我在设置数据库文件时遇到问题请帮帮我。 我正在http://toorhamza.host56.com/测试一个文件主机脚本，打开我的网站时出现此错误
解析错误：语法错误，意外T_CONSTANT_ENCAPSED_STRING，期待第23行/home/a6788850/public_html/includes/class.database.php中的T_STRING或T_VARIABLE或'{'或'$'
这是我的class.database.php文件和行
<?php
class Database
{
// Singleton object. Leave $me alone.
private static $me;
public $db;
public $host;
public $name;
public $username;
public $password;
public $dieOnError;
public $queries;
public $result;
public $redirect = false;
// Singleton constructor
private function __construct($connect = false)
{
$Config = Config::getConfig();
$this->host = $Config->"localhost";
$this->name = $Config->'test';
$this->username = $Config->'test';
$this->password = $Config->'password';
$this->dieOnError = $Config->dbDieOnError;
$this->db = false;
$this->queries = array();
if ($connect === true)
$this->connect();
}
// Waiting (not so) patiently for 5.3.0...
public static function __callStatic($name, $args)
{
return self::$me->__call($name, $args);
}
// Get Singleton object
public static function getDatabase($connect = true)
{
if (is_null(self::$me))
self::$me = new Database($connect);
return self::$me;
}
// Do we have a valid database connection?
public function isConnected()
{
return is_resource($this->db) && get_resource_type($this->db) == 'mysql link';
}
// Do we have a valid database connection and have we selected a database?
public function databaseSelected()
{
if (!$this->isConnected())
return false;
$result = mysql_list_tables($this->name, $this->db);
return is_resource($result);
}
public function connect()
{
$this->db = mysql_connect($this->host, $this->username, $this->password) or $this->notify('Failed connecting to the database with the supplied connection details. Please check the details are correct and your MySQL user has permissions to access this database.<br/><br/>(host: ' . $this->host . ', user: ' . $this->username . ', pass: ********)');
if ($this->db === false)
return false;
mysql_select_db($this->name, $this->db) or $this->notify();
if($this->isConnected())
{
mysql_set_charset('UTF-8', $this->db);
$this->query("SET NAMES utf8");
}
return $this->isConnected();
}
public function close()
{
if ($this->db)
{
mysql_close($this->db);
}
$this->db = false;
$this->queries = array();
}
public function query($sql, $args_to_prepare = null, $exception_on_missing_args = true)
{
if (!$this->isConnected())
$this->connect();
// Allow for prepared arguments. Example:
// query("SELECT * FROM table WHERE id = :id", array('id' => $some_val));
if (is_array($args_to_prepare))
{
foreach ($args_to_prepare as $name => $val)
{
$val = $this->quote($val);
$sql = str_replace(":$name", $val, $sql, $count);
if ($exception_on_missing_args && (0 == $count))
throw new Exception(":$name was not found in prepared SQL query.");
}
}
$this->queries[] = $sql;
$this->result = mysql_query($sql, $this->db) or $this->notify();
return $this->result;
}
// Returns the number of rows.
// You can pass in nothing, a string, or a db result
public function numRows($arg = null)
{
$result = $this->resulter($arg);
return ($result !== false) ? mysql_num_rows($result) : false;
}
// Returns true / false if the result has one or more rows
public function hasRows($arg = null)
{
$result = $this->resulter($arg);
return is_resource($result) && (mysql_num_rows($result) > 0);
}
// Returns the number of rows affected by the previous operation
public function affectedRows()
{
if (!$this->isConnected())
return false;
return mysql_affected_rows($this->db);
}
// Returns the auto increment ID generated by the previous insert statement
public function insertId()
{
if (!$this->isConnected())
return false;
$id = mysql_insert_id($this->db);
if ($id === 0 || $id === false)
return false;
else
return $id;
}
// Returns a single value.
// You can pass in nothing, a string, or a db result
public function getValue($arg = null)
{
$result = $this->resulter($arg);
return $this->hasRows($result) ? mysql_result($result, 0, 0) : false;
}
// Returns an array of the first value in each row.
// You can pass in nothing, a string, or a db result
public function getValues($arg = null)
{
$result = $this->resulter($arg);
if (!$this->hasRows($result))
return array();
$values = array();
mysql_data_seek($result, 0);
while ($row = mysql_fetch_array($result, MYSQL_ASSOC))
$values[] = array_pop($row);
return $values;
}
// Returns the first row.
// You can pass in nothing, a string, or a db result
public function getRow($arg = null)
{
$result = $this->resulter($arg);
return $this->hasRows() ? mysql_fetch_array($result, MYSQL_ASSOC) : false;
}
// Returns an array of all the rows.
// You can pass in nothing, a string, or a db result
public function getRows($arg = null)
{
$result = $this->resulter($arg);
if (!$this->hasRows($result))
return array();
$rows = array();
mysql_data_seek($result, 0);
while ($row = mysql_fetch_array($result, MYSQL_ASSOC))
$rows[] = $row;
return $rows;
}
// Escapes a value and wraps it in single quotes.
public function quote($var)
{
if (!$this->isConnected())
$this->connect();
return "'" . $this->escape($var) . "'";
}
// Escapes a value.
public function escape($var)
{
if (!$this->isConnected())
$this->connect();
return mysql_real_escape_string($var, $this->db);
}
public function numQueries()
{
return count($this->queries);
}
public function lastQuery()
{
if ($this->numQueries() > 0)
return $this->queries[$this->numQueries() - 1];
else
return false;
}
private function notify($err_msg = null)
{
if ($err_msg === null)
{
$err_msg = mysql_error($this->db);
}
error_log($err_msg);
if ($this->dieOnError === true)
{
echo "<p style='border:5px solid red;background-color:#fff;padding:12px;font-family: verdana, sans-serif;'><strong>Database Error:</strong><br/>$err_msg</p>";
if (strlen($this->lastQuery()))
{
echo "<p style='border:5px solid red;background-color:#fff;padding:12px;font-family: verdana, sans-serif;'><strong>Last Query:</strong><br/>" . $this->lastQuery() . "</p>";
}
//echo "<pre>";
//debug_print_backtrace();
//echo "</pre>";
exit;
}
if (is_string($this->redirect))
{
header("Location: {$this->redirect}");
exit;
}
}
// Takes nothing, a MySQL result, or a query string and returns
// the correspsonding MySQL result resource or false if none available.
private function resulter($arg = null)
{
if (is_null($arg) && is_resource($this->result))
return $this->result;
elseif (is_resource($arg))
return $arg;
elseif (is_string($arg))
{
$this->query($arg);
if (is_resource($this->result))
return $this->result;
else
return false;
}
else
return false;
}
}
请帮助我谢谢。
答案 0 :(得分：0)
在第23行$this->host = $Config->"localhost";
localhost应该使用单引号
像这样：$this->host = $Config->'localhost';