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Php PDO准备在单个查询中插入多行

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Php PDO准备在单个查询中插入多行,php,pdo,insert,prepared-statement,Php,Pdo,Insert,Prepared Statement,我目前正在MySQL上使用这种类型的SQL在一个查询中插入多行值： INSERT INTO `tbl` (`key1`,`key2`) VALUES ('r1v1','r1v2'),('r2v1','r2v2'),... 在PDO的阅读资料中，使用准备好的语句应该比静态查询提供更好的安全性 因此，我想知道是否可以使用准备好的语句生成“使用一个查询插入多行值” 如果是，我可以知道如何实现它吗？这不是您使用准备语句的方式 每个查询插入一行完全可以，因为您可以使用不同的参数多次执行一条准备好的语句。

我目前正在MySQL上使用这种类型的SQL在一个查询中插入多行值：

INSERT INTO `tbl` (`key1`,`key2`) VALUES ('r1v1','r1v2'),('r2v1','r2v2'),...
在PDO的阅读资料中，使用准备好的语句应该比静态查询提供更好的安全性

因此，我想知道是否可以使用准备好的语句生成“使用一个查询插入多行值”

如果是，我可以知道如何实现它吗？

这不是您使用准备语句的方式

每个查询插入一行完全可以，因为您可以使用不同的参数多次执行一条准备好的语句。事实上，这是最大的优势之一，因为它允许您以高效、安全和舒适的方式插入大量行

因此，实施您提议的方案是可能的，至少对于固定数量的行，但几乎可以保证这不是您真正想要的。

两种可能的方法：

$stmt = $pdo->prepare('INSERT INTO foo VALUES(:v1_1, :v1_2, :v1_3),
    (:v2_1, :v2_2, :v2_3),
    (:v2_1, :v2_2, :v2_3)');
$stmt->bindValue(':v1_1', $data[0][0]);
$stmt->bindValue(':v1_2', $data[0][1]);
$stmt->bindValue(':v1_3', $data[0][2]);
// etc...
$stmt->execute();
或：

如果所有行的数据都在一个数组中，我将使用第二种解决方案。

使用PDO准备的语句插入多个值

在一个execute语句中插入多个值。为什么，因为根据它比常规插入更快

$datafields = array('fielda', 'fieldb', ... );

$data[] = array('fielda' => 'value', 'fieldb' => 'value' ....);
$data[] = array('fielda' => 'value', 'fieldb' => 'value' ....);
更多数据值，或者您可能有一个填充数据的循环

使用准备好的插入，您需要知道要插入的字段，以及要创建插入的字段的数量？用于绑定参数的占位符

insert into table (fielda, fieldb, ... ) values (?,?...), (?,?...)....
这基本上就是我们希望insert语句的样子

现在，代码：

function placeholders($text, $count=0, $separator=","){
    $result = array();
    if($count > 0){
        for($x=0; $x<$count; $x++){
            $result[] = $text;
        }
    }

    return implode($separator, $result);
}

$pdo->beginTransaction(); // also helps speed up your inserts.
$insert_values = array();
foreach($data as $d){
    $question_marks[] = '('  . placeholders('?', sizeof($d)) . ')';
    $insert_values = array_merge($insert_values, array_values($d));
}

$sql = "INSERT INTO table (" . implode(",", $datafields ) . ") VALUES " .
       implode(',', $question_marks);

$stmt = $pdo->prepare ($sql);
$stmt->execute($insert_values);
$pdo->commit();

函数占位符（$text，$count=0，$separator=“，”）{
$result=array（）；
如果（$count>0）{
对于（$x=0；$xbeginTransaction（）；//也有助于加快插入速度。
$insert_values=array（）；
foreach（$d数据）{
$question_marks[]='（'.占位符（'？'），sizeof（$d））'；
$insert_values=array_merge（$insert_values，array_values（$d））；
}
$sql=“插入到表中（“.infrade（“，”，$datafields）。”）值”。
内爆（“，”，$问号）；
$stmt=$pdo->prepare（$sql）；
$stmt->execute（$insert_值）；
$pdo->commit（）；
虽然在我的测试中，当使用多个插入物和单值常规准备插入物时，只有1秒的差异。

与Balagtas先生的答案相同，稍微清晰一些

最新版本的MySQL和PHP PDOdo支持多行
INSERT
语句

SQL概述 SQL看起来像这样，假设您想要插入一个3列表

INSERT INTO tbl_name
            (colA, colB, colC)
     VALUES (?, ?, ?), (?, ?, ?), (?, ?, ?) [,...]

