Hello first of all I understand that the error can be produced by blank spaces before <?php or after the closing tags. but I really can not find the problem in my code, the message is as follows.
[10-Aug-2017 05:49:15 Europe / Berlin] PHP Warning: Can not modify header information - headers already sent by (output started at /Applications/MAMP/htdocs/POO/project/Views/template.php : 65) in /Applications/MAMP/htdocs/POO/proyecto/Controllers/EstudiantesController.php on line 47
template.php
<?php namespace Views;
$template = new Template();
class Template
{
public function __construct()
{
?><!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>SIS32 | byCODE</title>
<link rel="stylesheet" href="/Views/template/css/bootstrap-paper.css">
<link rel="stylesheet" href="/Views/template/css/font-awesome.css">
<link rel="stylesheet" href="/Views/template/css/myStyle.css">
<script src="/Views/template/js/jquery.js"></script>
</head>
<body>
<nav class="navbar navbar-inverse">
<div class="container-fluid">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse"
data-target="#bs-example-navbar-collapse-2">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="/">Administración de estudiantes</a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-2">
<ul class="nav navbar-nav">
<li class=""><a href="/">Inicio <span class="sr-only">(current)</span></a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button"
aria-expanded="false">Estudiantes <span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<li><a href="/estudiantes">Listar</a></li>
<li><a href="/estudiantes/agregar">Agregar</a></li>
</ul>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button"
aria-expanded="false">Secciones <span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<li><a href="/secciones">Listar</a></li>
<li><a href="/secciones/agregar">Agregar</a></li>
</ul>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li><a href="#">byCode</a></li>
</ul>
</div>
</div>
</nav>
<div class="container" id="container"><?php }
public function __destruct(){
?></div>
<script src="/Views/template/js/bootstrap.js"></script>
</body>
</html>
<?php
}
}
?>StudentsController.php
<?php namespace Controllers;
use Models\Estudiante as Estudiantes;
use Models\Seccion as Secciones;
class EstudiantesController
{
private $estudiante;
private $section;
public function __construct()
{
$this->estudiante = new Estudiantes();
$this->section = new Secciones();
}
public function index()
{
$datos = $this->estudiante->listar();
return $datos;
}
public function editar($id)
{
print 'Editar el alumno ' . $id;
}
public function agregar()
{
if ($_POST) {
$permitidos = array('image/jpeg', 'image/png', 'image/gif', 'image/jpg');
$limite = 700;
if (in_array($_FILES['imagen']['type'], $permitidos) && $_FILES['imagen']['size'] <= $limite * 1024) {
$nombre = date('is') . $_FILES['imagen']['name'];
$ruta = 'Views' . DS . 'template' . DS . 'imagenes' . DS . 'avatars' . DS . $nombre;
move_uploaded_file($_FILES['imagen']['tmp_name'], $ruta);
try {
$this->estudiante->setNombre($_POST['nombre']);
$this->estudiante->setEdad($_POST['edad']);
$this->estudiante->setPromedio($_POST['promedio']);
$this->estudiante->setImagen($nombre);
$this->estudiante->setIdseccion($_POST['idseccion']);
$this->estudiante->add();
header("Location: " . URL . "estudiantes");
} catch (\Exception $e) {
echo 'Ah ocurrido un error al registrar el alumno ' . $e->getCode();
}
} else {
print 'imagen no permitida';
}
} else {
$datos = $this->section->listar();
return $datos;
}
}
}
$estudiante = new EstudiantesController();
?> Note: I am following a videotutorial of poo , then I leave the template.php that is shown in the course.
<?php namespace Views;
$template = new Template();
class Template{
public function __construct(){
?>
<!DOCTYPE html>
<html lang="es">
<head>
<meta charset="UTF-8">
<title>Administración de estudiantes | Codigo Facilito</title>
<link rel="stylesheet" href="<?php echo URL; ?>Views/template/css/bootstrap.css">
<link rel="stylesheet" href="<?php echo URL; ?>Views/template/css/general.css">
</head>
<body>
<nav class="navbar navbar-inverse navbar-fixed-top">
<div class="container-fluid">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-2">
<span class="sr-only"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="<?php echo URL; ?>">Administración de Estudiantes</a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-2">
<ul class="nav navbar-nav">
<li><a href="<?php echo URL; ?>">Inicio</a></li>
<li class="dropdown">
<a href="" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Estudiantes <span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<li>Listado</li>
<li>Agregar</li>
</ul>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Secciones <span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<li><a href="<?php echo URL; ?>secciones">Listado</a></li>
<li><a href="<?php echo URL; ?>secciones/agregar">Agregar</a></li>
</ul>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li>SENA</li>
</ul>
</div>
</div>
</nav>
<?php
}
public function __destruct(){
?>
<footer class="navbar-fixed-bottom">
Todos los derechos reservados © 2017 <br>
Fresley Quiñones Angarita ~ @_bycar | <b>SENA</b>
</footer>
<script src="//code.jquery.com/jquery-1.11.3.min.js"></script>
<script src="<?php echo URL; ?>Views/template/js/bootstrap.js"></script>
</body>
</html>
<?php
}
}
?>