یه نمونه کلاس کار با دیتابیس با pdo نوشتم امیدوارم به کارتون بیاد
class.php
<?php
class content
{
private $host = DB_HOST;
private $user = DB_USER;
private $pass = DB_PASS;
private $dbname = DB_NAME;
private $stmt;
private $dbh;
private $error;
public function __construct(){
// Set DSN
$dsn = 'mysql:host=' . $this->host . ';dbname=' . $this->dbname;
// Set options
$options = array(
PDO::ATTR_PERSISTENT => true,
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8"
);
// Create a new PDO instanace
try{
$this->dbh = new PDO($dsn, $this->user, $this->pass, $options);
/*** close the database connection ***/
//$this->dbh = null;
}
// Catch any errors
catch(PDOException $e){
$this->error = $e->getMessage();
}
}
// query
public function query($query){
$this->stmt = $this->dbh->prepare($query);
}
public function bind($param, $value, $type = null){
if (is_null($type)) {
switch (true) {
case is_int($value):
$type = PDO::PARAM_INT;
break;
case is_bool($value):
$type = PDO::PARAM_BOOL;
break;
case is_null($value):
$type = PDO::PARAM_NULL;
break;
default:
$type = PDO::PARAM_STR;
}
}
$this->stmt->bindValue($param, $value, $type);
}
public function execute(){
return $this->stmt->execute();
}
public function resultset(){
$this->execute();
return $this->stmt->fetchAll(PDO::FETCH_ASSOC);
}
public function single(){
$this->execute();
return $this->stmt->fetch(PDO::FETCH_ASSOC);
}
public function rowCount(){
return $this->stmt->rowCount();
}
public function lastInsertId(){
return $this->dbh->lastInsertId();
}
public function beginTransaction(){
return $this->dbh->beginTransaction();
}
public function endTransaction(){
return $this->dbh->commit();
}
public function cancelTransaction(){
return $this->dbh->rollBack();
}
public function debugDumpParams(){
return $this->stmt->debugDumpParams();
}
}
?>
مثال نحوه ی فراخوانی در حلقه
function slider()
{
$class=new content;
$qr=$class->query('select * from `tbl_slider` order by `id` desc ');
$row=$class->resultset();
foreach($row as $key => $value)
{
echo'
<div class="slide">
<img src="'.inc.'imgsize.php?w=370&h=280&img='.upload.''.$row[$key]['pic'].'" alt="'.$row[$key]['title'].'"/>
</div>
';
}
}
مثال بدون حلقه
function slider()
{
$class=new content;
$qr=$class->query('select * from `tbl_slider` ');
$row=$class->single();
echo'
<div class="slide">
<img src="'.inc.'imgsize.php?w=370&h=280&img='.upload.''.$row['pic'].'" alt="'.$row['title'].'"/>
</div>
';
}
با استفاده از شرط
function showproduct()
{
$class=new content;
$qr=$class->query('select * from `tbl_activity` where `id`=:id ');
$class->bind(':id',$_GET['id']);
$row=$class->single();
echo'
<h2 class="titleah">'.$row['title'].'</h2>
';
}
مثال update
$class=new content;
$class->query("UPDATE `tbl_admin` SET
`fullname` = :fullname,
`user` = :user,
`pass` = :pass,
`superadmin` = :superadmin,
`pic` = :dir,
where `aid`=:edit ");
$class->bind(':fullname',$fullname);
$class->bind(':user',$user);
$class->bind(':pass',$pass);
$class->bind(':superadmin',$superadmin);
$class->bind(':dir',$dir);
$class->bind(':edit',$edit);
$class->execute();
مثال insert
$class=new content;
$class->query("INSERT INTO `tbl_admin`
(`aid` ,`user`,`pass`,`fullname`,`superadmin` ,`pic`)
VALUES (NULL , ?,?,?,?,?)");
$class->bind(1,!is_null($user) ? $user :'');
$class->bind(2,!is_null($pass) ? $pass :'');
$class->bind(3,!is_null($fullname) ? $fullname :'');
$class->bind(4,!is_null($superadmin) ? $superadmin :'');
$class->bind(5,!is_null($dir) ? $dir :'');
$class->execute();
مثال delete
$class=new content;
$class->query("delete from `tbl_admin` where `aid`=:aid");
$class->bind(':aid',$aid);
$class->execute();
اگه هم مشکلی داره می شه کاملتر و بهترش کرد بگید ممنون