在重复密钥更新时
即使使用多行插入也能按预期工作；附加以下内容：

ON DUPLICATE KEY UPDATE colA = VALUES(colA), colB = VALUES(colB), colC = VALUES(colC)
PHP概述 PHP代码将遵循通常的
$pdo->prepare（$qry）
和
$stmt->execute（$params）
pdo调用

$params
将是传递给
插入的所有值的一维数组

在上面的示例中，它应该包含9个元素；PDO将使用每一组3作为一行值。（插入3行3列，每行=9个元素数组。）

实施
下面的代码是为了清晰而不是效率而编写的。如果您愿意，可以使用PHP
array_*（）
函数来更好地映射或遍历数据。是否可以使用事务显然取决于您的MySQL表类型

假设：


    

  • $tblName
    -要插入的表的字符串名称
    • 

  • $colNames
    -表的列名的一维数组
这些列名必须是有效的MySQL列标识符；如果不是，则用倒勾（``）转义
    • 

  • $dataVals
    -多维数组，其中每个元素都是一个一维数组，包含要插入的一行值
    • 


示例代码

一个简短的答案是：将按列排序的数据数组展平，然后


//$array = array( '1','2','3','4','5', '1','2','3','4','5');
$arCount = count($array);
$rCount = ($arCount  ? $arCount - 1 : 0);
$criteria = sprintf("(?,?,?,?,?)%s", str_repeat(",(?,?,?,?,?)", $rCount));
$sql = "INSERT INTO table(c1,c2,c3,c4,c5) VALUES$criteria";



当插入1000条左右的记录时，您不希望在只需要计算值的情况下循环遍历每个记录来插入它们。
对于它的价值，我看到许多用户建议迭代insert语句，而不是像所选答案那样构建为单个字符串查询。我决定运行simple测试只有两个字段和一个非常基本的insert语句：


<?php
require('conn.php');

$fname = 'J';
$lname = 'M';

$time_start = microtime(true);
$stmt = $db->prepare('INSERT INTO table (FirstName, LastName) VALUES (:fname, :lname)');

for($i = 1; $i <= 10; $i++ )  {
    $stmt->bindParam(':fname', $fname);
    $stmt->bindParam(':lname', $lname);
    $stmt->execute();

    $fname .= 'O';
    $lname .= 'A';
}


$time_end = microtime(true);
$time = $time_end - $time_start;

echo "Completed in ". $time ." seconds <hr>";

$fname2 = 'J';
$lname2 = 'M';

$time_start2 = microtime(true);
$qry = 'INSERT INTO table (FirstName, LastName) VALUES ';
$qry .= "(?,?), ";
$qry .= "(?,?), ";
$qry .= "(?,?), ";
$qry .= "(?,?), ";
$qry .= "(?,?), ";
$qry .= "(?,?), ";
$qry .= "(?,?), ";
$qry .= "(?,?), ";
$qry .= "(?,?), ";
$qry .= "(?,?)";

$stmt2 = $db->prepare($qry);
$values = array();

for($j = 1; $j<=10; $j++) {
    $values2 = array($fname2, $lname2);
    $values = array_merge($values,$values2);

    $fname2 .= 'O';
    $lname2 .= 'A';
}

$stmt2->execute($values);

