ПрактикаWEB_2
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A DC |
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A DC- |
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<FORM ENCTYPE="multipart/form - data" ACTION="action.php" METHOD=POST> |
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<INPUT NAME="myfile" TYPE="file"> |
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<INPUT TYPE="submit" value=" |
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</FORM> |
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html - |
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browse, |
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<?php |
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if(isset($_FILES["myfile"])) // |
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{ |
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$catalog = "./image/"; // |
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if (is_dir($catalog)) // |
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{ |
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$myfile = $_FILES["myfile"]["tmp_name"]; // |
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$myfile_name = $_FILES["myfile"]["name"]; // x' |
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if(!copy($myfile, $catalog)) |
echo ' |
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'.$myfile_name // |
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} |
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} |
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<FORM ACTION="file.php" METHOD=POST> |
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<input name="mycolor" type="checkbox" value="blue"> |
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<input name="mycolor" type="checkbox" value="black"> |
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<input name="mycolor" type="checkbox" value="white"> |
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<input name="Submit" type=submit value=" |
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</FORM> |
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<?php |
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if (!empty($_POST['mycolor'])) echo $_POST['mycolor']; // |
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Uagter.txt. |
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<?php |
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$f=fopen("counter.txt", "a+t") or die(" |
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flock( |
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$s = fgets($f); |
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$s+=1; |
// $s=$s+1; |
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ftruncate ($f, 0); |
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fputs ($f, $s); |
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flock ($f, 3); |
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fclose($f); |
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echo $s; |
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?> |
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forma.html |
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echo " |
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6.1 - 4 4 |
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SQL : CREATE TABLE IF NOT EXISTS 'users' ( 'id' int(11) NOT NULL AUTO_INCREMENT, 'username' varchar(50) NOT NULL,
'password' varchar(50) NOT NULL, |
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'email' varchar(50) NOT NULL, |
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'join_date' datetime NOT NULL, |
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PRIMARY KEY ('id'), |
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UNIQUE KEY 'username' ('username') |
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) ENGINE=MyISAM DEFAULT CHARSET=latin1; |
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class DB { |
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protected $db_name = 'yourdatabasename'; |
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protected $db_user = 'databaseusername'; |
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protected $db_pass = 'databasepassword'; |
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protected $db_host = 'localhost'; |
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public function connect(){ |
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$connection = mysql_connect($this ->db_host, $this ->db_user, $this ->db_pass); |
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mysql_select_db($this ->db_name); |
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return true; |
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} |
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public function processRowSet($rowSet, $singleRow=false) |
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{ |
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$resultArray = array(); |
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while($row = mysql_fetch_assoc($rowSet)) |
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{ |
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array_push($resultArray, $row); |
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} |
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if($singleRow === true) |
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return $resultArray[0]; |
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return $resultArray; |
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} |
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// |
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public function select($table, $where){
$sql = "SELECT * FROM $table WHERE $where"; $result = mysql_query($sql); if(mysql_num_rows($result) == 1)
return $this ->processRowSet($result, true); return $this ->processRowSet($result);
}
//
public function update($data, $table, $where){ foreach ($data as $column => $value){
$sql = "UPDATE $table SET $column = $value WHERE $where"; |
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mysql_query($sql) or die(mysql_error()); |
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} |
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return true; |
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} |
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public function insert($data, $table){ |
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$columns = ""; |
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$values = ""; |
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foreach ($data as $column => $value){ |
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$columns .= ($columns == "")? "" : "; |
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$columns .= $column; |
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$values .= ($values == "")? "" : "; |
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$values .= $value; |
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} |
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$sql = "insert into $table ($columns) values ($values)"; |
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mysql_query($sql) or die(mysql_error()); |
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return mysql_insert_id(); |
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}}?> |
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$db = new DB(); |
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$db ->connect(); |
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$db = new DB(); |
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$data = array( |
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"username" => "'johndoe' |
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"email" => "'johndoe@email.com'" |
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//username - johndoe |
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$db ->update($data, 'users ', 'id = 3');
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require_once 'DB.class.php'; class User {
public $id;
public $username; public $hashedPassword; public $email;
public $joinDate;
)
//Takes an associative array with the DB row as an argument. function __construct($data){
$this ->id = (isset($data['id']))? $data['id'] : "";
$this ->username = (isset($data['username']))? $data['username'] : "";
$this ->hashedPassword = (isset($data['password']))? $data['password'] : ""; $this ->email = (isset($data['email']))? $data['email'] : "";
$this ->joinDate = (isset($data['join_date']))? $data['join_date'] : "";
}
public function save($isNewUser = false){ //create a new database object.
$db = new DB();
//if the user is already registered and we're //just updating their info. if(!$isNewUser){
//set the data array $data = array(
"username" => "'$this ->username' "password" => "'$this ->hashedPassword' "email" => "'$this ->email'"
);
//update the row in the database
$db ->update($data, 'users ', 'id = '.$this ->id); }else {
//if the user is being registered for the first time. $data = array(
"username" => "'$this ->username' "password" => "'$this ->hashedPassword'
"email" => "'$this ->email'
"join_date" => "'".date("Y - m - d H: i: s", time())".'" );
$this ->id = $db ->insert($data, 'users'); $this ->joinDate = time();
}
return true; }}?>
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//UserTools.class.php require_once 'User.class.php'; require_once 'DB.class.php'; class UserTools {
//Log the user in. First checks to see if the
//username and password match a row in the database. //If it is successful, set the session variables
//and store the user object within.
public function login($username, $password)
{
$hashedPassword = md5($password);
$result = mysql_query("SELECT * FROM users WHERE username = '$username' AND password = '$hashedPassword'");
if(mysql_num_rows($result) == 1)
{
$_SESSION["user"] = serialize(new User(mysql_fetch_assoc($result))); $_SESSION["login_time"] = time();
$_SESSION["logged_in"] = 1; return true;
}else{ return false;
}}
//Log the user out. Destroy the session variables. public function logout() { unset($_SESSION['user']); unset($_SESSION['login_time']); unset($_SESSION['logged_in']); session_destroy();
}
//Check to see if a username exists.
//This is called during registration to make sure all user names are unique. public function checkUsernameExists($username) {
$result = mysql_query("select id from users where username='$username'"); if(mysql_num_rows($result) == 0)
{
return false; }else{ return true;
}}
//get a user
//returns a User object. Takes the users id as an input public function get($id)
{
$db = new DB();
$result = $db->select('users', "id = $id"); return new User($result);
}}
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//note: you will have to open up a database connection first. //see Part 1 for further information on doing so.
//You'll also have to make sure that you've included the class files. $tools = new UserTools();
$user = $tools->get($_REQUEST['userID']); echo "Username: ".$user->username."";
echo "Joined On: ".$user->joinDate."";
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require_once 'classes/UserTools.class.php'; require_once 'classes/DB.class.php'; //connect to the database
$db = new DB(); $db->connect();
//initialize UserTools object $userTools = new UserTools(); //start the session session_start();
//refresh session variables if logged in if(isset($_SESSION['logged_in'])) { $user = unserialize($_SESSION['user']);
$_SESSION['user'] = serialize($userTools->get($user->id));
}
?>
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checkUsernameExists($username)) |
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{ |
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$error .= "That username is already taken.<br/> \n\r"; |
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$success = false; |
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} |
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// |
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if($password != $password_confirm){ |
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$error .= "Passwords do not match.<br/> \n\r"; |
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$success = false; |
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} |
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if($success) |
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// |
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