在类中加载config.php
我想在类中加载配置文件。下面是config.php的内容在类中加载config.php,php,oop,class,object,include,Php,Oop,Class,Object,Include,我想在类中加载配置文件。下面是config.php的内容 <?php $__error_reporting_level=1; $server='localhost'; $user='root'; $password=''; $dbase='eauction'; ?> 我得到这个错误 无法选择数据库 忽略mysql注入问题,我只需要完美地执行代码 在类声明之前,您已经在全局范围中包含了该文件,而类方法范围无法访问该文件。如果要在类方法中使用这些变量,则需要通过$GLOBALS[]或g
<?php
$__error_reporting_level=1;
$server='localhost';
$user='root';
$password='';
$dbase='eauction';
?>
我得到这个错误
无法选择数据库
忽略mysql注入问题,我只需要完美地执行代码
在类声明之前,您已经在全局范围中包含了该文件,而类方法范围无法访问该文件。如果要在类方法中使用这些变量,则需要通过$GLOBALS[]或global关键字全局访问它们,或者更好地将它们传递给使用它们的函数
include ('config.php');
// Now all your variables are defined at global scope!!!
error_reporting($__error_reporting_level);
class sql
{
// Pass as params to the function
function connect($server, $user, $password, $dbase)
{
$connections = mysql_connect($server, $user,$password) or die ('Unabale to connect to the database');
mysql_select_db($dbase) or die ('Unable to select database!');
return;
}
// etc...
// etc...
}
您也可以考虑将它们设置为类属性,并在构造函数中传递它们:
class sql
{
public $server;
public $user;
public $password;
public $dbase;
public function __construct($server, $user, $password, $dbase) {
$this->server = $server;
$this->user = $user;
// etc...
$connections = mysql_connect($this->server, $this->user, $this->password);
}
}
在配置中使用定义的变量 试试这个
config.php
define('SERVER',$server);
define('USER',$user);
define('PASSWORD',$password);
define('DBASE',$dbase);
----------class----------
<?php
include ('config.php');
error_reporting($__error_reporting_level);
class sql
{
protected $server=SERVER;
protected $user=USER;
protected $password=PASSWORD;
protected $dbase=DBASE;
private function connect()
{
$connections = mysql_connect($this->server, $this->user,$this->password) or die ('Unabale to connect to the database');
mysql_select_db($this->dbase) or die ('Unable to select database!');
return;
}
........
........
为什么不使用.ini文件呢 config.ini 在你们班上有一些
class A {
public $config;
public function __construct() {
$this->config = parse_ini_file('config.ini', true);
}
public function sql() {
$connections = mysql_connect($this->config['server'], $this->config['user'],$this->config['password']) or die ('Unabale to connect to the database');
mysql_select_db($this->config['dbase']) or die ('Unable to select database!');
return;
}
}
另一种方法是,确保数据库的名称也正确
此外,如果要使用当前的config.php,则需要在使用中的变量的方法中包含。不能从该范围之外使用它
function connect()
{
include ('config.php');
$connections = mysql_connect($server, $user,$password) or die ('Unabale to connect to the database');
mysql_select_db($dbase) or die ('Unable to select database!');
return;
}
我可以这样做。。代码中的问题一定是config.php中声明的变量不可访问。你可以让它全球化,或者试试我的代码
<?php
class ConnectionSettings {
private $hostname = 'localhost';
private $username = 'root';
private $password = '';
private $db = 'cordiac_db';
protected $connLink;
// protected 'connect()' method
protected function connect(){
// establish connection
if(!$this->connLink = mysql_connect($this->hostname, $this->username, $this->password)) {
throw new Exception('Error connecting to MySQL: '.mysql_error());
}
// select database
if(!mysql_select_db($this->db, $this->connLink)) {
throw new Exception('Error selecting database: '.mysql_error());
}
}
}
试试这个
config.ini
[database]
username = root
password = 1
dbname = users
dsn = localhost
......
class Database{
public $koneksi;
function __construct(){
try{
$config = parse_ini_file('config.ini');
$this->koneksi = new PDO("mysql:host=" . $config['dsn'] . ";dbname=" . $config['dbname'], $config['username'],$config['password'],array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8"));
$this->koneksi->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
}catch(PDOException $e){
$e->getMessage();
}
}
}
您需要在中加载配置文件,以便使用变量:
class sql
{
function connect()
{
include 'config.php';
$connections = mysql_connect($server, $user,$password) or die ('Unabale to connect to the database');
mysql_select_db($dbase) or die ('Unable to select database!');
}
}
不能在类函数中直接使用$server、$user等。请确保数据库名称正确。数据库名称正确,兄弟!如果您生活在仅mysql的领域中,为什么还要创建数据库类而不是使用PDO或MySQLi?我想从config.php保存并加载mysql_connect参数,所以我不需要更新它!
<?php
class ConnectionSettings {
private $hostname = 'localhost';
private $username = 'root';
private $password = '';
private $db = 'cordiac_db';
protected $connLink;
// protected 'connect()' method
protected function connect(){
// establish connection
if(!$this->connLink = mysql_connect($this->hostname, $this->username, $this->password)) {
throw new Exception('Error connecting to MySQL: '.mysql_error());
}
// select database
if(!mysql_select_db($this->db, $this->connLink)) {
throw new Exception('Error selecting database: '.mysql_error());
}
}
}
config.ini
[database]
username = root
password = 1
dbname = users
dsn = localhost
......
class Database{
public $koneksi;
function __construct(){
try{
$config = parse_ini_file('config.ini');
$this->koneksi = new PDO("mysql:host=" . $config['dsn'] . ";dbname=" . $config['dbname'], $config['username'],$config['password'],array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8"));
$this->koneksi->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
}catch(PDOException $e){
$e->getMessage();
}
}
}
class sql
{
function connect()
{
include 'config.php';
$connections = mysql_connect($server, $user,$password) or die ('Unabale to connect to the database');
mysql_select_db($dbase) or die ('Unable to select database!');
}
}