$time_end2 = microtime(true);
$time2 = $time_end2 - $time_start2;

echo "Completed in ". $time2 ." seconds <hr>";
?>







虽然整个查询本身需要毫秒或更短的时间，但后者（单个字符串）查询的速度始终是原来的8倍或更多。如果这是为了在更多的列上反映数千行的导入，差异可能会很大。
Herbert Balagtas接受的答案在$data数组较小时效果良好。如果$data数组较大，数组合并功能会变得非常慢。我的测试文件创建$data数组需要28列，大约80000行。最终的脚本需要41s才能完成

使用array\u push（）创建$insert\u值而不是array\u merge（），可使执行时间0.41s，速度提高100倍

有问题的数组\u merge（）：

要消除对数组_merge（）的需要，可以构建以下两个数组：


//Note that these fields are empty, but the field count should match the fields in $datafields.
$data[] = array('','','','',... n ); 

//getting rid of array_merge()
array_push($insert_values, $value1, $value2, $value3 ... n ); 


然后可以按如下方式使用这些阵列：


function placeholders($text, $count=0, $separator=","){
    $result = array();
    if($count > 0){
        for($x=0; $x<$count; $x++){
            $result[] = $text;
        }
    }

    return implode($separator, $result);
}

$pdo->beginTransaction();

foreach($data as $d){
 $question_marks[] = '('  . placeholders('?', sizeof($d)) . ')';
}

$sql = "INSERT INTO table (" . implode(",", array_keys($datafield) ) . ") VALUES " . implode(',', $question_marks);

$stmt = $pdo->prepare($sql);
$stmt->execute($insert_values);
$pdo->commit();



函数占位符（$text，$count=0，$separator=“，”）{
$result=array（）；
如果（$count>0）{
对于（$x=0；$xbeginTransaction（）；
foreach（$d数据）{
$question_marks[]='（'.占位符（'？'），sizeof（$d））'；
}
$sql=“INSERT INTO table（“.introde（“，”，array_keys（$datafield）））”值“.introde（“，”，$question_marks）；
$stmt=$pdo->prepare（$sql）；
$stmt->execute（$insert_值）；
$pdo->commit（）；

这是我编写的一个类，使用清除选项执行多次插入：


<?php

/**
 * $pdo->beginTransaction();
 * $pmi = new PDOMultiLineInserter($pdo, "foo", array("a","b","c","e"), 10);
 * $pmi->insertRow($data);
 * ....
 * $pmi->insertRow($data);
 * $pmi->purgeRemainingInserts();
 * $pdo->commit();
 *
 */
class PDOMultiLineInserter {
    private $_purgeAtCount;
    private $_bigInsertQuery, $_singleInsertQuery;
    private $_currentlyInsertingRows  = array();
    private $_currentlyInsertingCount = 0;
    private $_numberOfFields;
    private $_error;
    private $_insertCount = 0;

    function __construct(\PDO $pdo, $tableName, $fieldsAsArray, $bigInsertCount = 100) {
        $this->_numberOfFields = count($fieldsAsArray);
        $insertIntoPortion = "INSERT INTO `$tableName` (`".implode("`,`", $fieldsAsArray)."`) VALUES";
        $questionMarks  = " (?".str_repeat(",?", $this->_numberOfFields - 1).")";

        $this->_purgeAtCount = $bigInsertCount;
        $this->_bigInsertQuery    = $pdo->prepare($insertIntoPortion.$questionMarks.str_repeat(", ".$questionMarks, $bigInsertCount - 1));
        $this->_singleInsertQuery = $pdo->prepare($insertIntoPortion.$questionMarks);
    }

    function insertRow($rowData) {
        // @todo Compare speed
        // $this->_currentlyInsertingRows = array_merge($this->_currentlyInsertingRows, $rowData);
        foreach($rowData as $v) array_push($this->_currentlyInsertingRows, $v);
        //
        if (++$this->_currentlyInsertingCount == $this->_purgeAtCount) {
            if ($this->_bigInsertQuery->execute($this->_currentlyInsertingRows) === FALSE) {
                $this->_error = "Failed to perform a multi-insert (after {$this->_insertCount} inserts), the following errors occurred:".implode('<br/>', $this->_bigInsertQuery->errorInfo());
                return false;
            }
            $this->_insertCount++;

