Array(
['some_first_category'] => Array(
['some_first_name'] => Array(
[0]=>'first@email.com',
[1]=>'second@email.com',
[2]=>'third@email.com',
[3]=>'fourth@email.com' )
['some_second_name'] => Array (
[1]=>'first@email.com',
[2]=>'second@email.com')
['some_third_name'] => Array(
[1]=>'first@email.com',
[2]=>'second@email.com',
[3]=>'third@email.com',
[4]=>'fourth@email.com' )
['some_second_category'] => Array(
['some_first_name'] => Array(
[0]=>'first@email.com' )
['some_second_name'] => Array(
[1]=>'first@email.com',
[2]=>'second@email.com',
[3]=>'third@email.com',
[4]=>'fourth@email.com')
['some_third_name'] => Array(
[1]=>'first@email.com',
[2]=>'second@email.com'))
我想通过具有名称的值的数量对数组进行排序,在我的情况下,我想成为这个数组：
Array(
['some_first_category'] => Array(
['some_third_name'] => Array(
[1]=>'first@email.com',
[2]=>'second@email.com',
[3]=>'third@email.com',
[4]=>'fourth@email.com' )
['some_first_name'] => Array(
[0]=>'first@email.com',
[1]=>'second@email.com',
[2]=>'third@email.com',
[3]=>'fourth@email.com' )
['some_second_name'] => Array (
[1]=>'first@email.com',
[2]=>'second@email.com')
['some_second_category'] => Array(
['some_second_name'] => Array(
[1]=>'first@email.com',
[2]=>'second@email.com',
[3]=>'third@email.com',
[4]=>'fourth@email.com')
['some_third_name'] => Array(
[1]=>'first@email.com',
[2]=>'second@email.com')
['some_first_name'] => Array(
[0]=>'first@email.com' ))
这意味着按名称按名称值的数量(计数)对类别进行排序.有人可以帮帮我吗？
提前致谢,
亚伦
解决方法:
你需要的只是uasort
uasort($list, function ($a, $b) {
$a = count($a);
$b = count($b);
return ($a == $b) ? 0 : (($a < $b) ? -1 : 1);
});
完整的例子
$list = Array(
'some_first_category' => Array(
'some_first_name' => Array(
0=>'first@email.com',
1=>'second@email.com',
2=>'third@email.com',
3=>'fourth@email.com' ),
'some_second_name' => Array (
1=>'first@email.com',
2=>'second@email.com'),
'some_third_name' => Array(
1=>'first@email.com',
2=>'second@email.com',
3=>'third@email.com',
4=>'fourth@email.com' )
),
'some_second_category' => Array(
'some_first_name' => Array(
0=>'first@email.com' ),
'some_second_name' => Array(
1=>'first@email.com',
2=>'second@email.com',
3=>'third@email.com',
4=>'fourth@email.com'),
'some_third_name' => Array(
1=>'first@email.com',
2=>'second@email.com'))
);
$list = array_map(function ($v) {
uasort($v, function ($a, $b) {
$a = count($a);
$b = count($b);
return ($a == $b) ? 0 : (($a < $b) ? 1 : - 1);
});
return $v;
}, $list);
print_r($list);
产量
Array
(
[some_first_category] => Array
(
[some_first_name] => Array
(
[0] => first@email.com
[1] => second@email.com
[2] => third@email.com
[3] => fourth@email.com
)
[some_third_name] => Array
(
[1] => first@email.com
[2] => second@email.com
[3] => third@email.com
[4] => fourth@email.com
)
[some_second_name] => Array
(
[1] => first@email.com
[2] => second@email.com
)
)
[some_second_category] => Array
(
[some_second_name] => Array
(
[1] => first@email.com
[2] => second@email.com
[3] => third@email.com
[4] => fourth@email.com
)
[some_third_name] => Array
(
[1] => first@email.com
[2] => second@email.com
)
[some_first_name] => Array
(
[0] => first@email.com
)
)
)
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