PHP mysql 批量插入数据

php向mysql插入百万数据只需不到一分钟时间，之间还可以优化

<?php
set_time_limit(0);
$dsn = 'mysql:dbname=test;host=localhost;port=3306';
$username = 'root';
$password = '123456';
try {
    $pdo = new PDO($dsn, $username, $password); // also allows an extra parameter of configuration
} catch(PDOException $e) {
    die('Could not connect to the database:<br/>' . $e);
}

$pdo->beginTransaction();
try{
    $c = 0;
    $values='';
    for($i=0;$i<100000000;$i++){
        $str="QWERTYUIOPASDFGHJKLZXCVBNM1234567890qwertyuiopasdfghjklzxcvbnm";
        str_shuffle($str);
        $name=substr(str_shuffle($str),26,6);
        //$content = substr(str_shuffle($str),1,60);
        $sex = ['男','女'];
        $age = [10,20,30,35,32,12,16,18,19,50,56,59,60,68,97,99,33,75,95,28,22,26,28,30,25];
        $prov = ['四川','云南','北京','上海','广东','湖南','浙江'];
        $city = ['成都','昆明','北京','上海','广州','湖南','浙江','深圳','杭州','合肥','天津','绵阳'];
        $prov_name = $prov[array_rand($prov)];
        $city_name = $prov[array_rand($prov)];
        $sex_name = $sex[array_rand($sex)];
        $age_name = $age[array_rand($age)];
//        $res = $pdo->prepare("insert into test (id,title,age,sex,prov,city,content) values (:id,:title,:age,:sex,:prov,:city,:content)");
//        $res->bindValue('id',UUID());
//        $res->bindValue('title',$name);
//        $res->bindValue('age',$age[array_rand($age)]);
//        $res->bindValue('sex',"".$sex[array_rand($sex)]."");
//        $res->bindValue('prov',"".$prov[array_rand($prov)]."");
//        $res->bindValue('city',"".$city[array_rand($city)]."");
//        $res->bindValue('content',UUID().UUID());
        $values .= ',("'.UUID().'","'.$name.'",'.$age_name.',"'.$sex_name.'","'.$prov_name.'","'.$city_name.'","'.$name.'")';
        $values = ltrim($values,',');

        if ($c%10000==0){
            $pdo->exec('insert into test (uuid,title,age,sex,prov,city,content) value '.$values);
            $values='';
        }
        $c++;
       //$res->execute();
        if ($i%200000==0){
            $pdo->commit();
            $pdo->beginTransaction();
        }
    }
    $pdo->commit();
}catch (Exception $e){
    $pdo->rollBack();
    echo $e->getMessage();
}

function UUID(){
    $uuid = '';
    if (function_exists('uuid_create') === true){
        $uuid = uuid_create(1);
    }else{
        $data = openssl_random_pseudo_bytes(16);
        $data[6] = chr(ord($data[6]) & 0x0f | 0x40);
        $data[8] = chr(ord($data[8]) & 0x3f | 0x80);
        $uuid = vsprintf('%s%s-%s-%s-%s-%s%s%s', str_split(bin2hex($data), 4));
    }
    return $uuid;
}