            $this->_currentlyInsertingCount = 0;
            $this->_currentlyInsertingRows = array();
        }
        return true;
    }

    function purgeRemainingInserts() {
        while ($this->_currentlyInsertingCount > 0) {
            $singleInsertData = array();
            // @todo Compare speed - http://www.evardsson.com/blog/2010/02/05/comparing-php-array_shift-to-array_pop/
            // for ($i = 0; $i < $this->_numberOfFields; $i++) $singleInsertData[] = array_pop($this->_currentlyInsertingRows); array_reverse($singleInsertData);
            for ($i = 0; $i < $this->_numberOfFields; $i++) array_unshift($singleInsertData, array_pop($this->_currentlyInsertingRows));

            if ($this->_singleInsertQuery->execute($singleInsertData) === FALSE) {
                $this->_error = "Failed to perform a small-insert (whilst purging the remaining rows; the following errors occurred:".implode('<br/>', $this->_singleInsertQuery->errorInfo());
                return false;
            }
            $this->_currentlyInsertingCount--;
        }
    }

    public function getError() {
        return $this->_error;
    }
}



您可以使用此功能在一个查询中插入多行：


function insertMultiple($query,$rows) {
    if (count($rows)>0) {
        $args = array_fill(0, count($rows[0]), '?');

        $params = array();
        foreach($rows as $row)
        {
            $values[] = "(".implode(',', $args).")";
            foreach($row as $value)
            {
                $params[] = $value;
            }
        }

        $query = $query." VALUES ".implode(',', $values);
        $stmt = $PDO->prepare($query);
        $stmt->execute($params);
    }
}


$row是一个值数组数组。
在您的情况下，您可以调用func

function placeholders($text, $count=0, $separator=","){
    $result = array();
    if($count > 0){
        for($x=0; $x<$count; $x++){
            $result[] = $text;
        }
    }

    return implode($separator, $result);
}

$pdo->beginTransaction();

foreach($data as $d){
 $question_marks[] = '('  . placeholders('?', sizeof($d)) . ')';
}

$sql = "INSERT INTO table (" . implode(",", array_keys($datafield) ) . ") VALUES " . implode(',', $question_marks);

$stmt = $pdo->prepare($sql);
$stmt->execute($insert_values);
$pdo->commit();



<?php

/**
 * $pdo->beginTransaction();
 * $pmi = new PDOMultiLineInserter($pdo, "foo", array("a","b","c","e"), 10);
 * $pmi->insertRow($data);
 * ....
 * $pmi->insertRow($data);
 * $pmi->purgeRemainingInserts();
 * $pdo->commit();
 *
 */
class PDOMultiLineInserter {
    private $_purgeAtCount;
    private $_bigInsertQuery, $_singleInsertQuery;
    private $_currentlyInsertingRows  = array();
    private $_currentlyInsertingCount = 0;
    private $_numberOfFields;
    private $_error;
    private $_insertCount = 0;

    function __construct(\PDO $pdo, $tableName, $fieldsAsArray, $bigInsertCount = 100) {
        $this->_numberOfFields = count($fieldsAsArray);
        $insertIntoPortion = "INSERT INTO `$tableName` (`".implode("`,`", $fieldsAsArray)."`) VALUES";
        $questionMarks  = " (?".str_repeat(",?", $this->_numberOfFields - 1).")";

        $this->_purgeAtCount = $bigInsertCount;
        $this->_bigInsertQuery    = $pdo->prepare($insertIntoPortion.$questionMarks.str_repeat(", ".$questionMarks, $bigInsertCount - 1));
        $this->_singleInsertQuery = $pdo->prepare($insertIntoPortion.$questionMarks);
    }

    function insertRow($rowData) {
        // @todo Compare speed
        // $this->_currentlyInsertingRows = array_merge($this->_currentlyInsertingRows, $rowData);
        foreach($rowData as $v) array_push($this->_currentlyInsertingRows, $v);
        //
        if (++$this->_currentlyInsertingCount == $this->_purgeAtCount) {
            if ($this->_bigInsertQuery->execute($this->_currentlyInsertingRows) === FALSE) {
                $this->_error = "Failed to perform a multi-insert (after {$this->_insertCount} inserts), the following errors occurred:".implode('<br/>', $this->_bigInsertQuery->errorInfo());
                return false;
            }
            $this->_insertCount++;

