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:
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//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>' ;
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:
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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。