運行腳本時出現錯誤

Question

執行此腳本時，請獲取此錯誤代碼警告：mysql_fetch_assoc（）：提供的參數不是/home/a777gqka/public_html/testserver/index.php上第47行的有效MySQL結果資源

$query = mysql_query("SELECT
e.id,
ts.name AS stage_name,
DATE_FORMAT(e.startdate, '2013-05-15') AS startdate,
DATE_FORMAT(e.startdate, 'H:i') AS starttime,
MIN(if( ep.number = 1, p.name, NULL)) AS home_team,
if(e.status_type = \"notstarted\", \"-\",(MIN(if(ep.number = 1, r.value, NULL))))  AS home_score,
if(e.status_type = \"notstarted\", \"-\",(MIN(if(ep.number = 2, r.value, NULL)))) AS away_score,
MIN(if(ep.number = 2, p.name, NULL)) AS away_team,
es.name AS status_text
FROM
tournament_template AS tt INNER JOIN
tournament AS t ON t.tournament_templateFK = tt.id INNER JOIN
tournament_stage AS ts ON t.id = ts.tournamentFK INNER JOIN
event AS e ON ts.id = e.tournament_stageFK INNER JOIN
event_participants AS ep ON e.id = ep.eventFK LEFT JOIN
status_desc AS es ON e.status_descFK = es.id LEFT JOIN
participant AS p ON ep.participantFK = p.id LEFT JOIN
result AS r ON ep.id = r.event_participantsFK AND r.result_code = \"runningscore\" LEFT JOIN
property AS prop ON e.id = prop.objectFK AND prop.object =\"event\" AND prop.name = \"Live\"
WHERE
tt.sportFK = ".$sportFK."  AND
e.startdate BETWEEN ".$TODAY_FROM." AND ".$TODAY_TO." AND
prop.value = \"yes\"
GROUP BY
e.id
ORDER BY 
ts.id, e.startdate, e.id");
while($row = mysql_fetch_assoc($query)){
// Do something
}

Answer 1

 $query = "SELECT .... ";
 if($result = mysql_query($query)){
     while($row = mysql_fetch_assoc($result)){
          //...
     }
 } else {
     echo mysql_error();
 }

除了輸出錯誤外，還應至少使用mysqli。 mysql_ *函數已被棄用，並將在PHP 5.5中刪除。

Answer 2

您沒有執行查詢。

在while循環之前添加$result = mysql_query($query)並將循環測試更改為$row = mysql_fetch_assoc($result)

另外，不建議使用mysql_ *函數，並且在以后的PHP更新中將其刪除。 切換到mysqli_ *或PDO。

我個人建議使用PDO。

Answer 3

$query = mysql_query("SELECT...") or die(mysql_error());
if ($query){
while($row = mysql_fetch_assoc($query)){
// Do something
}
}

Answer 4

請嘗試這個

if(mysql_num_rows($query) > 0){

   while($row = mysql_fetch_assoc($query)){
   // Do something
   }
}
else{
    echo "No record found";
}