php往mysql中批量插入数据实例教程

CREATE TABLE IF NOT EXISTS `user_info` (
 `id` int(11) NOT NULL AUTO_INCREMENT COMMENT \'自增主键\',
 `name` varchar(255) NOT NULL default \'\' COMMENT \'姓名\',
 `age` int(11) NOT NULL default \'0\' COMMENT \'年龄\',
 PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT=\'用户信息表\';

$arr = [	
	[
		\'name\' => \'testname1\',
		\'age\' => 18,
	],
	[
		\'name\' => \'testname2\',
		\'age\' => 19,
	],
	[
		\'name\' => \'testname3\',
		\'age\' => 18,
	],
];

$servername = \"localhost\";
$port = 3306;
$username = \"username\";
$password = \"password\";
$dbname = \"mytestdb\";

// 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);
} 

$costBegin = microtime(true);

foreach($arr as $item) {
 	$sql = sprintf(\"INSERT INTO user_info (name, age) VALUES ( \'%s\', %d);\", $item[\'name\'], (int)$item[\'age\']);	 
	if ($conn->query($sql) === TRUE) {
	 echo \"insert success\";
	} else {
	 echo \"Error: \" . $sql . \"<br>\" . $conn->error;
	}
}

$costEnd = microtime(true);
$cost = round($costEnd - $costBegin, 3);
var_dump($cost);

$conn->close();

$arr = [	
	[
		\'name\' => \'testname1\',
		\'age\' => 18,
	],
	[
		\'name\' => \'testname2\',
		\'age\' => 19,
	],
	[
		\'name\' => \'testname3\',
		\'age\' => 18,
	],
	// 此处省略
	……
	……
];

$servername = \"localhost\";
$port = 3306;
$username = \"username\";
$password = \"password\";
$dbname = \"mytestdb\";

// 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);
} 

$costBegin = microtime(true);

if (!empty($arr)) {
	$sql = sprintf(\"INSERT INTO user_info (name, age) VALUES \");

	foreach($arr as $item) {
  $itemStr = \'( \';
  $itemStr .= sprintf(\"\'%s\', %d\", $item[\'name\'], (int)$item[\'age\']);
  $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) {
	} else {
	 echo \"Error: \" . $sql . \"<br>\" . $conn->error;
	}
}

$costEnd = microtime(true);
$cost = round($costEnd - $costBegin, 3);
var_dump($cost);

$conn->close();