            $this->_currentlyInsertingCount = 0;
            $this->_currentlyInsertingRows = array();
        }
        return true;
    }

    function purgeRemainingInserts() {
        while ($this->_currentlyInsertingCount > 0) {
            $singleInsertData = array();
            // @todo Compare speed - http://www.evardsson.com/blog/2010/02/05/comparing-php-array_shift-to-array_pop/
            // for ($i = 0; $i < $this->_numberOfFields; $i++) $singleInsertData[] = array_pop($this->_currentlyInsertingRows); array_reverse($singleInsertData);
            for ($i = 0; $i < $this->_numberOfFields; $i++) array_unshift($singleInsertData, array_pop($this->_currentlyInsertingRows));

            if ($this->_singleInsertQuery->execute($singleInsertData) === FALSE) {
                $this->_error = "Failed to perform a small-insert (whilst purging the remaining rows; the following errors occurred:".implode('<br/>', $this->_singleInsertQuery->errorInfo());
                return false;
            }
            $this->_currentlyInsertingCount--;
        }
    }

    public function getError() {
        return $this->_error;
    }
}



function insertMultiple($query,$rows) {
    if (count($rows)>0) {
        $args = array_fill(0, count($rows[0]), '?');

        $params = array();
        foreach($rows as $row)
        {
            $values[] = "(".implode(',', $args).")";
            foreach($row as $value)
            {
                $params[] = $value;
            }
        }

        $query = $query." VALUES ".implode(',', $values);
        $stmt = $PDO->prepare($query);
        $stmt->execute($params);
    }
}



insertMultiple("INSERT INTO tbl (`key1`,`key2`)",array(array('r1v1','r1v2'),array('r2v1','r2v2')));



$sql = 'INSERT INTO table(pk_pk1,pk_pk2,date,pk_3) VALUES '; 
$qPart = array_fill(0, count($array), "(?, ?,UTC_TIMESTAMP(),?)");
$sql .= implode(",", $qPart);
$stmt =    DB::prepare('base', $sql);
$i = 1;
foreach ($array as $value) { 
  $stmt->bindValue($i++, $value);
  $stmt->bindValue($i++, $pk_pk1);
  $stmt->bindValue($i++, $pk_pk2); 
  $stmt->bindValue($i++, $pk_pk3); 
} 
$stmt->execute();



$q = "insert into t2(id,name) values (?,?), ... on duplicate key update name=name"; 
$bind_values = [ [[1,'str1'],[2,'str2']] ];
$pdo->perform($q, $bind_values);



// obtain column template
$stmt = $db->prepare('SHOW COLUMNS FROM towns');
$stmt->execute();
$columns = array_fill_keys(array_values($stmt->fetchAll(PDO::FETCH_COLUMN)), null);
// multiple INSERT
$postcode = '01000';// smallest german postcode
while ($postcode <= 99999) {// highest german postcode
    $values = array();
    while ($postcode <= 99999) {
        // reset row
        $row = $columns;
        // now fill our row with data
        $row['postcode'] = sprintf('%05d', $postcode);
        // build INSERT array
        foreach ($row as $value) {
            $values[] = $value;
        }
        $postcode++;
        // avoid memory kill
        if (!($postcode % 10000)) {
            break;
        }
    }
    // build query
    $count_columns = count($columns);
    $placeholder = ',(' . substr(str_repeat(',?', $count_columns), 1) . ')';//,(?,?,?)
    $placeholder_group = substr(str_repeat($placeholder, count($values) / $count_columns), 1);//(?,?,?),(?,?,?)...
    $into_columns = implode(',', array_keys($columns));//col1,col2,col3
    // this part is optional:
    $on_duplicate = array();
    foreach ($columns as $column => $row) {
        $on_duplicate[] = $column;
        $on_duplicate[] = $column;
    }
    $on_duplicate = ' ON DUPLICATE KEY UPDATE' . vsprintf(substr(str_repeat(', %s = VALUES(%s)', $count_columns), 1), $on_duplicate);
    // execute query
    $stmt = $db->prepare('INSERT INTO towns (' . $into_columns . ') VALUES' . $placeholder_group . $on_duplicate);//INSERT INTO towns (col1,col2,col3) VALUES(?,?,?),(?,?,?)... {ON DUPLICATE...}
    $stmt->execute($values);
}



    $row['postcode'] = sprintf('%05d', $postcode);



$cols = 'name', 'middleName', 'eMail';
$table = 'people';



foreach ( $people as $person ) {
if(! $rowVals ) {
$rows = '(' . "'$name'" . ',' . "'$middleName'" . ',' .           "'$eMail'" . ')';
} else { $rowVals  = '(' . "'$name'" . ',' . "'$middleName'" . ',' . "'$eMail'" . ')';
}



$stmt = $db->prepare ( "INSERT INTO $table $cols VALUES $rowVals" );
$stmt->execute ();



private function import(PDO $connection, $table, array $records)
{
    $fields = array_keys($records[0]);
    $placeHolders = substr(str_repeat(',?', count($fields)), 1);
    $values = [];
    foreach ($records as $record) {
        array_push($values, ...array_values($record));
    }

    $query = 'INSERT INTO ' . $table . ' (';
    $query .= implode(',', $fields);
    $query .= ') VALUES (';
    $query .= implode('),(', array_fill(0, count($records), $placeHolders));
    $query .= ')';

    $statement = $connection->prepare($query);
    $statement->execute($values);
}



public function InsertRange($tableName, $rows)
{
    // Get column list
    $columnList = array_keys($rows[0]);
    $numColumns = count($columnList);
    $columnListString = implode(",", $columnList);

    // Generate pdo param placeholders
    $placeHolders = array();

    foreach($rows as $row)
    {
        $temp = array();

        for($i = 0; $i < count($row); $i++)
            $temp[] = "?";

        $placeHolders[] = "(" . implode(",", $temp) . ")";
    }

    $placeHolders = implode(",", $placeHolders);

    // Construct the query
    $sql = "insert into $tableName ($columnListString) values $placeHolders";
    $stmt = $this->pdo->prepare($sql);

    $j = 1;
    foreach($rows as $row)
    {
        for($i = 0; $i < $numColumns; $i++)
        {
            $stmt->bindParam($j, $row[$columnList[$i]]);
            $j++;
        }
    }

    $stmt->execute();
}



    $values = array();
    foreach($workouts_id as $value){
      $_value = "(".$value.",".$plan_id.")";
      array_push($values,$_value);
    }
    $values_ = implode(",",$values);

    $sql = "INSERT INTO plan_days(id,name) VALUES" . $values_."";
    $stmt = $this->conn->prepare($sql);
    $stmt->execute();



$arr1 = Array("Germany", "Berlin");
$arr2 = Array("France", "France");

insertMultipleData("countries", Array($arr1, $arr2));


// Inserting multiple data to the Database.
public function insertMultipleData($table, $multi_params){
    try{
        $db = $this->connect();

        $beforeParams = "";
        $paramsStr = "";
        $valuesStr = "";

        for ($i=0; $i < count($multi_params); $i++) { 

            foreach ($multi_params[$i] as $j => $value) {                   

                if ($i == 0) {
                    $beforeParams .=  " " . $j . ",";
                }

                $paramsStr .= " :"  . $j . "_" . $i .",";                                       
            }

            $paramsStr = substr_replace($paramsStr, "", -1);
            $valuesStr .=  "(" . $paramsStr . "),"; 
            $paramsStr = "";
        }


