->Host = "smtp.gmail.com";
                 $mail->Port = 465; // or 587
                 $mail->IsHTML(true);
                 $mail->Username = "[email protected]";
                 $mail->Password = "corominesempleo20";
                 $mail->SetFrom($email['email']);
                 $mail->Subject = $titulo;
                 $mail->Body = $cuerpo;
                 $mail->AddAddress($email['email']);

                    if(!$mail->Send()) {
                    echo "Mailer Error: " . $mail->ErrorInfo;
                    } else {
                    echo "Message has been sent";
                    }
            }    


            $carpeta = "../actionAdmin/files/";
            opendir($carpeta);
            $destino = $carpeta.$_FILES['imagen']['name'];
            copy($_FILES['imagen']['tmp_name'],$destino);

            $nombreImg = $_FILES['imagen']['name'];


    $administrador->agregarOferta($titulo,$empresa,$email,$sector,$localidad,$descripcion,$nombreImg,$destino);

    $administrador->getEmail('Oferta de Empleo nueva','Estos son los datos de la oferta');

    $_SESSION['insertado'] = 'insertado';
      header("Location: ../views/panel-admin.php");
              exit();
    }
php
Martin Hope
Fernando Iam
Asked: 2020-05-29 10:42:21 +0800 CST
  • 0

I want to get all the emails from a table usuarios, and only one email from the table empresa.

I have this to get the emails from a table, but how can I add another one SELECTso that they come out together? and then be able to use this data. I had thought something like that, but I'm not sure I'm doing it right

SELECT usuario.email FROM usuario 
WHERE usuario.tipo_usuario='usuario' AND usuario.bolsa_ofertas='activado' 
(SELECT empresa.email FROM empresa WHERE empresa='ejemplo');
sql
Martin Hope
Fernando Iam
Asked: 2020-05-20 10:37:56 +0800 CST
  • 0

I want to validate if a query receives a record or not, and for that I am using num_rows, but it always detects 0 rows. But I try to make the query, and it prints data. I want to detect if it receives any data, because if not I want it to do an insert later.

$sql = "SELECT  id_oferta,id_usuario FROM historial WHERE id_oferta = ? AND id_usuario = ?";

                $stmt = $this->conn->prepare($sql);
                 $stmt->bind_param('ii',$id_oferta,$id_usuario);
                 $stmt->execute();   
                 $stmt->bind_result($oferta,$usuario);
                 $stmt->fetch();

                 $row_cnt = $stmt->num_rows;

                 printf("Result set has %d rows.\n", $row_cnt);

             $stmt->close();
            $this->conn->close();
php
Martin Hope
Fernando Iam
Asked: 2020-05-08 03:21:55 +0800 CST
  • 1

Hello I am wanting to use the library dotdotdot.

I'm printing some descriptions and I don't want the whole message to come out, well the first element that prints does, but the rest don't add the function anymore dotdotdot.

<?php foreach($listadoOfertas as $listadoOfertas){ ?>
        <div class="oferta-empleo">
            <img class ="logo-oferta" src="imagen1.png" alt="">

            <div class="datos-oferta">
                <h2 class="titulo-oferta"><a href=""><?php  echo $listadoOfertas['titulo'];?></a></h2>
                <p id='parrafo-padding'> <strong>Empresa: </strong><?php  echo $listadoOfertas['empresa'];?></p>
                <p ><strong>Localidad: </strong><?php  echo $listadoOfertas['localidad'];?> &nbsp; &nbsp; &nbsp;<strong>Fecha: 
                </strong><?php  echo $listadoOfertas['fecha_publicacion'];?></p> 

                <div id="descripcion">
                <p><?php  echo $listadoOfertas['descripcion_oferta'];?>
                </p>
                </div> 
                <script> $('#descripcion').dotdotdot();</script>
            </script> 

             </div>                
          </div>       
        <?php };?>
javascript
Martin Hope
Fernando Iam
Asked: 2020-04-26 00:25:34 +0800 CST
  • 0

Good Morning. I have the following error: Fatal error: Uncaught Error: Call to a member function bind_param()

I am trying to use a prepared statement for a SELECT, but they do not accept it, instead if I do it I do it using variables, if it accepts it and I get the expected result.

The data that I want to parameterize is an integer.

