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PHP查找数值数组中不重复最大和最小的10个数的方法_PHP

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Release: 2016-05-30 15:09:30
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本文实例讲述了PHP查找数值数组中不重复最大和最小的10个数的方法。分享给大家供大家参考。具体如下:

1. php代码如下:

//随机生成1万个元素的数组
for($i=0;$i<10000;$i++){
 $ary[]=rand(1,100000);
}
$ary=array_unique($ary); //去重复数值
sort($ary);//顺序排序
$min_10=array_slice($ary,0, 10);//取出最小的10个数值
$max_10=array_slice($ary,-10, 10);//取出最大的10个数值
rsort($max_10);//倒序排序最大的10个数值
echo '<pre class="brush:php;toolbar:false">';
print_r($min_10);
print_r($max_10);
unset($ary,$min_10,$max_10);
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2. 运行结果如下:

Array
(
  [0] => 16
  [1] => 19
  [2] => 22
  [3] => 31
  [4] => 40
  [5] => 49
  [6] => 71
  [7] => 74
  [8] => 80
  [9] => 92
)
Array
(
  [0] => 99997
  [1] => 99991
  [2] => 99973
  [3] => 99958
  [4] => 99955
  [5] => 99946
  [6] => 99939
  [7] => 99933
  [8] => 99927
  [9] => 99900
)
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希望本文所述对大家的php程序设计有所帮助。

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