我将以下代码放入浏览器中?phase=1&step=0&fot=false，我得到一个黑页。与PHP错误
未定义变量：第 219 行 C:\Program Files (x86)\Zend\Apache2\htdocs\Proj11\1.php 中的 fOT
这是$this->createTablePages ($fOT);行。如果我将其更改为$this->createTablePages ($this->fOT)我收到以下错误
未定义的属性：第 219 行 C:\Program Files (x86)\Zend\Apache2\htdocs\Proj11\1.php 中的 phase2::$fOT
我知道$this->IDB3 = $this->handleDatabase()->$IDB3;在 __constructor 中是正确的。我怎么做？
class phase2 {
function __construct () {
$dbFile = 'dbconfig.php';
$this->dbFile = $dbFile;
include_once ("$this->dbFile");
$step = $_GET["step"];
$username = $DB_USER;
$password = $DB_PASS;
$server = $DB_SERVER;
$dbName = $DB_NAME;
$this->step = $step;
$this->dbFile = $dbFile;
$this->username = $username;
$this->password = $password;
$this->server = $server;
$this->dbName = $dbName;
$db = new PDO ('mysql:host=' .$server.';dbname='.$this->dbName,$this->username,$this->password);
$this->db = $db;
if (empty ($_GET['fot']) ) {
$fOT = 'false';
} elseif ($_GET['true']) { $fOT = 'true'; }
$this->IDB = $this->handleDatabase()->$IDB;
$this->IDB2 = $this->handleDatabase()->$IDB2;
$this->IDB3 = $this->handleDatabase()->$IDB3;
}
public function handleDatabase (){
// Prepare SQL Statements
$IDB = $this->db->prepare(
"CREATE TABLE pages (
id int(11) NOT NULL auto_increment,
subject_id int(11) NOT NULL,
menu_name varchar(30) NOT NULL,
position int(3) NOT NULL,
visible tinyint(1) NOT NULL,
content text NOT NULL,
PRIMARY KEY (id)
)ENGINE=MyISAM AUTO_INCREMENT=7 DEFAULT CHARSET=utf8");
$IDB2 = $this->db->prepare("
CREATE TABLE subjects (
id int(11) NOT NULL auto_increment,
menu_name varchar(30) NOT NULL,
position int(3) NOT NULL,
visible tinyint(1) NOT NULL,
PRIMARY KEY (id)
)ENGINE=MyISAM AUTO_INCREMENT=6 DEFAULT CHARSET=utf8");
$IDB3 = $this->db->prepare("
CREATE TABLE users (
id int(11) NOT NULL auto_increment,
username varchar(50) NOT NULL,
hashed_password varchar(40) NOT NULL,
PRIMARY KEY (id)
)ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=utf8");
}
//Set Option to True or False
function createTablePages ($fOT){
$r1 = $this->db->query('SHOW TABLES LIKE \'page\'');
if (count($r1->fetchAll()) > 0 && $fOT === 'false') {
echo "The table PAGE exists";
} elseif ($fOT === 'true') {
$this->IDB->execute;
$this->stepFunction (1,false);
}
}
function createTableSubjects ($fOT){
$r2 = $this->db->query('SHOW TABLES LIKE \'subjects\'');
if (count($r2->fetchAll()) > 0 && $fOT === 'false') {
echo "The table SUBJECTS exists ";
} elseif ($fOT === 'true') {
$this->IDB2->execute;
$this->stepFunction (2,false);
}
}
function createTableUsers ($fOT){
$r3 = $this->db->query('SHOW TABLES LIKE \'users\'');
if (count($r3->fetchAll()) > 0 && $fOT === 'false') {
echo "The table USERS exists";
} elseif ($fOT === 'true') {
$this->IDB3->execute;
echo "Would you like to populate all the tables?";
}
}
public function stepFunction ($step, $fOT){
switch ($step) {
case 0:
$this->createTablePages ($fOT);
break;
case 1:
$this->createTableSubjects($fOT);
break;
case 2: $this->createTableUsers ($fOT);
break;
}
}
}