php查询多条数据的方法：首先创建一个PHP示例文件；然后创建PHP MySQL连接；最后通过“SELECT id, firstname, lastname FROM MyGuests”语句实现多条数据的查询即可。
本文操作环境：windows7系统、PHP7.1版，DELL G3电脑
PHP+MySQL 原生SQL查询多条数据 (MySQLi - 面向对象）
<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";
// 创建连接
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("连接失败: " . $conn->connect_error);
}
$sql = "SELECT id, firstname, lastname FROM MyGuests";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// 输出数据
while($row = $result->fetch_assoc()) {
echo "id: " . $row["id"]. " - Name: " . $row["firstname"]. " " . $row["lastname"]. "<br>";
}
} else {
echo "0 结果";
}
$conn->close();
?>以上是php怎么查询多条数据的详细内容。更多信息请关注PHP中文网其他相关文章！