        $beforeParams = substr_replace($beforeParams, "", -1);
        $valuesStr = substr_replace($valuesStr, "", -1);


        $sql = "INSERT INTO " . $table . " (" . $beforeParams . ") VALUES " . $valuesStr . ";";

        $stmt = $db->prepare($sql);


        for ($i=0; $i < count($multi_params); $i++) { 
            foreach ($multi_params[$i] as $j => &$value) {
                $stmt->bindParam(":" . $j . "_" . $i, $value);                                      
            }
        }

        $this->close($db);
        $stmt->execute();                       

        return true;

    }catch(PDOException $e){            
        return false;
    }

    return false;
}

// Making connection to the Database 
    public function connect(){
        $host = Constants::DB_HOST;
        $dbname = Constants::DB_NAME;
        $user = Constants::DB_USER;
        $pass = Constants::DB_PASS;

        $mysql_connect_str = 'mysql:host='. $host . ';dbname=' .$dbname;

        $dbConnection = new PDO($mysql_connect_str, $user, $pass);
        $dbConnection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

        return $dbConnection;
    }

    // Closing the connection
    public function close($db){
        $db = null;
    }



<?php

class SpeedTestClass
{
    private $data;

    private $pdo;

    public function __construct()
    {
        $this->data = [];
        $this->pdo = new \PDO('mysql:dbname=test_data', 'admin', 'admin');
        if (!$this->pdo) {
            die('Failed to connect to database');
        }
    }

    public function createData()
    {
        $prefix = 'test';
        $postfix = 'unicourt.com';
        $salutations = ['Mr.', 'Ms.', 'Dr.', 'Mrs.'];

        $csv[] = ['Salutation', 'First Name', 'Last Name', 'Email Address'];
        for ($i = 0; $i < 100000; ++$i) {
            $csv[] = [
                $salutations[$i % \count($salutations)],
                $prefix.$i,
                $prefix.$i,
                $prefix.$i.'@'.$postfix,
            ];
        }

        $this->data = $csv;
    }

    public function truncateTable()
    {
        $this->pdo->query('TRUNCATE TABLE `name`');
    }

    public function transactionSpeed()
    {
        $timer1 = microtime(true);
        $this->pdo->beginTransaction();
        $sql = 'INSERT INTO `name` (`first_name`, `last_name`) VALUES (:first_name, :last_name)';
        $sth = $this->pdo->prepare($sql);

        foreach (\array_slice($this->data, 1) as $values) {
            $sth->execute([
                ':first_name' => $values[1],
                ':last_name' => $values[2],
            ]);
        }

        // $timer2 = microtime(true);
        // echo 'Prepare Time: '.($timer2 - $timer1).PHP_EOL;
        // $timer3 = microtime(true);

        if (!$this->pdo->commit()) {
            echo "Commit failed\n";
        }
        $timer4 = microtime(true);
        // echo 'Commit Time: '.($timer4 - $timer3).PHP_EOL;

        return $timer4 - $timer1;
    }

    public function autoCommitSpeed()
    {
        $timer1 = microtime(true);
        $sql = 'INSERT INTO `name` (`first_name`, `last_name`) VALUES (:first_name, :last_name)';
        $sth = $this->pdo->prepare($sql);
        foreach (\array_slice($this->data, 1) as $values) {
            $sth->execute([
                ':first_name' => $values[1],
                ':last_name' => $values[2],
            ]);
        }
        $timer2 = microtime(true);

        return $timer2 - $timer1;
    }

    public function noBindAutoCommitSpeed()
    {
        $timer1 = microtime(true);

        foreach (\array_slice($this->data, 1) as $values) {
            $sth = $this->pdo->prepare("INSERT INTO `name` (`first_name`, `last_name`) VALUES ('{$values[1]}', '{$values[2]}')");
            $sth->execute();
        }
        $timer2 = microtime(true);

