How to sort an array with php

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How to sort an array with php

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#1 by (4 votes)

1

Well, I have a $produtos variable that gets the following array:

 array (size=6)
      0 => 
        array (size=4)
          'id' => string '107' (length=3)
          'nome' => string 'LAREIRA PEQ.' (length=12)
          'qtd' => float 43
          'total' => float 64500
      1 => 
        array (size=4)
          'id' => string '108' (length=3)
          'nome' => string 'CHORAQUERIA PEQ.' (length=16)
          'qtd' => float 60
          'total' => float 48000
      2 => 
        array (size=4)
          'id' => string '109' (length=3)
          'nome' => string 'JOGO DE FACAS' (length=13)
          'qtd' => float 90
          'total' => float 27000
      3 => 
        array (size=4)
          'id' => string '111' (length=3)
          'nome' => string 'PROVALEIRA' (length=10)
          'qtd' => float 100
          'total' => float 6000
      4 => 
        array (size=4)
          'id' => string '110' (length=3)
          'nome' => string 'COOLERS' (length=7)
          'qtd' => float 84
          'total' => float 21000
      5 => 
        array (size=4)
          'id' => string '112' (length=3)
          'nome' => string 'CHAMPANHEIRA' (length=12)
          'qtd' => float 28
          'total' => float 1962.64

How do I sort it by the qtd field, or in alphabetical order?

I am mounting the array like this:

while ($resultado = mysqli_fetch_object($consulta)) {

    // Array com dados do produto
    $curva[] = array(
        "id" => $resultado->id,
        "nome" => $resultado->nome,
        "qtd" => $qtd,
        "total" => $total
    );
}

I need to get the array and change the order of it. Can you do that?

php

asked by anonymous 07.03.2017 / 17:43

1 answer

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score 4 · Accepted Answer

To sort you can use uasort to be able to with a callback to navigate the contents of each array, the first parameter will be the current item and the second will be the next one, then you make the comparison and return true or false .

To sort from A-Z (alphabetical) you must use strcmp

Order by quantity:

<?php
$teste = array(
    array(
        'id' => '107',
        'nome' => 'LAREIRA PEQ.',
        'qtd' => 43,
        'total' => 64500
    ),
    array(
        'id' => '108',
        'nome' => 'CHORAQUERIA PEQ.',
        'qtd' => 60,
        'total' => 48000
    ),
    array(
        'id' => '109',
        'nome' => 'JOGO DE FACAS',
        'qtd' => 90,
        'total' => 27000
    ),
    array(
        'id' => '111',
        'nome' => 'PROVALEIRA',
        'qtd' => 100,
        'total' => 6000
    ),
    array(
        'id' => '110',
        'nome' => 'COOLERS',
        'qtd' => 84,
        'total' => 21000
    ),
    array(
        'id' => '112',
        'nome' => 'CHAMPANHEIRA',
        'qtd' => 28,
        'total' => 1962.64
    )
);

uasort($teste, function ($a, $b) {
    return $a['qtd'] < $b['qtd'];
    //Se quiser inverter a ordem basta trocar por return $a['qtd'] > $b['qtd'];
});

print_r($teste);

Order by name:

<?php
$teste = array(
    array(
        'id' => '107',
        'nome' => 'LAREIRA PEQ.',
        'qtd' => 43,
        'total' => 64500
    ),
    array(
        'id' => '108',
        'nome' => 'CHORAQUERIA PEQ.',
        'qtd' => 60,
        'total' => 48000
    ),
    array(
        'id' => '109',
        'nome' => 'JOGO DE FACAS',
        'qtd' => 90,
        'total' => 27000
    ),
    array(
        'id' => '111',
        'nome' => 'PROVALEIRA',
        'qtd' => 100,
        'total' => 6000
    ),
    array(
        'id' => '110',
        'nome' => 'COOLERS',
        'qtd' => 84,
        'total' => 21000
    ),
    array(
        'id' => '112',
        'nome' => 'CHAMPANHEIRA',
        'qtd' => 28,
        'total' => 1962.64
    )
);

uasort($teste, function ($a, $b) {
    return strcmp($a['nome'], $b['nome']);
    //Se quiser inverter a ordem basta trocar por return strcmp($b['nome'], $a['nome']);
});

print_r($teste);