Separate Array into groups and insert them into a pre-defined text

Question

I get a string in format:

[name, Qtd, price, name, Qtd, price...].

Ex: [Tomato Sauce, 12, 4.59, Popcorn, 5, 7.90...]

I want to separate every 3 commas an element and separate each element into 3 more subelements.

Ex: $pedido[i] = $subelemento_nome, $subelemento_qtd, $subelemento_preco;

$subelemento_nome[i];
$subelemento_qtd[i];
$subelemento_preco[i];

And for each element to return something like this:

$pedido[i] = "<p>".$subelemento_qtd[i]."x ". $subelemento_nome[i]." - R$ ".$subelemento_preco[i]."</p><br>";

Return:

<p>12x Molho de Tomate - R$ 4.59</p><br>
<p>5x Pipoca - 7.90</p><br>...

At the end of everything I will send the string $request to my database.

Answer 1

You can remove the brackets and separate all values by comma:

$texto = '[Molho de Tomate, 12, 4.59, Pipoca, 5, 7.90]';
$valores = explode(',', trim($texto, '[]'));

So you’ll have something like:

Array
(
    [0] => Molho de Tomate
    [1] =>  12
    [2] =>  4.59
    [3] =>  Pipoca
    [4] =>  5
    [5] =>  7.90
)

To take every three values, use the array_chunk:

$produtos = array_chunk($valores, 3);

Getting:

Array
(
    [0] => Array
        (
            [0] => Molho de Tomate
            [1] =>  12
            [2] =>  4.59
        )

    [1] => Array
        (
            [0] =>  Pipoca
            [1] =>  5
            [2] =>  7.90
        )

)

Then just go through this list $produtos and do as you wish.

For example:

$texto = '[Molho de Tomate, 12, 4.59, Pipoca, 5, 7.90]';
$valores = explode(',', trim($texto, '[]'));
$produtos = array_chunk($valores, 3);

foreach ($produtos as $produto) {
    list($nome, $qtd, $preco) = array_map('trim', $produto);

    $preco = number_format($preco, 2, ',', '');

    echo "<p>{$qtd}x {$nome} - R$ {$preco}</p>", PHP_EOL;
}

The exit will be:

<p>12x Molho de Tomate - R$ 4,59</p>
<p>5x Pipoca - R$ 7,90</p>