Php 插入到表中的重复数据集
为什么这段代码会插入重复的数据集 下面是传递给函数的Php 插入到表中的重复数据集,php,mysql,arrays,loops,Php,Mysql,Arrays,Loops,为什么这段代码会插入重复的数据集 下面是传递给函数的$特许经营数组（2=count（$特许经营））： ( [0] => Array ( [franchise_id] => 3 [franchisor_id] => 3 [franchise_name] => Fitness Freaks ) [1] => Array (
$特许经营2=count（$特许经营）(
[0] => Array
(
[franchise_id] => 3
[franchisor_id] => 3
[franchise_name] => Fitness Freaks
)
[1] => Array
(
[franchise_id] => 4
[franchisor_id] => 3
[franchise_name] => Gyms Galore
)
)
for循环public static function setLeadData($franchises)
{
try
{
$db = static::getDB();
$sql = "INSERT INTO leads_franchises SET
franchise_id = :franchise_id,
franchisor_id = :franchisor_id,
franchise_name = :franchise_name";
$stmt = $db->prepare($sql);
for($i = 0; $i < count($franchises); $i++)
{
$result = $stmt->execute([
':franchise_id' => $franchises[$i]['franchise_id'],
':franchisor_id' => $franchises[$i]['franchisor_id'],
':franchise_name' => $franchises[$i]['franchise_name']
]);
}
return $result;
}
catch(PDOException $e)
{
echo $e->getMessage();
exit();
}
}
foreach循环中包含MySQL组件的函数：
public static function setLeadData($franchises)
{
try
{
$db = static::getDB();
foreach($franchises as $franchise)
{
$sql = "INSERT INTO leads_franchises SET
franchise_id = :franchise_id,
franchisor_id = :franchisor_id,
franchise_name = :franchise_name";
$stmt = $db->prepare($sql);
$result = $stmt->execute([
':franchise_id' => $franchise['franchise_id'],
':franchisor_id' => $franchise['franchisor_id'],
':franchise_name' => $franchise['franchise_name']
]);
}
return $result;
}
catch(PDOException $e)
{
echo $e->getMessage();
exit();
}
}
public static function setLeadData($franchises)
{
try
{
$db = static::getDB();
$sql = "INSERT INTO leads_franchises SET
franchise_id = :franchise_id,
franchisor_id = :franchisor_id,
franchise_name = :franchise_name";
foreach($franchises as $franchise)
{
$stmt = $db->prepare($sql);
$result = $stmt->execute([
':franchise_id' => $franchise['franchise_id'],
':franchisor_id' => $franchise['franchisor_id'],
':franchise_name' => $franchise['franchise_name']
]);
}
return $result;
}
catch(PDOException $e)
{
echo $e->getMessage();
exit();
}
}
public static function setLeadData($franchises)
{
try
{
$db = static::getDB();
$sql = "INSERT INTO leads_franchises (franchise_id, franchisor_id, franchise_name)
VALUES (:franchise_id, :franchisor_id, :franchise_name)";
$stmt = $db->prepare($sql);
foreach($franchises as $franchise)
{
$stmt->bindParam(':franchise_id', $franchise['franchise_id']);
$stmt->bindParam(':franchisor_id', $franchise['franchisor_id']);
$stmt->bindParam(':franchise_name', $franchise['franchise_name']);
$result = $stmt->execute();
}
return $result;
}
catch(PDOException $e)
{
echo $e->getMessage();
exit();
}
}
下面是在foreach循环中使用stmt=$db->prepare（$sql）
的函数：
public static function setLeadData($franchises)
{
try
{
$db = static::getDB();
foreach($franchises as $franchise)
{
$sql = "INSERT INTO leads_franchises SET
franchise_id = :franchise_id,
franchisor_id = :franchisor_id,
franchise_name = :franchise_name";
$stmt = $db->prepare($sql);
$result = $stmt->execute([
':franchise_id' => $franchise['franchise_id'],
':franchisor_id' => $franchise['franchisor_id'],
':franchise_name' => $franchise['franchise_name']
]);
}
return $result;
}
catch(PDOException $e)
{
echo $e->getMessage();
exit();
}
}
public static function setLeadData($franchises)
{
try
{
$db = static::getDB();
$sql = "INSERT INTO leads_franchises SET
franchise_id = :franchise_id,
franchisor_id = :franchisor_id,
franchise_name = :franchise_name";
foreach($franchises as $franchise)
{
$stmt = $db->prepare($sql);
$result = $stmt->execute([
':franchise_id' => $franchise['franchise_id'],
':franchisor_id' => $franchise['franchisor_id'],
':franchise_name' => $franchise['franchise_name']
]);
}
return $result;
}
catch(PDOException $e)
{
echo $e->getMessage();
exit();
}
}
public static function setLeadData($franchises)
{
try
{
$db = static::getDB();
$sql = "INSERT INTO leads_franchises (franchise_id, franchisor_id, franchise_name)
VALUES (:franchise_id, :franchisor_id, :franchise_name)";
