Undefined variable when trying to add a value in the session

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Undefined variable when trying to add a value in the session

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#1 by (0 votes)

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The template.php file:

HTML code:

<html>
...

<table border="3">

            <tr>
                <th>Tarefas</th>
                <th>Descrição</th>
                <th>Prazo</th>
                <th>Prioridade</th>
                <th>Concluída</th>
            </tr>

            <?php foreach($lista_tarefas as $tarefa){ ?>

                <tr>
                    <td><?=$tarefa['nome'];?></td>
                    <td><?=$tarefa['descricao'];?></td>
                    <td><?=$tarefa['prazo'];?></td>
                    <td><?=$tarefa['prioridade'];?></td>
                    <td><?=$tarefa['concluida'];?></td>
                </tr>

            <?php } ?>

        </table>

...
</html >

PHP code:

<?php 

        session_start();

        if(isset($_GET['nome']) && $_GET['nome'] != ''){
            $tarefa = array();
            $tarefa["nome"] = $_GET["nome"];

        if(isset($_GET['descricao'])){
            $tarefa['descricao'] = $_GET["descricao"];
        }else{

            $tarefa['descricao'] = '';
        }

        if(isset($_GET["prazo"])){

            $tarefa['prazo'] = $_GET['prazo'];

        }else{

            $tarefa['prazo'] = '';
        }

        $tarefa['prioridade'] = $_GET['prioridade'];

        if(isset($_GET['concluida'])){
            $tarefa['concluida'] = $_GET["concluida"];
        }else{

            $tarefa['concluida'] = '';
        }

        $_SESSION['lista_tarefas'] = array($tarefa);


        }

        include "template.php";

And in the part of view

Errors given:

Notice: Undefined variable: task_list in

Warning: Invalid argument supplied for foreach () in

Does anyone know how to display and not show these errors?

php

asked by anonymous 07.07.2017 / 21:58

1 answer

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score 0 · Accepted Answer

The problem is that you are trying to access an undefined variable.

<?php foreach($lista_tarefas as $tarefa){ ?>
    <tr>
        <td><?=$tarefa['nome'];?></td>
        <td><?=$tarefa['descricao'];?></td>
        <td><?=$tarefa['prazo'];?></td>
        <td><?=$tarefa['prioridade'];?></td>
        <td><?=$tarefa['concluida'];?></td>
    </tr>
<?php } ?>

In this section you use $lista_tarefas as if it were set equal to $_SESSION["lista_tarefas"] , but this conversion of the session to a variable is not done by itself. You need to set the value of the variable:

$lista_tarefas = $_SESSION["lista_tarefas"];