PHP從數組中foreach循環比較值

Question

我有一個這樣的陣列（修剪）分配給$rows：

array (size=9) 
    0 => 
    array (size=2) 
     'room_category' => string 'MALE GENERAL WARD' (length=17) 
     'vacant_beds' => string 'MG-8,MG-2,MG-4,MG-6,MG-7' (length=24) 
    1 => 
    array (size=2) 
     'room_category' => string 'FEMALE GENERAL WARD' (length=19) 
     'vacant_beds' => string 'FG-4,FG-1,FG-2,FG-3' (length=19) 
    2 => 
    array (size=2) 
     'room_category' => string 'MOTHER CHILD WARD' (length=17) 
     'vacant_beds' => string 'MC-2,MC-4,MC-5,MC-6' (length=19) 
    3 => 
    array (size=2) 
     'room_category' => string 'TWIN' (length=4) 
     'vacant_beds' => string 'TW-A1,TW-A2,TW-B2,TW-C1,TW-C2' (length=29) 
    4 => 
    array (size=2) 
     'room_category' => string 'NICU' (length=4) 
     'vacant_beds' => string 'NICU-6,NICU-1,NICU-7,NICU-3,NICU-8,NICU-4,NICU-5' (length=48) 
    5 => 
    array (size=2) 
     'room_category' => string 'CLASSIC' (length=7) 
     'vacant_beds' => string 'CL-6,CL-8,CL-4,CL-5' (length=19) 
    6 => 
    array (size=2) 
     'room_category' => string 'DELUXE' (length=6) 
     'vacant_beds' => string 'DLX-5,DLX-6' (length=11) 
    7 => 
    array (size=2) 
     'room_category' => string 'EXECUTIVE' (length=9) 
     'vacant_beds' => null 
    8 => 
    array (size=2) 
     'room_category' => string 'AC GENERAL WARD' (length=15) 
     'vacant_beds' => string 'AG-5,AG-1,AG-2,AG-3,AG-4' (length=24) 

這個陣列被保存在$occupancies

array (size=21) 
    0 => 
    array (size=7) 
     'room_name' => string 'CL-12' (length=5) 
     'name' => string 'SHIBNATH PATEL' (length=14) 
     'ipd' => string '0724/15' (length=7) 
     'relation' => string '' (length=0) 
     'mobile' => string '9178174433' (length=10) 
     'district_city' => string 'SUNDARGARH' (length=10) 
     'admission_date' => string '2015-06-15 11:30:00' (length=19) 
    1 => 
    array (size=7) 
     'room_name' => string 'AG-7' (length=4) 
     'name' => string ' SHILPA GUPTA ' (length=14) 
     'ipd' => string '0734/15' (length=7) 
     'relation' => string 'D/0- PRADEEP KUMAR GUPTA ' (length=25) 
     'mobile' => string '9937384641' (length=10) 
     'district_city' => string 'SAMBALPUR' (length=9) 
     'admission_date' => string '2015-06-15 13:45:00' (length=19) 

現在我想顯示該數組中的值取決於我在foreach循環中的room_name的匹配。

我的代碼是這樣的：

$max_count = 0; 
$new_rows =[]; 
foreach ($rows as $key=>$row){ 
    $elements=[]; 
    if(!empty($row['vacant_beds'])){ 
     $elements = explode(',',$row['vacant_beds']); 

     if(sizeof($elements) > $max_count){ 
      $max_count = sizeof($elements); 
     } 
    } 
    $new_rows[]= [ 
     'name'=>$row['room_category'], 
     'elements'=>$elements, 
    ]; 


} 

foreach ($new_rows as $row){ 
     echo '<tr>'; 
     echo '<td>'.$row['name'] . '</td>'; 
     foreach($row['elements'] as $e){ 

     if ($occupancy['room_name']==$e) { 
     echo "<td style='background-color:#CCFFFF;'> 
     <div class='occupied'>MG-1<div id='occupied-hover'>  
     Patient Name - $occupancy_patient_name <br> IPD No. - $occupancy_ipd 
     <br>   
     Guardian - $occupancy_relation <br> Mobile - $occupancy_mobile <br> 
     Admission Date - $occupancy_admission_date   
     </div></div> </td>"; 

    }else{ 
     echo "<td style='background-color:#FFFFCC;'/>$e </td>"; 

    }  

我的問題是如何我可以遍歷$rows數組中的值正確地在上述foreach迭代顯示數組值。

Answer 1

您使用一些不必要的迭代，創建房間，其中的關鍵是房間的名字一個輔助字典：

$dict = array(); 
foreach($occupancies as $o) 
    $dict[$o['room_name']] = $o; // if you can have more than one person per room you need to have an array here with $dict[$o['room_name']][] = $o; 

以後你可以用這個字典查找的信息，例如：

if (isset($dict[$e])) { /* do the displaying work here */ }