PDO 查询未插入 - HY093 错误消息但绑定变量的数量正确

Question

代码

$dbh->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING );
$stmt = $dbh->prepare($query);
print_r($fullStmt);

if(!$stmt->execute($fullStmt))
{
    print_r($stmt->errorInfo());
    $full_query = "INSERT INTO `fixtures` (competition_code,competition_id,competition_name,season_id,season_name,
    timestamp,uid,last_modified,matchday,period,matchwinner,date,team1,team1_halfscore,team1_score,team1_goals,
    team1_side,team2,team2_halfscore,team2_score,team2_goals,team2_side) VALUES (";
    foreach($fullStmt as $val){ $full_query.= "'$val', "; }
    $full_query = trim($full_query, ", ");
    $full_query.= ");";
    exit($full_query);
}

输出

Array
(
    [competition_code] => EN_PR
    [competition_id] => 8
    [competition_name] => English Barclays Premier League
    [season_id] => 2013
    [season_name] => Season 2013/2014
    [timestamp] => 2013-10-30 09-03-49
    [uid] => g695281
    [last_modified] => 2013-10-15T12:35:58+00:00
    [matchday] => 1
    [period] => FullTime
    [matchwinner] => t7
    [date] => 2013-08-17 15:00:00 BST
    [team1] => t3
    [team1_halfscore] => 1
    [team1_score] => 1
    [team1_goals] => p44346/#/Goal
    [team1_side] => Home
    [team2] => t7
    [team2_halfscore] => 1
    [team2_score] => 3
    [team2_goals] => p54861/#/Goal//p83564/#/Goal//p54861/#/Penalty
    [team2_side] => Away
)
Array
(
    [0] => HY093
    [1] => 
    [2] => 
)
INSERT INTO `fixtures` (competition_code,competition_id,competition_name,season_id,season_name,
            timestamp,uid,last_modified,matchday,period,matchwinner,date,team1,team1_halfscore,team1_score,team1_goals,
            team1_side,team2,team2_halfscore,team2_score,team2_goals,team2_side) VALUES ('EN_PR', '8', 'English Barclays Premier League', '2013', 'Season 2013/2014', '2013-10-30 09-03-49', 'g695281', '2013-10-15T12:35:58+00:00', '1', 'FullTime', 't7', '2013-08-17 15:00:00 BST', 't3', '1', '1', 'p44346/#/Goal', 'Home', 't7', '1', '3', 'p54861/#/Goal//p83564/#/Goal//p54861/#/Penalty', 'Away');

概述

$fullStmt 是一个值数组，我有一个查询如下：

$query = "INSERT INTO `fixtures` (
                competition_code,
                competition_id,
                competition_name,
                season_id,
                season_name,
                timestamp,
                uid,
                last_modified,
                matchday,
                period,
                matchwinner,
                date,
                team1,
                team1_halfscore,
                team1_score,
                team1_goals,
                team1_side,
                team2,
                team2_halfscore,
                team2_score,
                team2_goals,
                team2_side
                ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";

但是，当尝试执行时，它返回FALSE。我输出结果查询，当直接将其插入 phpMyAdmin 时，它插入成功。

为什么我在phpMyAdmin的SQL字段中运行代码时插入没有问题，而在PHP中执行时却没有？

Answer 1

在为自己进行测试之前，我不确定 PDO 中的这种行为，但由于您在 $fullStmt 中的值数组是一个 关联 数组，因此 PDO 实际上正在尝试绑定命名基于其数组键的参数。您最初准备的语句使用位置 ? 占位符，因此命名参数不存在（并且它们不能与 ? 混合）。

因此，您需要消除 PDO 的数组键，以便正确地将数组值与其位置占位符绑定。这很容易通过在数组上调用array_values() 来完成，因为它被传递给execute()。

// Strip off the associative array keys...
if(!$stmt->execute(array_values($fullStmt))) {
   // etc
}

请注意，PDO 对数组顺序的正确解释取决于其值的开始顺序是否完全正确。您的 $fullStmt 数组确实以正确的顺序排列，无论您以何种方式生成它。但是，如果该过程发生变化，则删除数组键可能会导致您的 INSERT 语句将值放入错误的列中。重构语句生成以在 VALUES () 列表中使用命名参数（如 :competition_code）并继续使用关联数组来防止这个潜在的触发点可能是值得的。