$sql_query - 是带有 SQL 指令的字符串。此方法向 MySQL 连接发送查询或命令,将返回结果对象,如果成功则返回 TRUE。失败时为 FALSE。
以下示例创建一个名为“tests”的数据库:
<?php
// connect to the MySQL server
$conn = new mysqli('localhost', 'root', 'pass');
// check connection
if (mysqli_connect_errno()) {
exit('Connect failed: '. mysqli_connect_error());
}
// sql query with CREATE DATABASE
$sql = "CREATE DATABASE `tests` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci";
// Performs the $sql query on the server to create the database
if ($conn->query($sql) === TRUE) {
echo 'Database "tests" successfully created';
}
else {
echo 'Error: '. $conn->error;
}
$conn->close();
?>