从关联数组php获取最小值及其相关值

Question

i have an array like this

$jartot = array(
    0 => array(
        'id_titik' => '1',
        'distance' => '300',
        'name_titik' => 'titik A',
    ),
    1 => array(
        'id_titik' => '2',
        'distance' => '412',
        'name_titik' => 'titik B',
    ),
    2 => array(
        'id_titik' => '3',
        'distance' => '130',
        'name_titik' => 'titik C',
    ),

);

i want to get value of min distance, and also get its id_titik. i trying use array_column to get min value of distance,

echo min(array_column($jartot, 'distance'));

but how to get its id_titik at the same time?

Answer 1

You might first sort the array using usort by distance and then get the values from the first array:

usort($jartot, function($a, $b){
    return $a['distance'] > $b['distance'];
});


echo $jartot[0]['id_titik']; // 3
echo $jartot[0]['distance']; // 130
echo $jartot[0]['name_titik']; // titik C

Demo

If there are multiple with the same distance you could use array_column to get the lowest value and use array_filter to filter the result where distance equals that value:

$min = min(array_column($jartot, 'distance'));
$results = array_filter($jartot, function($x) use ($min){
    return $x['distance'] === $min;
});

Demo