Question

这是我到目前为止创建的函数

class MySQLiDatabase{

/**
 * Database credentials
 */
private $db_host = ''; // localhost
private $db_name = ''; // database name
private $db_user = ''; // database uer
private $db_pass = ''; // database password

/**
 * create conneaction
 * @string
 */
private $connection;

/**
 * start connection as soon as this file gets load
 */
public function __construct(){
    $this->connect();
}

/**
 * connect to the database
 */
public function connect(){
    $this->connection = mysqli_connect($this->db_host,$this->db_user,$this->db_pass);
    if(!$this->connection){
        die ("Database connection failed: " . mysql_error());
    }else{
        $select_db = mysqli_select_db($this->connection,$this->db_name);
        if(!$select_db){
            die("Database selection failed: " . mysql_error());
        }
    }
}

/**
 * close mysql connection
 */
public function close_connection(){
    if(isset($this->connection)){
        mysqli_close($this->connection);
        unset($this->connection);
    }
}

/**
 * run database query
 */
public function query($sql){
    $result = mysqli_query($this->connection,$sql);
    $this->confirm_query($result);
    return $result;
} // end query($sql)

/**
 * confirm mysql query 
 * @param string
 */
public function confirm_query($result){
    if(!$result){
        die ("Database query failed: " . mysqli_errno());
    }
}

/**
 * Insert into database
 * @param string
 * return TRUE
 */

public function insert($table, $keys, $values){     
    $condition = "INSERT INTO $table ($keys) VALUES('".$values."')";
    $query = $this->query($condition);
    return $query;
}

}

$database = new MySQLiDatabase();
$db =& $database;

现在我想创建一个工作正常的insert（）函数，但是当我在其中插入更多数据时，它给出了我在confirm_query（）函数中定义的错误

$database->insert('table', 'username', 'test');

我想要完成下面的内容

$database->insert('table', 'username,password,email', 'test,test,test@email.com');

Answer 1

最后问题解决了感谢@VIDesignz帮助我到目前为止用＃34; quots＆＃34;

这是函数

public function insert($table, $column, $value){
    $condition = "INSERT INTO $table ($column) VALUES ($value)";
    $query = $this->query($condition);
    return $query;
}

这就是我运行查询的方式

$database->insert( "table" , 'username,password,email' , " 'shaz3e' , 'securepassword', 'email@email.com' ");

接下来是创建更新/删除功能

Answer 2

好的，我不能说你的方法是最好的，但如果你坚持这样做的话。至少使用准备好的陈述......

（未经测试但应该可以正常工作）

设置这样的功能

 public function insert($table, $columns, $values, $execute){
    $sql = "INSERT INTO
            $table ($columns)
            VALUES ($values)"; 
    $query = $database->prepare($sql);
    $query->execute($execute);      
 }

然后每次调用你必须设置像这样的值

    $table = 'table_name';
    $columns = 'column_1, column_2, column_3';
    $values = ':value_1, :value_2, :value_3';
    $execute = array(':value_1' => 'First Value',
                     ':value_2' => 'Second Value',
                     ':value_3' => 'Third Value');

然后运行像这样的函数

 $database->insert($table, $columns, $values, $execute);

如何在类中创建insert（）函数以进行快速开发

2 个答案: