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我想插入數據到數據庫中。但是當我點擊保存按鈕比數據沒有去在database.i不明白我在哪裏做錯了。這是我的PHP代碼:數據沒有輸入數據庫使用php
<?php
$host = "localhost";
$user = "root";
$password ="";
$database = "crud";
$conn = new mysqli($host, $user, $password);
mysql_select_db($database);
if(isset($_POST['btn-save']))
{
$first_name = $_POST['first_name'];
$last_name = $_POST['last_name'];
$city_name = $_POST['city_name'];
$sql_query ="INSERT INTO users(first_name,last_name,user_city) VALUES('$first_name','$last_name','$city_name')";
mysql_query($sql_query);
}
?>
的可能的複製[我可以混用MySQL中的API?](http://stackoverflow.com/questions/17498216/can-i-mix-mysql-apis-in-php) –
你在混合mysqli和mysql – RamRaider