想试试cakephp，将其解压到apache的htdocs目录后，访问出现strtotime调用问题、时区设置问题

[lampkid]

下面是访问cakephp目录下的index.php浏览器给出的提示：

Warning (2): strtotime() [function.strtotime]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'UTC' for '8.0/no DST' instead [CORE\cake\libs\cache.php, line 597]Code | Context$settings	=	array(
	"engine" => "File",
	"path" => "I:\Apache\Apache2.2\htdocs\cakephp-1.3.9-0\app\tmp\cache\persistent\",
	"prefix" => "cake_core_",
	"lock" => false,
	"serialize" => true,
	"isWindows" => true,
	"duration" => "+10 seconds",
	"probability" => 100
)strtotime - [internal], line ??
CacheEngine::init() - CORE\cake\libs\cache.php, line 597
FileEngine::init() - CORE\cake\libs\cache\file.php, line 81
Cache::_buildEngine() - CORE\cake\libs\cache.php, line 166
Cache::config() - CORE\cake\libs\cache.php, line 141
Configure::__loadBootstrap() - CORE\cake\libs\configure.php, line 421
Configure::getInstance() - CORE\cake\libs\configure.php, line 52
include - CORE\cake\bootstrap.php, line 38
require - APP\webroot\index.php, line 76
[main] - CORE\index.php, line 55

Notice: Trying to get property of non-object in I:\Apache\Apache2.2\htdocs\cakephp-1.3.9-0\cake\libs\cache\file.php on line 248

Fatal error: Call to a member function cd() on a non-object in I:\Apache\Apache2.2\htdocs\cakephp-1.3.9-0\cake\libs\cache\file.php on line 248

我然后看了下它所提示的源代码：

//cache.php

class CacheEngine {

/**
 * Settings of current engine instance
 *
 * @var int
 * @access public
 */
	var $settings = array();

/**
 * Initialize the cache engine
 *
 * Called automatically by the cache frontend
 *
 * @param array $params Associative array of parameters for the engine
 * @return boolean True if the engine has been succesfully initialized, false if not
 * @access public
 */
	function init($settings = array()) {
		$this->settings = array_merge(
			array('prefix' => 'cake_', 'duration'=> 3600, 'probability'=> 100),
			$this->settings,
			$settings
		);
		if (!is_numeric($this->settings['duration'])) {
			$this->settings['duration'] = strtotime($this->settings['duration']) - time();
		}
		return true;
	}

/**
 * Garbage collection
 *
 * Permanently remove all expired and deleted data
 *
 * @access public
 */
	function gc() {
	}

/**
 * Write value for a key into cache
 *
 * @param string $key Identifier for the data
 * @param mixed $value Data to be cached
 * @param mixed $duration How long to cache the data, in seconds
 * @return boolean True if the data was succesfully cached, false on failure
 * @access public
 */
	function write($key, &$value, $duration) {
		trigger_error(sprintf(__('Method write() not implemented in %s', true), get_class($this)), E_USER_ERROR);
	}

/**
 * Read a key from the cache
 *
 * @param string $key Identifier for the data
 * @return mixed The cached data, or false if the data doesn't exist, has expired, or if there was an error fetching it
 * @access public
 */
	function read($key) {
		trigger_error(sprintf(__('Method read() not implemented in %s', true), get_class($this)), E_USER_ERROR);
	}

/**
 * Increment a number under the key and return incremented value
 *
 * @param string $key Identifier for the data
 * @param integer $offset How much to add
 * @return New incremented value, false otherwise
 * @access public
 */
	function increment($key, $offset = 1) {
		trigger_error(sprintf(__('Method increment() not implemented in %s', true), get_class($this)), E_USER_ERROR);
	}
/**
 * Decrement a number under the key and return decremented value
 *
 * @param string $key Identifier for the data
 * @param integer $value How much to substract
 * @return New incremented value, false otherwise
 * @access public
 */
	function decrement($key, $offset = 1) {
		trigger_error(sprintf(__('Method decrement() not implemented in %s', true), get_class($this)), E_USER_ERROR);
	}
/**
 * Delete a key from the cache
 *
 * @param string $key Identifier for the data
 * @return boolean True if the value was succesfully deleted, false if it didn't exist or couldn't be removed
 * @access public
 */
	function delete($key) {
	}

/**
 * Delete all keys from the cache
 *
 * @param boolean $check if true will check expiration, otherwise delete all
 * @return boolean True if the cache was succesfully cleared, false otherwise
 * @access public
 */
	function clear($check) {
	}

/**
 * Cache Engine settings
 *
 * @return array settings
 * @access public
 */
	function settings() {
		return $this->settings;
	}

/**
 * Generates a safe key for use with cache engine storage engines.
 *
 * @param string $key the key passed over
 * @return mixed string $key or false
 * @access public
 */
	function key($key) {
		if (empty($key)) {
			return false;
		}
		$key = Inflector::underscore(str_replace(array(DS, '/', '.'), '_', strval($key)));
		return $key;
	}
}

[lampkid]

