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test.php

<?php
require_once('Database.php');

$obj = new Database();
$table = "test";

$rows = array(
    array(
    'name' => 'balasubramani',
    'status' => 1
    ),
    array(
    'name' => 'balakumar',
    'status' => 1
    ),
    array(
    'name' => 'mani',
    'status' => 1
    )
);

var_dump($obj->insertMultiple($table,$rows));
?>

Database.php

<?php
class Database 
{

    /* Initializing Database Information */

    var $host = 'localhost';
    var $user = 'root';
    var $pass = '';
    var $database = "database";
    var $dbh;

    /* Connecting Datbase */

    public function __construct(){
        try {
            $this->dbh = new PDO('mysql:host='.$this->host.';dbname='.$this->database.'', $this->user, $this->pass);
            //print "Connected Successfully";
        } 
        catch (PDOException $e) {
            print "Error!: " . $e->getMessage() . "<br/>";
            die();
        }
    }
/* Insert Multiple Rows in a table */

    public function insertMultiple($table,$rows){

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

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

        $stmt = $this->dbh->prepare ($sql);
        try {
            $stmt->execute($insert_values);
        } catch (PDOException $e){
            echo $e->getMessage();
        }
        return $this->dbh->commit();
    }

    /*  placeholders for prepared statements like (?,?,?)  */

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

        return implode($separator, $result);
    }

}
?>