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PHP按指定键值对二维数组进行排序的方法_PHP

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Release: 2016-05-29 11:47:40
Original
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本文实例讲述了PHP按指定键值对二维数组进行排序的方法。分享给大家供大家参考,具体如下:

问题:

有数组:

代码如下:

array(0=>array('id'=>1,'price'=>50),1=>array('id'=>2,'price'=>60));


要求根据数组的price这个字段进行排序。

实现代码如下:

<&#63;php 
$array[] = array('id'=>1,'price'=>50);
$array[] = array('id'=>2,'price'=>70);
$array[] = array('id'=>3,'price'=>30);
$array[] = array('id'=>4,'price'=>20);
foreach ($array as $key=>$value){
  $id[$key] = $value['id'];
  $price[$key] = $value['price'];
}
array_multisort($price,SORT_NUMERIC,SORT_DESC,$id,SORT_STRING,SORT_ASC,$array);
echo '<pre class="brush:php;toolbar:false">';
print_r($array);
echo '
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'; ?>

运行结果:

Array
(
[0] => Array
(
[id] => 2
[price] => 70
)
[1] => Array
(
[id] => 1
[price] => 50
)
[2] => Array
(
[id] => 3
[price] => 30
)
[3] => Array
(
[id] => 4
[price] => 20
)
)

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希望本文所述对大家PHP程序设计有所帮助。

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