 //cathe/file.php

<?php
/**
 * File Storage engine for cache
 *
 *
 * PHP versions 4 and 5
 *
 * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
 * Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
 *
 * Licensed under The MIT License
 * Redistributions of files must retain the above copyright notice.
 *
 * @copyright     Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
 * @link          http://cakephp.org CakePHP(tm) Project
 * @package       cake
 * @subpackage    cake.cake.libs.cache
 * @since         CakePHP(tm) v 1.2.0.4933
 * @license       MIT License (http://www.opensource.org/licenses/mit-license.php)
 */

if (!class_exists('File')) {
	require LIBS . 'file.php';
}
/**
 * File Storage engine for cache
 *
 * @todo use the File and Folder classes (if it's not a too big performance hit)
 * @package       cake
 * @subpackage    cake.cake.libs.cache
 */
class FileEngine extends CacheEngine {

/**
 * Instance of File class
 *
 * @var File
 * @access protected
 */
	var $_File = null;

/**
 * Settings
 * 
 * - path = absolute path to cache directory, default => CACHE
 * - prefix = string prefix for filename, default => cake_
 * - lock = enable file locking on write, default => false
 * - serialize = serialize the data, default => true
 *
 * @var array
 * @see CacheEngine::__defaults
 * @access public
 */
	var $settings = array();

/**
 * True unless FileEngine::__active(); fails
 *
 * @var boolean
 * @access protected
 */
	var $_init = true;

/**
 * Initialize the Cache Engine
 *
 * Called automatically by the cache frontend
 * To reinitialize the settings call Cache::engine('EngineName', [optional] settings = array());
 *
 * @param array $setting array of setting for the engine
 * @return boolean True if the engine has been successfully initialized, false if not
 * @access public
 */
	function init($settings = array()) {
		parent::init(array_merge(
			array(
				'engine' => 'File', 'path' => CACHE, 'prefix'=> 'cake_', 'lock'=> false,
				'serialize'=> true, 'isWindows' => false
			),
			$settings
		));
		if (!isset($this->_File)) {
			$this->_File =& new File($this->settings['path'] . DS . 'cake');
		}

		if (DIRECTORY_SEPARATOR === '\\') {
			$this->settings['isWindows'] = true;
		}

		$path = $this->_File->Folder->cd($this->settings['path']);
		if ($path) {
			$this->settings['path'] = $path;
		}
		return $this->__active();
	}

/**
 * Garbage collection. Permanently remove all expired and deleted data
 *
 * @return boolean True if garbage collection was succesful, false on failure
 * @access public
 */
	function gc() {
		return $this->clear(true);
	}

/**
 * Write data for key into cache
 *
 * @param string $key Identifier for the data
 * @param mixed $data Data to be cached
 * @param mixed $duration How long to cache the data, in seconds
 * @return boolean True if the data was succesfully cached, false on failure
 * @access public
 */
	function write($key, &$data, $duration) {
		if ($data === '' || !$this->_init) {
			return false;
		}

		if ($this->_setKey($key) === false) {
			return false;
		}

		$lineBreak = "\n";

		if ($this->settings['isWindows']) {
			$lineBreak = "\r\n";
		}

		if (!empty($this->settings['serialize'])) {
			if ($this->settings['isWindows']) {
				$data = str_replace('\\', '\\\\\\\\', serialize($data));
			} else {
				$data = serialize($data);
			}
		}

		if ($this->settings['lock']) {
			$this->_File->lock = true;
		}
		$expires = time() + $duration;
		$contents = $expires . $lineBreak . $data . $lineBreak;
		$success = $this->_File->write($contents);
		$this->_File->close();
		return $success;
	}

/**
 * Read a key from the cache
 *
 * @param string $key Identifier for the data
 * @return mixed The cached data, or false if the data doesn't exist, has expired, or if there was an error fetching it
 * @access public
 */
	function read($key) {
		if ($this->_setKey($key) === false || !$this->_init || !$this->_File->exists()) {
			return false;
		}
		if ($this->settings['lock']) {
			$this->_File->lock = true;
		}
		$time = time();
		$cachetime = intval($this->_File->read(11));

		if ($cachetime !== false && ($cachetime < $time || ($time + $this->settings['duration']) < $cachetime)) {
			$this->_File->close();
			return false;
		}
		$data = $this->_File->read(true);

		if ($data !== '' && !empty($this->settings['serialize'])) {
			if ($this->settings['isWindows']) {
				$data = str_replace('\\\\\\\\', '\\', $data);
			}
			$data = unserialize((string)$data);
		}
		$this->_File->close();
		return $data;
	}

/**
 * Delete a key from the cache
 *
 * @param string $key Identifier for the data
 * @return boolean True if the value was successfully deleted, false if it didn't exist or couldn't be removed
 * @access public
 */
	function delete($key) {
		if ($this->_setKey($key) === false || !$this->_init) {
			return false;
		}
		return $this->_File->delete();
	}

