<?php


header("Content-Type:text/html;charset=utf-8");
date_default_timezone_set("PRC");
$servername = "localhost";
$port = 3306;
$username = "root";
$password = "root";
$dbname = "charu";

// 创建连接
$conn = new mysqli($servername, $username, $password, $dbname, $port);

// 检测连接
if ($conn->connect_error) {
 die("connect failed: " . $conn->connect_error);
} 

// 第一种，一条一条插入，结果要2分多钟
$costBegin = time();
echo date('Y-m-d H:s:i',$costBegin)."<br>";
for($i=0;$i<1000000;$i++){
    $sql = sprintf("INSERT INTO charu (name, age) VALUES ( '%s', %d);", '测试', 10);
    $conn->query($sql);
}

$costEnd = time();
echo date('Y-m-d H:s:i',$costEnd)."<br>";
$cost = $costEnd - $costBegin;
echo date('Y-m-d H:s:i',$cost)."<br>";

$conn->close();

INSERT INTO charu (name, age) VALUES ('name1', 18), ('name2', 19);

<?php


header("Content-Type:text/html;charset=utf-8");
date_default_timezone_set("PRC");
$servername = "localhost";
$port = 3306;
$username = "root";
$password = "root";
$dbname = "charu";

// 创建连接
$conn = new mysqli($servername, $username, $password, $dbname, $port);

// 检测连接
if ($conn->connect_error) {
 die("connect failed: " . $conn->connect_error);
} 

// 第二种，把所有要插入的数据生成为一条sql语句，所以执行的时间会快很多，测试时间是5秒多
$costBegin = time();
echo date('Y-m-d H:s:i',$costBegin)."<br>";
$sql = sprintf("INSERT INTO charu (name, age) VALUES ");
for($i=0;$i<1000000;$i++){
      $itemStr = '( ';
      $itemStr .= sprintf("'%s', %d", '测试', 10);
      $itemStr .= '),';
      $sql .= $itemStr;
}
// 去除最后一个逗号，并且加上结束分号
$sql = rtrim($sql, ',');
$sql .= ';';
if ($conn->query($sql) === TRUE) {
    echo "新记录插入成功". "<br>";
} else {
    echo "Error: " . $sql . "<br>" . $conn->error;
}

$costEnd = time();
echo date('Y-m-d H:s:i',$costEnd)."<br>";
$cost = $costEnd - $costBegin;
echo date('Y-m-d H:s:i',$cost)."<br>";

$conn->close();