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我正在寫一個簡單的PHP程序來插入學生信息到mysql數據庫並用用戶ID迴應。這個腳本有時候效果不錯。但有時它不起作用。這種行爲有什麼可能的原因。如果我的程序有任何錯誤,請提出修正建議。以下是我的學生註冊腳本和mysql數據庫功能。我不擅長PHP,請提供更正如果有更多PHP腳本有時會插入數據到數據庫中,有時候不會
<?php
$username = $_POST['name'];
$clgName = $_POST['clg_name'];
$branch = $_POST['branch'];
$sem = $_POST['sem'];
$mobile = $_POST['mobile'];
$email = $_POST['email'];
$profile_pic_color = $_POST['profile_pic_color'];
$deviceId = $_POST['device_id'];
include "DatabaseHandler/DBFunctions.php";
$db = new DBFunctions();
$query = "INSERT INTO user_details(user_name, user_clgName, user_branch, user_sem, user_mobile, user_email, profile_color, device_id) values('$username', '$clgName', '$branch','$sem', '$mobile', '$email', '$profile_pic_color', '$deviceId')";
list($result, $mysqli) = $db->select($query);
$query = "SELECT MAX(user_id) FROM user_details";
if($mysqli->affected_rows > 0){
list($result, $mysqli) = $db->select($query);
$arr = array();
if($result){
$row = $result->fetch_array();
$arr[] = $row;
echo json_encode($arr);
}
}
?>
這是我的數據庫管理器PHP SCRIPT。
<?php
class DBFunctions{
public function connect(){
include "DBConfig.php";
$mysqli = new mysqli($domain, $username, $password, $database);
return $mysqli;
}
public function query($query){
// Connect to the database
$mysqli = $this -> connect();
// Query the database
$result = $mysqli -> query($query);
return array($result, $mysqli);
}
public function select($query){
$mysqli = $this -> connect();
$result = $mysqli -> query($query);
if($result === false) {
return false;
}
return array($result, $mysqli);
}
}
?>
任何約束?獨特的列? –
只是主鍵與auto_increment –
什麼'但有時它不工作.'是什麼意思?它說什麼,什麼時候不工作?哪個是錯誤? –