Iterating in a multidimensional array

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Iterating in a multidimensional array

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<?php
$data = array();
//questoes de user 1
$data['rows']['questions'][1] = array(
    array('id' => 1, 'type' => 'radio', 'name' => "Onde fica ilha de Santiago"),
    array('id' => 2, 'type' => 'radio', 'name' => "Onde fica tarafal"),
    array('id' => 3, 'type' => 'boolean', 'name' => "Cidade velha é a capital de Cabo Verde"),

);
$data['rows']['aresponses'][1] = array(
    '1' => array(
        array('id' => 1, 'name' => "No barlavanto"),
        array('id' => 2, 'name' => "No sotavento"),
        array('id' => 3, 'name' => "No norte do arquipélago"),
    ),
    '2' => array(
        array('id' => 1, 'name' => "Na ilha do fogo"),
        array('id' => 2, 'name' => "Na ilha de santiago"),
        array('id' => 3, 'name' => "Na ilha de brava"),
    ),
    '3' => array(
        array('id' => 1, 'name' => "Verdairo"),
        array('id' => 2, 'name' => "Falso"),
    ),

);
?>

Relating each tag to a list of response alternatives

Example:

>       Pergunta:  Onde fica ilha de Santiago
>               
>       Alternativa1:  No barlavanto
>       Alternativa2:  No sotavento
>       Alternativa2   No norte do arquipélago

php array-multidimensional

asked by anonymous 28.04.2016 / 02:09

1 answer

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score 0 · Answer 1

Friend, the index of the array containing the alternatives must start at 0, as well as the indexes containing the questions, so the iteration of the array between the questions and answers will look like this:

$data = array();
//questoes de user 1
$data['rows']['questions'][1] = array(
    array('id' => 1, 'type' => 'radio', 'name' => "Onde fica ilha de Santiago"),
    array('id' => 2, 'type' => 'radio', 'name' => "Onde fica tarafal"),
    array('id' => 3, 'type' => 'boolean', 'name' => "Cidade velha é a capital de Cabo Verde"),

);

$data['rows']['aresponses'][1] = array(
    0 => array(
        array('id' => 1, 'name' => "No barlavanto"),
        array('id' => 2, 'name' => "No sotavento"),
        array('id' => 3, 'name' => "No norte do arquipélago"),
    ),
    1 => array(
        array('id' => 1, 'name' => "Na ilha do fogo"),
        array('id' => 2, 'name' => "Na ilha de santiago"),
        array('id' => 3, 'name' => "Na ilha de brava"),
    ),
    2 => array(
        array('id' => 1, 'name' => "Verdairo"),
        array('id' => 2, 'name' => "Falso"),
    ),

);

$questoes      =  $data['rows']['questions'][1];

$alternativas  =  $data['rows']['aresponses'][1];

foreach ($questoes as $key => $value) {

    echo 'Questao: ' . $value['name'] . '<br />';

    echo 'Alternativas';

    foreach ($alternativas[$key] as $key2 => $value2 ) {

        echo 'Alternativa: ' . ($key2 + 1) . ' : ' . $value2['name'] . "<br />";

    }

    echo '<br /><br />';

}

To test the code outside of your project, try Here