The statement is correct, since if it were not correct, it would not work out well for me, not even putting the variable instead of the ?

public function mostrarPerfil($nia){

            $sql = "SELECT * FROM usuario WHERE nia = ?";

            $result = $this->conn->query($sql);

            $result->bind_param('i',$nia);
            $result->execute();
                if ($result->num_rows > 0) {

                    $usuario = $result->fetch_all(MYSQLI_ASSOC);

                    return $usuario;
                }

                $result->close();
                $this->conn->close();
             }
php
Martin Hope
Fernando Iam
Asked: 2020-04-24 12:48:33 +0800 CST
  • 0

I was trying to get the data from a table, but I only get one data to come out. I did it by looking at an example, but I don't know what the truth is wrong


public function listarUsuarios(){

                $sql = "SELECT *FROM usuario  ";
                $result = $this->conn->query($sql);

                    if ($result->num_rows > 0) {

                        $row = $result->fetch_all(MYSQLI_ASSOC);

                        return $row;
                    }

                    $this->conn->close();
            }

             <?php

    foreach ($row as $key){

            echo $key['nia'].'<br';
            echo $key['password'].'<br';
    }
?>
php
Martin Hope
Fernando Iam
Asked: 2020-03-05 09:09:14 +0800 CST
  • 0

I want to check that if the checkbox is checked, for example, paint a paragraph yellow, and if I disable it, I don't understand how to make it work, I have this code

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>

</head>

<body>

    <input type="text" id="num1">
    <input type="text" id="num2">
    <input type="checkbox" id="checkbox">

    <p id="color">Test</p>
    <script>
        if ($('#checkbox').prop('checked')) {
            $('#color').css('background','yellow');
        }
    </script>
</body>

</html>

jquery
Martin Hope
Fernando Iam
Asked: 2020-03-02 13:24:28 +0800 CST
  • 1

I want to add some events to some input['text'], I would like to make it clean and add them from javascript . But I can't get them to work, how should I do it? This is how I tried to make it work

