Сортировать 2D -массив по значениям поплавки столбца [дублировать] ⇐ Php

[Anonymous]

У меня есть следующий массив: < /p>

Array
(
[0] => Array
(
[Outcome] => 1
[Bookmaker] => PaddyPower
[Updated] => 2015-01-19T09:28:36
[Bet] => 1
[SP] => 4/5
[CP] => 17/20
[line] =>
[Decimal] => 0.85
)

[1] => Array
(
[Outcome] => 1
[Bookmaker] => BetFair
[Updated] => 2015-01-19T09:59:12
[Bet] => 1
[SP] => 1/25
[CP] => 43/50
[line] =>
[Decimal] => 0.86
)

[2] => Array
(
[Outcome] => 1
[Bookmaker] => BetVictor
[Updated] => 2015-01-19T10:29:38
[Bet] => 1
[SP] => 869/1000
[CP] => 869/1000
[line] =>
[Decimal] => 0.87
)

[3] => Array
(
[Outcome] => 1
[Bookmaker] => BetFred
[Updated] => 2015-01-19T09:28:30
[Bet] => 1
[SP] => 4/5
[CP] => 17/20
[line] =>
[Decimal] => 0.85
)

[4] => Array
(
[Outcome] => 1
[Bookmaker] => CoralBet
[Updated] => 2015-01-19T09:28:36
[Bet] => 1
[SP] => 73/100
[CP] => 83/100
[line] =>
[Decimal] => 0.83
)

[5] => Array
(
[Outcome] => 1
[Bookmaker] => Bet365
[Updated] => 2015-01-19T09:35:59
[Bet] => 1
[SP] => 73/100
[CP] => 83/100
[line] =>
[Decimal] => 0.83
)

[6] => Array
(
[Outcome] => 1
[Bookmaker] => WilliamHill
[Updated] => 2015-01-19T09:48:17
[Bet] => 1
[SP] => 4/5
[CP] => 83/100
[line] =>
[Decimal] => 0.83
)

[7] => Array
(
[Outcome] => 1
[Bookmaker] => SkyBet
[Updated] => 2015-01-19T09:29:48
[Bet] => 1
[SP] => 67/100
[CP] => 83/100
[line] =>
[Decimal] => 0.83
)

[8] => Array
(
[Outcome] => 1
[Bookmaker] => Ladbrokes
[Updated] => 2015-01-19T09:29:48
[Bet] => 1
[SP] => 3/4
[CP] => 4/5
[line] =>
[Decimal] => 0.8
)

)
< /code>

И я пытаюсь сортировать его по значению ключа «десятичное». < /p>

Я создал функцию Чтобы сделать своего рода по десятичному значению, но по какой -то причине, как вы можете видеть по моему вышеуказанному массиву, он не совсем сортирует, в том, что 0,86 является лучшим значением, чем 0,85. < /p>

usort($outcomes, 'sort_by_decimal');
function sort_by_decimal ($a, $b)
{
return $a['Decimal'] - $b['Decimal'];
}
< /code>

Спасибо. < /p>

Подробнее здесь: https://stackoverflow.com/questions/280 ... oat-values