僅當值爲

Question

時纔回顯字段要避免在屏幕上顯示打開的行，如何才能達到5個vip字段，只有在其中存在值時纔回顯？

感謝，尼

$db = new mysqli('host', 'user', 'pass', 'dbase'); 
if (mysqli_connect_errno()) { 
    printf("Connect failed: %s\n", mysqli_connect_error()); 
    exit(); 
} 
$query = " 
    SELECT 
     user.FName, 
     user.LName, 
     user.HerbalifeID, 
     user.UplineS, 
     registratie.PartnerFName as pfn, 
     registratie.PartnerLName as pln, 
     registratie.NaamVIP1 as vip1, 
     registratie.NaamVIP2 as vip2, 
     rgistratie.NaamVIP3 as vip3, 
     registratie.NaamVIP4 as vip4, 
     registratie.NaamVIP5 as vip5 
    FROM 
     registratie 

    INNER JOIN user 
     ON registratie.userID = user.UserID 
     AND registratie.eventID =127; 
"; 
$result = $db->query($query) or die($db->error.__LINE__); 

if ($result->num_rows) { 
    while ($row = $result->fetch_object()) { 
     echo "{$row->FName} {$row->LName} {$row->HerbalifeID} {$row->pfn} {$row->pln}<br> 
     {$row->vip1}{$row->vip2}{$row->vip3}{$row->vip4}{$row->vip5})<br><br>"; //only 
    } 
} else { 
    echo 'No Results'; 
} 

Answer 1

if(!empty({$row->vip1}) and !empty({$row->vip2}) and !empty({$row->vip3}) and !empty({$row->vip4}) and !empty({$row->vip5})){ 
    echo "{$row->FName} {$row->LName} {$row->HerbalifeID} {$row->pfn} {$row->pln}<br>{$row->vip1}{$row->vip2}{$row->vip3}{$row->vip4}{$row->vip5})<br><br>"; 
}else{ 
    echo "{$row->FName} {$row->LName} {$row->HerbalifeID} {$row->pfn} {$row->pln})<br><br>"; 

} 

Answer 2

我不知道如果我得到它。 如果你想，只有當所有嘉賓都充滿打印，使用下面的代碼：

//... 
$range = range(1,5); 
while ($row = $result->fetch_object()) { 

    //This will be printed in every iteration 
    echo "{$row->FName} {$row->LName} {$row->HerbalifeID} {$row->pfn} {$row->pln}"; 

    //if one of the vips has no value, go to the next $row 
    foreach($range as $r){ 
     $vipColumn = "vip$r"; 
     if(empty($row->$vipColumn)){ 
      continue 2; //breaks both 'foreach' and 'while' loops 
     } 
    } 

    //This only echo when all vips has values 
    echo "<br>{$row->vip1}{$row->vip2}{$row->vip3}{$row->vip4}{$row->vip5})<br><br>"; 

} 
//...