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);}?>