$stmt = $db->prepare($sql);
foreach($franchises as $franchise)
{
$stmt->bindParam(':franchise_id', $franchise['franchise_id']);
$stmt->bindParam(':franchisor_id', $franchise['franchisor_id']);
$stmt->bindParam(':franchise_name', $franchise['franchise_name']);
$result = $stmt->execute();
}
return $result;
}
catch(PDOException $e)
{
echo $e->getMessage();
exit();
}
}
（编辑添加）：下面是在foreach循环中使用bindParam
的函数：
public static function setLeadData($franchises)
{
try
{
$db = static::getDB();
foreach($franchises as $franchise)
{
$sql = "INSERT INTO leads_franchises SET
franchise_id = :franchise_id,
franchisor_id = :franchisor_id,
franchise_name = :franchise_name";
$stmt = $db->prepare($sql);
$result = $stmt->execute([
':franchise_id' => $franchise['franchise_id'],
':franchisor_id' => $franchise['franchisor_id'],
':franchise_name' => $franchise['franchise_name']
]);
}
return $result;
}
catch(PDOException $e)
{
echo $e->getMessage();
exit();
}
}
public static function setLeadData($franchises)
{
try
{
$db = static::getDB();
$sql = "INSERT INTO leads_franchises SET
franchise_id = :franchise_id,
franchisor_id = :franchisor_id,
franchise_name = :franchise_name";
foreach($franchises as $franchise)
{
$stmt = $db->prepare($sql);
$result = $stmt->execute([
':franchise_id' => $franchise['franchise_id'],
':franchisor_id' => $franchise['franchisor_id'],
':franchise_name' => $franchise['franchise_name']
]);
}
return $result;
}
catch(PDOException $e)
{
echo $e->getMessage();
exit();
}
}
public static function setLeadData($franchises)
{
try
{
$db = static::getDB();
$sql = "INSERT INTO leads_franchises (franchise_id, franchisor_id, franchise_name)
VALUES (:franchise_id, :franchisor_id, :franchise_name)";
$stmt = $db->prepare($sql);
foreach($franchises as $franchise)
{
$stmt->bindParam(':franchise_id', $franchise['franchise_id']);
$stmt->bindParam(':franchisor_id', $franchise['franchisor_id']);
$stmt->bindParam(':franchise_name', $franchise['franchise_name']);
$result = $stmt->execute();
}
return $result;
}
catch(PDOException $e)
{
echo $e->getMessage();
exit();
}
}
每个版本产生相同的副本
显然，我很沮丧。我非常希望理解为什么以及如何使用这段代码导致重复
非常感谢您的帮助
函数执行后的表：
更新
为了帮助任何可能遇到此问题的人，我想发布重复的原因。经验证，功能代码是正确的
错误出现在Ajax代码中。表格提交了两次。由提供的解决方案是
除了e.preventDefault（）
，我还需要添加e.stopImmediatePropagation
jQuery Ajax的提交部分如下所示：
$("#form").submit(function(e) {
e.preventDefault();
e.stopImmediatePropagation();
....
我测试了以下样本，没有出现重复：
class Franchises
{
protected static function getDB()
{
$conn = NULL;
try
{
$conn = new PDO("mysql:host=127.0.0.1;dbname=franchises_db", "dbuser", "dbpassword");
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
}
catch(PDOException $e)
{
echo $e->getMessage();
exit();
}
return $conn;
}
public static function setLeadData($franchises)
{
try
{
$db = static::getDB();
$sql = "INSERT INTO leads_franchises SET
franchise_id = :franchise_id,
franchisor_id = :franchisor_id,
franchise_name = :franchise_name";
$stmt = $db->prepare($sql);
foreach($franchises as $franchise)
{
$result = $stmt->execute([
':franchise_id' => $franchise['franchise_id'],
':franchisor_id' => $franchise['franchisor_id'],
':franchise_name' => $franchise['franchise_name']
]);
}
return $result;
}
catch(PDOException $e)
{
echo $e->getMessage();
exit();
}
}
}
$vals = [
[
"franchise_id" => 3,
"franchisor_id" => 3,
"franchise_name" => "Fitness Freaks"
],
[
"franchise_id" => 4,
"franchisor_id" => 3,
"franchise_name" => "Gyms Galore"
]
];
Franchises::setLeadData($vals);
leads_特许经营表创建代码为：
CREATE TABLE `leads_franchises` (
`id` INT(11) NOT NULL AUTO_INCREMENT,
`franchise_id` INT(11) NULL DEFAULT '0',
`franchisor_id` INT(11) NULL DEFAULT '0',
`franchise_name` VARCHAR(128) NULL DEFAULT '',
PRIMARY KEY (`id`)
)
COLLATE='utf8_general_ci'
ENGINE=InnoDB;
我弄糊涂了，哪一套有问题？您已经添加了4个sets@Ravi. 函数的每个变体都会产生相同的不需要的结果，即。复制我试图存储的记录。将debug\u print\u backtrace（）
放在函数开头，看看为什么要执行两次。@PaulSpiegel。谢谢我现在就来试试。@Spiegel函数将在哪里显示其结果？我的错误显示在console.log中，因为代码以jQuery Ajax请求开始。感谢您花时间完成此操作。我下一步计划在Ajax请求之外测试该功能，我想可能其中有个bug。我将复制您的测试，并让您知道我是否获得了预期的相同结果。我独立测试了该函数并获得了相同的结果，证明该函数是书面的。那么，我的问题的答案是，以各种形式编写的函数确实有效，因此我在其他地方有一个问题。谢谢你花时间回复我的帖子！