我有一个需要排序的PHP数组。我在下面列出了示例数组。我需要将前10个URLS加上他们的透视计数放在不同的数组中。我知道如果没有10个顶级匹配，我可能遇到问题......如果发生这种情况，那么随机匹配就没问题了。
有什么建议吗？
我已经尝试过sort（myarray），但只是排序数组中的第一个对象，我需要它来排序第二个。
有什么想法吗？
Array
(
[0] => Array
(
[name] => http://bit.ly/2oUTzf
[count] => 1
)
[1] => Array
(
[name] => http://tiny.cc/wyNbi
[count] => 1
)
[2] => Array
(
[name] => http://ow.ly/Almo
[count] => 1
)
[3] => Array
(
[name] => http://bit.ly/7bQ8sY
[count] => 1
)
[4] => Array
(
[name] => http://kissa.be/w4V-
[count] => 5
)
[5] => Array
(
[name] => http://ow.ly/xzwI
[count] => 1
)
[6] => Array
(
[name] => http://twa.lk/L6FZX
[count] => 1
)
[7] => Array
(
[name] => http://tinyurl.com/Alyssa10
[count] => 1
)
[8] => Array
(
[name] => http://www.hiderefer.com/0cz7kNgA.htm
[count] => 1
)
[9] => Array
(
[name] => http://tinyurl.com/Joanie515
[count] => 1
)
[10] => Array
(
[name] => http://ow.ly/uJvB
[count] => 1
)
[11] => Array
(
[name] => http://tinyurl.com/
[count] => 1
)
[12] => Array
(
[name] => http://www.hiderefer.com/wJBUhh3G.htm
[count] => 1
)
[13] => Array
(
[name] => http://short.to/xcxc
[count] => 1
)
[14] => Array
(
[name] => http://bit.ly/t79FA
[count] => 2
)
[15] => Array
(
[name] => http://tinyurl.com/yzy33yl
[count] => 1
)
[16] => Array
(
[name] => http://p.gs/zksz6
[count] => 1
)
[17] => Array
(
[name] => http://bit.ly/7E1cc8
[count] => 1
)
[18] => Array
(
[name] => http://bit.ly/6hbugu
[count] => 1
)
[19] => Array
(
[name] => http://tii.libsyn.com/index.php
[count] => 6
)
[20] => Array
(
[name] => http://tinyurl.com/nlzzwq
[count] => 1
)
[21] => Array
(
[name] => http://bit.ly/7gAdXi
[count] => 1
)
[22] => Array
(
[name] => http://localtweeps.com
[count] => 1
)
[23] => Array
(
[name] => http://localtweeps.com.
[count] => 3
)
[24] => Array
(
[name] => http://scribd.com/doc/22365778
[count] => 1
)
[25] => Array
(
[name] => http://quick-weight-loss-secrets.com/
[count] => 1
)
[26] => Array
(
[name] => http://tinyurl.com/ykd5qm5
[count] => 1
)
[27] => Array
(
[name] => http://bit.ly/5DQ6SO
[count] => 1
)
[28] => Array
(
[name] => http://bit.ly/4z6Kww
[count] => 1
)
[29] => Array
(
[name] => http://bit.ly/40sm9N
[count] => 1
)
[30] => Array
(
[name] => http://bit.ly/8mh7DO
[count] => 5
)
[31] => Array
(
[name] => http://tinyurl.com/krt5yf
[count] => 1
)
[32] => Array
(
[name] => http://bit.ly/7GsthV
[count] => 1
)
[33] => Array
(
[name] => http://bit.ly/1QJzvM
[count] => 1
)
[34] => Array
(
[name] => http://yfrog.com/1durkj
[count] => 1
)
[35] => Array
(
[name] => http://budurl.com/dxwc
[count] => 9
)
[36] => Array
(
[name] => http://digg.com/d1qiCr
[count] => 1
)
[37] => Array
(
[name] => http://bit.ly/eVSIo
[count] => 1
)
[38] => Array
(
[name] => http://yfrog.com/37badgj
[count] => 2
)
[39] => Array
(
[name] => http://tinyurl.com/qh8sos
[count] => 1
)
[40] => Array
(
[name] => http://tinyurl.com/mz7l8d
[count] => 3
)
[41] => Array
(
[name] => http://tinyurl.com/nratac
[count] => 1
)
[42] => Array
(
[name] => http://tinyurl.com/yk587jx
[count] => 1
)
[43] => Array
(
[name] => http://www.bethel.edu/alumni/homecoming/09/events/
[count] => 1
)
[44] => Array
(
[name] => http://www.waytofit.net
[count] => 1
)
[45] => Array
(
[name] => http://twitpic.com/rdcy8
[count] => 1
)
[46] => Array
(
[name] => http://retwt.me/1C1Vd
[count] => 14
)
[47] => Array
(
[name] => http://www.starbucks.com/card
[count] => 1
)
[48] => Array
(
[name] => http://tinyurl.com/yhkbfqe
[count] => 13
)
[49] => Array
(
[name] => http://bit.ly/playspy
[count] => 1
)
[50] => Array
(
[name] => http://bit.ly/57rHLO
[count] => 12
)
答案 0 :(得分：2)
您需要编写自定义排序功能 - 如下所示：
function MyCustomSort($a, $b)
{
if ($a->count == $b->count) {
return 0;
}
return ($a->count < $b->count) ? -1 : 1;
}
然后你将该函数传递给一个排序 - 就像这样：
usort($myArray, "MyCustomSort");
您还可以编写一个函数来帮助您按网站排序 - 如下所示：
function MyCustomSort($a, $b)
{
if ($a->name == $b->name) {
return 0;
}
return ($a->name < $b->name) ? -1 : 1;
}
答案 1 :(得分：0)
function sortByCount($a, $b)
{
if ($a['count'] == $b['count']) {
return 0;
}
return ($a['count'] < $b['count']) ? -1 : 1;
}
usort($myarray, "sortByCount");
答案 2 :(得分：0)
您可以使用 decorate-sort-undecorate 模式。
<?php
$arr = Array
(
[0] => Array
(
[name] => http://bit.ly/2oUTzf
[count] => 1
)
[1] => Array
(
[name] => http://tiny.cc/wyNbi
[count] => 1
)
[2] => Array
(
[name] => http://ow.ly/Almo
[count] => 1
)
[3] => Array
(
[name] => http://bit.ly/7bQ8sY
[count] => 1
)
...
);
// actual sorting below
$arr= array_map(create_function('$a', 'return array($a["count"], $a);'), $arr); // transform into array of arrays consisted of sort key and item
sort($arr); // sort array of arrays
$arr = array_map('end', $arr); // take only last element from each array
print_r($arr);
不是对项目的数组进行排序，而是对最后一个元素为item的数组进行排序，并且首先是要对其进行排序的键。排序后，您只保留该项目。
您可以只使用sort对数组数组进行排序，因为PHP通过逐个比较其元素来比较两个相同长度的数组。
您可以使用多个排序键，例如按计数排序，如果计数相同，则将url考虑在内。您可以通过使用具有重要性顺序的多个键进行装饰来完成此操作：
$arr = array_map(create_function('$a', 'return array($a["count"], $a["name"], $a);'), $arr);
这种方式可能比使用usort更快，因为它只调用自定义代码n次以排序长度为n的数组。排序期间的比较是使用内置比较器完成的，因此应该很快。在usort方法中，自定义比较器在排序期间被多次调用（超过n次），这可能会减慢速度。