拆分關聯數組

Question

我想分割一個關聯數組，但發生的是它只是刪除它的鍵並按升序排列。我想用鍵和值來獲得關聯數組的前5個元素。

$AllQuestions = Question::model()->findAll($criteria); 
     foreach ($AllQuestions as $aq) { 
      $question = array(); 
      $question[$aq->id] = $aq->question; 
      if ($aq->type == "Realistic") { 
       $testViewModel->RealisticQuestions[$aq->id] = $aq->question; 
      } else if ($aq->type == "Investigative") { 
       $testViewModel->InvestigativeQuestions[$aq->id] = $aq->question; 
      } else if ($aq->type == "Conventional") { 
       $testViewModel->ConventionalQuestions[$aq->id] = $aq->question; 
      } else if ($aq->type == "Enterprising") { 
       $testViewModel->EnterpriseQuestions[$aq->id] = $aq->question; 
      } else if ($aq->type == "Social") { 
       $testViewModel->SocialQuestions[$aq->id] = $aq->question; 
      } else if ($aq->type == "Artistic") { 
       $testViewModel->ArtisticQuestions[$aq->id] = $aq->question; 
      } 
     } 
     $testViewModel->InvestigativeQuestions = array_slice($testViewModel->InvestigativeQuestions, 0, $maxQuestions); 
     $testViewModel->ArtisticQuestions = array_slice($testViewModel->ArtisticQuestions, 0, $maxQuestions); 
     $testViewModel->ConventionalQuestions = array_slice($testViewModel->ConventionalQuestions, 0, $maxQuestions); 
     $testViewModel->EnterpriseQuestions = array_slice($testViewModel->EnterpriseQuestions, 0, $maxQuestions); 
     $testViewModel->SocialQuestions = array_slice($testViewModel->SocialQuestions, 0, $maxQuestions); 
     $testViewModel->RealisticQuestions = array_slice($testViewModel->RealisticQuestions, 0, $maxQuestions); 

Answer 1

您可以使用array_slice

$new_array = array_slice($old_array, 0, 5, true); 

Answer 2

Use it: 

$testViewModel->InvestigativeQuestions = array_slice($testViewModel->InvestigativeQuestions, 0, $maxQuestions, true); 
$testViewModel->ArtisticQuestions = array_slice($testViewModel->ArtisticQuestions, 0, $maxQuestions, true); 
$testViewModel->ConventionalQuestions = array_slice($testViewModel->ConventionalQuestions, 0, $maxQuestions, true); 
$testViewModel->EnterpriseQuestions = array_slice($testViewModel->EnterpriseQuestions, 0, $maxQuestions, true); 
$testViewModel->SocialQuestions = array_slice($testViewModel->SocialQuestions, 0, $maxQuestions, true); 
$testViewModel->RealisticQuestions = array_slice($testViewModel->RealisticQuestions, 0, $maxQuestions, true);