按键值对PHP中的JSON对象进行排序 [英] Sort JSON object in PHP by a key value
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问题描述
我需要通过PHP脚本中的得分"值对此类信息进行排序,我该怎么办? :
I need to sort this kind of information by the "score" value in a PHP script, how can I do? :
Array
(
[0] => stdClass Object
(
[name] => Morts par Déshydratation
[score] => 4
[id] => dwater
)
[1] => stdClass Object
(
[name] => Réparations de chantiers
[score] => 87
[id] => brep
)
[2] => stdClass Object
(
[name] => Campeur téméraire
[score] => 77
[id] => camp
)
[3] => stdClass Object
(
[name] => Décoration
[score] => 112
[id] => deco
)
)
PS:这已经在一个PHP值中,我已经使用了json_decode.*
PS : This is already in a PHP value, I already used json_decode.*
推荐答案
其中$data
看起来像这样:
Array
(
[0] => stdClass Object
(
[name] => Morts par Déshydratation
[score] => 4
[id] => dwater
)
[1] => stdClass Object
(
[name] => Réparations de chantiers
[score] => 87
[id] => brep
)
[.] => ....
)
您可以使用usort()
对数组进行排序:
You can use usort()
to sort the array :
<?php
usort($data, function($a, $b) { //Sort the array using a user defined function
return $a->score > $b->score ? -1 : 1; //Compare the scores
});
print_r($data);
?>
输出:
Array
(
[0] => stdClass Object
(
[name] => Décoration
[score] => 112
[id] => deco
)
[1] => stdClass Object
(
[name] => Réparations de chantiers
[score] => 87
[id] => brep
)
[2] => stdClass Object
(
[name] => Campeur téméraire
[score] => 77
[id] => camp
)
[3] => stdClass Object
(
[name] => Drogues
[score] => 49
[id] => drug
)
[4] => stdClass Object
(
[name] => Ouverture de porte
[score] => 11
[id] => door
)
[5] => stdClass Object
(
[name] => Morts par Déshydratation
[score] => 4
[id] => dwater
)
)
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