基于值数组的密钥php

Question

我想基于值的数组使用组键。

例如，我有这样的数组：

array(17) { 
    ["user-insert-resp.php"]=> string(3) "123" 
    ["login.php"]=> string(3) "123" 
    ["project-list.php"]=> string(3) "123" 
    ["logout.php"]=> string(3) "123" 
    ["index.php"]=> string(3) "123" 
    ["project-view.php"]=> string(2) "13" 
    ["download.php"]=> string(2) "13" 
    ["sip-creator-resp.php"]=> string(2) "23" 
    ["project-remove-resp.php"]=> string(1) "2" 
    ["statistic.php"]=> string(2) "23" 
    ["graficoUsers.php"]=> string(2) "23" 
    ["statistic-topD.php"]=> string(2) "23" 
    ["statistic-topV.php"]=> string(2) "23" 
    ["user-edit-resp.php"]=> string(1) "3" 
    ["statistic-proj.php"]=> string(1) "3" 
    ["statistic-disc.php"]=> string(1) "3" 
    ["graficodisc.php"]=> string(1) "3" 
} 

，我想再拍数组是这样的：

123 => ["user-insert-resp.php","login.php","project-list.php","logout.php","sip-creator-resp.php"] 
13 => ["project-view.php","download.php"] 
23 => ["sip-creator-resp.php","statistic.php","statistic-topD.php","statistic-topV.php"] 
2 => ["project-remove-resp.php"]; 
3 => ["statistic-proj.php","statistic-disc.php","graficodisc.php"] 

Answer 1

这是你在找什么？

$data = array(); 
$data["user-insert-resp.php"] = "123"; 
$data["login.php"] = "123"; 
$data["project-view.php"] = "13"; 


$flipped_data = array(); 
foreach($data as $key=>$value){ 
    if(!isset($flipped_data[$value])){ 
     $flipped_data[$value] = array(); 
    } 
    $flipped_data[$value][] = $key; 
} 

结果：

Array ( 
[123] => Array ([0] => user-insert-resp.php [1] => login.php) 
[13] => Array ([0] => project-view.php) 
) 

Answer 2

你可以很容易地找到array_flip()在http://php.net/manual/en/function.array-flip.php。