        return $timer2 - $timer1;
    }

    public function singleTransactionInsert()
    {
        $timer1 = microtime(true);
        foreach (\array_slice($this->data, 1) as $values) {
            $arr[] = "('{$values[1]}', '{$values[2]}')";
        }
        $sth = $this->pdo->prepare('INSERT INTO `name` (`first_name`, `last_name`) VALUES '.implode(', ', $arr));
        $sth->execute();
        $timer2 = microtime(true);

        return $timer2 - $timer1;
    }

    public function singleTransactionInsertWithPlaceholders()
    {
        $placeholders = [];
        $timer1 = microtime(true);
        $sql = 'INSERT INTO `name` (`first_name`, `last_name`) VALUES ';
        foreach (\array_slice($this->data, 1) as $values) {
            $placeholders[] = '(?, ?)';
            $arr[] = $values[1];
            $arr[] = $values[2];
        }
        $sql .= implode(', ', $placeholders);
        $sth = $this->pdo->prepare($sql);
        $sth->execute($arr);
        $timer2 = microtime(true);

        return $timer2 - $timer1;
    }

    public function singleTransactionInsertWithRollback()
    {
        $placeholders = [];
        $timer1 = microtime(true);
        $sql = 'INSERT INTO `name` (`first_name`, `last_name`) VALUES ';
        foreach (\array_slice($this->data, 1) as $values) {
            $placeholders[] = '(?, ?)';
            $arr[] = $values[1];
            $arr[] = $values[2];
        }
        $sql .= implode(', ', $placeholders);
        $this->pdo->beginTransaction();
        $sth = $this->pdo->prepare($sql);
        $sth->execute($arr);
        $this->pdo->commit();
        $timer2 = microtime(true);

        return $timer2 - $timer1;
    }
}

$s = new SpeedTestClass();
$s->createData();
$s->truncateTable();
echo "Time Spent for singleTransactionInsertWithRollback: {$s->singleTransactionInsertWithRollback()}".PHP_EOL;
$s->truncateTable();
echo "Time Spent for single Transaction Insert: {$s->singleTransactionInsert()}".PHP_EOL;
$s->truncateTable();
echo "Time Spent for single Transaction Insert With Placeholders: {$s->singleTransactionInsertWithPlaceholders()}".PHP_EOL;
$s->truncateTable();
echo "Time Spent for transaction: {$s->transactionSpeed()}".PHP_EOL;
$s->truncateTable();
echo "Time Spent for AutoCommit: {$s->noBindAutoCommitSpeed()}".PHP_EOL;
$s->truncateTable();
echo "Time Spent for autocommit with bind: {$s->autoCommitSpeed()}".PHP_EOL;
$s->truncateTable();



$ php data.php
Time Spent for singleTransactionInsertWithRollback: 0.75147604942322
Time Spent for single Transaction Insert: 0.67445182800293
Time Spent for single Transaction Insert With Placeholders: 0.71131205558777
Time Spent for transaction: 8.0056409835815
Time Spent for AutoCommit: 35.4979159832
Time Spent for autocommit with bind: 33.303519010544



$do = $db->prepare("INSERT INTO table (id, name) VALUES ".implode(',', array_fill(0, count($aData), '(?,?)')));

foreach($aData as $iIndex => $aValues){
 $iRealIndex = 2 * $iIndex + 1;
 $do->bindValue($iRealIndex, $aValues['id'], PDO::PARAM_INT);
 $iRealIndex = $iRealIndex + 1;
 $do->bindValue($iRealIndex, $aValues['name'], PDO::PARAM_STR);
}

$do->execute();



        if(count($types_of_values)>0){
         $uid = 1;
         $x = 0;
         $sql = "";
         $values = array();
          foreach($types_of_values as $k=>$v){
            $sql .= "(:id_$k,:kind_of_val_$k), ";
            $values[":id_$k"] = $uid;
            $values[":kind_of_val_$k"] = $v;
          }
         $sql = substr($sql,0,-2);
         $query = "INSERT INTO table (id,value_type) VALUES $sql";
         $res = $this->db->prepare($query);
         $res->execute($values);            
        }