PHP計數MYSQL的行問題？

Question

我正在努力，如果我至少有一個團隊爲一個人創建，它會顯示團隊。如果他們沒有一個團隊，它會說沒有團隊。如果這個人至少有一個團隊，那麼它就可以工作，但是如果這個人不在團隊中，則什麼都不會顯示。我該如何解決？

<?php 

         $sql = mysql_query("SELECT * FROM teams WHERE players LIKE '%$sessiongamt%'") or die("Could not allocate information!"); 
           $num = 0; 
           while($row = mysql_fetch_assoc($sql)){ 
            $num = ++$num; 
         $amount1 = mysql_num_rows($sql); 
         $name = $row["name"]; 
            $teamrank = $row["rank"]; 
            $teamlink = $row["link"]; 
            $players = $row["players"]; 
         $teamid = $row['id']; 

         if($amount1 < 1){ 
          $teams = "No Teams"; 
          echo "$amount"; 
         }else{ 
          $teams = "$name"; 
          echo "<a href='$teamlink?id=$teamid'>$teams</a>"; 
         } 


         }print "$amount1"; 
        ?> 

Answer 1

看看這段代碼的第三行 - 把它放在你的代碼中，而不是你的行。

     if($amount1 < 1){ 
          $teams = "No Teams"; 
          echo $teams; 
         }else{ 
          $teams = "$name"; 
          echo "<a href='$teamlink?id=$teamid'>$teams</a>"; 
         } 

Answer 2

把外面的同時計數......循環

$sql = mysql_query("SELECT * FROM teams WHERE players LIKE '%$sessiongamt%'") or die("Could not allocate information!"); 

$amount1 = mysql_num_rows($sql); //<---- this should fix it 

$num = 0;   
while($row = mysql_fetch_assoc($sql)){ 
    $num = ++$num; 

    $name = $row["name"]; 
    $teamrank = $row["rank"]; 
    $teamlink = $row["link"]; 
    $players = $row["players"]; 

    $teamid = $row['id']; 

    $teams = "$name"; 
    echo "<a href='$teamlink?id=$teamid'>$teams</a>"; 
} 

if($amount1 < 1){ 
    $teams = "No Teams"; 
} 

print "$amount1"; 
?>