function soloNumeros(e){
    var key = window.Event ? e.which : e.keyCode
    return (key >= 48 && key <= 57)
}
var prueba = form.querySelectorAll('input[type=text]')[4];
prueba.addEventListener('keypress', soloNumeros(e));
```
javascript
Martin Hope
Fernando Iam
Asked: 2020-02-03 02:30:34 +0800 CST
  • 0

I am trying to use PDO
I use Windows 10, php 7.4.2 and XAMPP

$base = new PDO("mysqli:host=localhost; dbname=test, 'root','' ");

And I get the following Fatal error: Uncaught PDOException: could not find driver in C:\xampp\htdocs\Curso\pdo.php:2 Stack trace: #0 C:\xampp\htdocs\Curso\pdo.php(2) : PDO->__construct('mysqli:host=loc...') #1 {main} thrown in C:\xampp\htdocs\Course\pdo.php on line 2

I have gone to the php.ini file and I have entered the following line extension=php_pdo_mysql.dll since it did not have it, and it still does not go, I have the DLL in the EXT folder

php
Martin Hope
Fernando Iam
Asked: 2020-12-08 02:23:22 +0800 CST
  • 1

I have 3 checkboxes, and I need each one to change the background of a color. I get the first one to change color, but the others, I don't know how to refer to them, I tried with the queryselectorAll, but it doesn't work for me.

'use strict'


let box = document.querySelector('input[type=checkbox]'); 

function color(){
    if(box.checked)
    document.body.style.background='red';
}
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
        <input type="checkbox" value="red" onchange ="color()"/>Rojo
        <input type="checkbox" value="blue" onchange ="color()"/>Azul  
        <input type="checkbox" value="gren" onchange ="color()"/>Verde


<script src="ejercicio4.js"></script>
</body>
</html>

javascript
Martin Hope
Fernando Iam
Asked: 2020-12-02 03:17:46 +0800 CST
  • 1

When I log in with a user that is not 'admin', a form should appear to update the total_expense. Well, when I put the data, and I give the submit, I get two errors

Notice: Undefined index: user in C:\xampp\htdocs\exam\validar_client.php on line 5 Notice: Undefined index: password in C:\xampp\htdocs\exam\validar_client.php on line 6

Why do I get these two errors? I do not understand, what is it that I get the username and password.

This is the repository https://github.com/blugnomeXD/exam

<?php

    include('biblioteca.php');

    $usuario =$_POST['usuario'];
    $password =$_POST['password'];

    $consulta ="SELECT usuario,pass FROM clientes WHERE usuario ='$usuario' AND pass ='$password'";
    $allusers = "SELECT * FROM clientes";
    $showUser ="SELECT * FROM clientes WHERE usuario ='$usuario' AND pass ='$password'";

    $rest_consulta =mysqli_query($conexion,$consulta);
    $fila = mysqli_fetch_array($rest_consulta,MYSQLI_ASSOC);


    //Modificar
    if($fila==true){
        if($usuario=='admin'){
            echo "<h1>Tus datos de cuenta</h1>";
            $show_users =mysqli_query($conexion,$allusers);
            while($fila_registro = mysqli_fetch_array($show_users,MYSQLI_ASSOC)){

             echo '<table> ';
             echo '<tr>';        
                   echo  '<th>'. $fila_registro['usuario'] . '</th>' ;
                   echo  '<th>'. $fila_registro['pass'] . '</th>' ;
                   echo  '<th>'. $fila_registro['nombre'] . '</th>' ;
                   echo  '<th>'. $fila_registro['apellido1'] . '</th>' ;
                   echo  '<th>'. $fila_registro['apellido2'] . '</th>' ;
                   echo  '<th>'. $fila_registro['telefono'] . '</th>' ;
                   echo  '<th>'. $fila_registro['total_gastado'] . '</th>' ;
             echo '<tr>';
             echo '</table>';
           } 

        }else{

            $show_user =mysqli_query($conexion,$showUser);
            while($fila_registro = mysqli_fetch_array($show_user,MYSQLI_ASSOC)){
                echo "<h1>Tus datos de cuenta</h1>";
             echo '<table> ';
             echo '<tr>';        
                   echo  '<th>'. $fila_registro['usuario'] . '</th>' ;
                   echo  '<th>'. $fila_registro['pass'] . '</th>' ;
                   echo  '<th>'. $fila_registro['nombre'] . '</th>' ;
                   echo  '<th>'. $fila_registro['apellido1'] . '</th>' ;
                   echo  '<th>'. $fila_registro['apellido2'] . '</th>' ;
                   echo  '<th>'. $fila_registro['telefono'] . '</th>' ;
                   echo  '<th>'. $fila_registro['total_gastado'] . '</th>' ;
             echo '<tr>';
             echo '</table>';
           }    

        echo "<hr>";
        echo "<form method='POST' action='validar_cliente.php'>
            <label for='dinero'>Dinero:</label><input type='text' name='dinero'>
              <input type='submit' value='Actualizar'> </form>";  
        }
    }
    /*
    if($fila<=0){

        //modificar
        echo 'modificar';
    }*/
    mysqli_close($conexion);
?>

---

El formulario donde ingreso la información del usuario es el siguiente






<form action="validar_cliente.php" method="POST">
    <label for="usuario">Usuario: </label><input type="text" name="usuario"> <br>
    <label for="password">Contraseña: </label><input type="text" name="password"> <br>
    <input type="submit" value="Ingresar">
</form>







Ahi hay algún error? 

Por que por ejemplo, cuando voy a ingresar un login, funciona bien me sale todo como yo quiero.

Hay otra cosa que me pasa, y es en este formulario que lo hago atraves de PHP, me salta el error  Notice: Undefined variable: dinero in C:\xampp\htdocs\examen\validar_cliente.php on line 75
Por qué sale como que no lo tengo definido, si lo  he puesto en el formulario?

````

 echo "<form name='formulario' method='post' action='validar_cliente.php'>
         Dinero <input type='text' name='dinero' > 
        <input type='submit'></form>";
        $dinero=$_POST['dinero'];

        $update = "UPDATE clientes SET total_gastado = total_gastado+($dinero) WHERE usuario ='$usuario' AND pass='$password'";
php
Martin Hope
Fernando Iam
Asked: 2020-09-22 00:45:57 +0800 CST
  • 2

This is my code, I just want to replicate that little text through a for loop.

the result that it gives me is, Holaolalaa I don't understand why it comes out like this.

<?php

$text = "Hola";
$length = strlen($text);

for($i=0;$i<=$length;$i++){

    $rest = substr($text, $i);

   echo $rest;
}

?>
php
Martin Hope
Fernando Iam
Asked: 2020-08-27 09:45:04 +0800 CST
  • 2

I wanted to know if it is correct to put high numbers for the margin, for example I have this code, what I want is to put a text in the center of the screen, but I can't think of any other way, but I don't know if it is the most correct way Sorry if the question is too simple. But I can't find the information I'm looking for

div{
margin-top: 25%;
text-align:center
}
<!DOCTYPE html>
<html>
<head>

        <link href="https://fonts.googleapis.com/css?family=Lexend+Tera&display=swap" rel="stylesheet">

</head>
 
<body>
	<div>

		<H1>Esto es una prueba</H1>
    </div>
</body>
</html>

html