使用 MySQLi 向 MySQL 插入、增加数据

重点是：红色部分的格式

$sql = "INSERT INTO data_type (title, admin_name,flid) VALUES
('".$title."','".$admin_name."',1)";

<?php
if($title){
$admin_name=$_SESSION['username'];
//$time=date();
$sql = "INSERT INTO data_type (title, admin_name,flid) VALUES ('".$title."','".$admin_name."',1)";

if (mysqli_query($conn, $sql)) {
echo "新记录插入成功";
} else {
echo "Error: " . $sql . "<br>" . mysqli_error($conn);
}

mysqli_close($conn);
}

?>