Question

我有这个代码，我想比较来自db的数据和一个用户选择但似乎foreach($question_answers as $answer){ 并且foreach ($user_answer as $key => $value) {重复4次并不好，我需要一种方法来比较$user_answer用户从视图中选择请求的内容，以及订单$answer['order']来自数据库。所以我需要一个循环或东西比较这两个..任何帮助..？谢谢。

foreach($questions as $question) {

  $question_answers = OrderingAnswer::where('question_id', $question->id)
                    ->where('deleted',0)
                    ->get()
                    ->toArray();
  $users_answers = $request->except('_token', 'test_id');

  $user_answer = $users_answers[ $question->id];

  //  $user_answer ---> Array ( [0] => 1 [1] => 4 [2] => 3 [3] => 2 )
  foreach ($question_answers as  $answer) {
    //$answer['order'] ---> 1

    foreach ($user_answer as $key => $value) {
      if ($answer['order'] == $value ) {
        echo "ok ===>" .$value . "<br>" ;

      } else {
        echo "no   -------------------------------- >".$value  . "<br>" ;
      }
    }
  }

Answer 1

我试过这个 - 它完美无缺。（这个问题真的很有意思）

这里基本上我将多维数组值与单维数组值进行比较。它只会给你一系列匹配的结果。

<?php
$question_answers= array(
        array("id"=>251,'question_id'=>242,'order'=>1),
        array("id"=>252,'question_id'=>243,'order'=>2)
    );
$user_answers = array(1,4,3,2);

// you can just use this part
$question_answers = array_filter($question_answers, function($arr) use ($user_answers) {
    return in_array($arr['order'], $user_answers); 
});

echo "<pre>";
print_r($question_answers);
?>

循环重复比较数组

1 个答案: