php，Laravel-使用通配符搜索数组并返回数组结果 [英] Php, Laravel - search array with wildcard key and return array results

问题描述

php:

$getallvalues

给我会话中的数组:

array:7 [▼
  "_token" => "ZCP63uasUQHl948oVVDG7ZO4x33"
  "_previous" => array:1 [▶]
  "flash" => array:2 [▶]
  "key1" => "1"
  "key2" => "2"
  "id-2" => "2"
  "id-3" => "3"
]

如何使用通配符"id-"检索一个新的数组，以得到结果:

How to retrieve a new one array with wildcard key "id-" to give me the result:

 array:2 [▼
      "id-2" => "2"
      "id-3" => "3"
    ]

我尝试了一些php方法，例如:array_values，in_array等，但没有任何效果.

I tryed some php methods like: array_values, in_array etc but nothing works as I expected.

推荐答案

我找到了一个更好的解决方案，仅在两行中没有foreach代码！

I found a better solution without foreach code in 2 lines only!!

$resultsession = preg_grep('/^id-[\d]*/', array_keys($getallsession));
$result = array_flip($resultsession);

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