/**
 * Delete all values from the cache
 *
 * @param boolean $check Optional - only delete expired cache items
 * @return boolean True if the cache was succesfully cleared, false otherwise
 * @access public
 */
	function clear($check) {
		if (!$this->_init) {
			return false;
		}
		$dir = dir($this->settings['path']);
		if ($check) {
			$now = time();
			$threshold = $now - $this->settings['duration'];
		}
		$prefixLength = strlen($this->settings['prefix']);
		while (($entry = $dir->read()) !== false) {
			if (substr($entry, 0, $prefixLength) !== $this->settings['prefix']) {
				continue;
			}
			if ($this->_setKey($entry) === false) {
				continue;
			}
			if ($check) {
				$mtime = $this->_File->lastChange();

				if ($mtime === false || $mtime > $threshold) {
					continue;
				}

				$expires = $this->_File->read(11);
				$this->_File->close();

				if ($expires > $now) {
					continue;
				}
			}
			$this->_File->delete();
		}
		$dir->close();
		return true;
	}

/**
 * Get absolute file for a given key
 *
 * @param string $key The key
 * @return mixed Absolute cache file for the given key or false if erroneous
 * @access private
 */
	function _setKey($key) {
		$this->_File->Folder->cd($this->settings['path']);
		if ($key !== $this->_File->name) {
			$this->_File->name = $key;
			$this->_File->path = null;
		}
		if (!$this->_File->Folder->inPath($this->_File->pwd(), true)) {
			return false;
		}
	}

/**
 * Determine is cache directory is writable
 *
 * @return boolean
 * @access private
 */
	function __active() {
		if ($this->_init && !is_writable($this->settings['path'])) {
			$this->_init = false;
			trigger_error(sprintf(__('%s is not writable', true), $this->settings['path']), E_USER_WARNING);
			return false;
		}
		return true;
	}
}

按提示说，是时区设置的问题，但是strtotime和时区设置有什么关系，这个函数至于时间戳的起始时间有关，即1970年1月1日0点整。
提示说依照系统时区设置不安全，让我使用date.timezone 或date_default_timezone_set() ，怎么搞？初次接触，就遇到这样一个问题。求各位帮忙、、

[lampkid]

function init($settings = array()) {
$this->settings = array_merge(
array('prefix' => 'cake_', 'duration'=> 3600, 'probability'=> 100),
$this->settings,
$settings
);
if (!is_numeric($this->settings['duration'])) {
$this->settings['duration'] = strtotime($this->settings['duration']) - time();
}
return true;
}

上面摘录的代码有点长，我拉出来一个举个例子给大家看看、、就上面这个

[lampkid]

在这里我似乎找到了答案，大家可以看看。让我先试试去

[xuzuning]

Warning (2): strtotime() [function.strtotime]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'UTC' for '8.0/no DST' instead

这是 php 5.3 才有的错误
你需要设置时区，
可以在 php.ini 中设置 date.timezone 的值
也可以在程序中用 date_default_timezone_set() 函数设置
参数为 PRC

[lampkid]

[Quote=引用 4 楼 xuzuning 的回复:]
Warning (2): strtotime() [function.strtotime]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function……
[/Quote]

嗯，谢谢。
只不过又出现了新的错误：

上面那个问题终于解决了，不过又出现了新的问题，待我先记录下来：


供以后参考：

Release Notes for CakePHP 1.3.9.
Read the changelog 
Notice (1024): Please change the value of 'Security.salt' in app/config/core.php to a salt value specific to your application [CORE\cake\libs\debugger.php, line 684]Code    function checkSecurityKeys() {
        if (Configure::read('Security.salt') == 'DYhG93b0qyJfIxfs2guVoUubWwvniR2G0FgaC9mi') {
            trigger_error(__('Please change the value of \'Security.salt\' in app/config/core.php to a salt value specific to your application', true), E_USER_NOTICE);Debugger::checkSecurityKeys() - CORE\cake\libs\debugger.php, line 684
include - CORE\cake\libs\view\pages\home.ctp, line 27
View::_render() - CORE\cake\libs\view\view.php, line 731
View::render() - CORE\cake\libs\view\view.php, line 426
Controller::render() - CORE\cake\libs\controller\controller.php, line 909
PagesController::display() - CORE\cake\libs\controller\pages_controller.php, line 83
Dispatcher::_invoke() - CORE\cake\dispatcher.php, line 204
Dispatcher::dispatch() - CORE\cake\dispatcher.php, line 171
require - APP\webroot\index.php, line 83
[main] - CORE\index.php, line 55Notice (1024): Please change the value of 'Security.cipherSeed' in app/config/core.php to a numeric (digits only) seed value specific to your application [CORE\cake\libs\debugger.php, line 688]Code
        if (Configure::read('Security.cipherSeed') === '76859309657453542496749683645') {
            trigger_error(__('Please change the value of \'Security.cipherSeed\' in app/config/core.php to a numeric (digits only) seed value specific to your application', true), E_USER_NOTICE);Debugger::checkSecurityKeys() - CORE\cake\libs\debugger.php, line 688
include - CORE\cake\libs\view\pages\home.ctp, line 27
View::_render() - CORE\cake\libs\view\view.php, line 731
View::render() - CORE\cake\libs\view\view.php, line 426
Controller::render() - CORE\cake\libs\controller\controller.php, line 909
PagesController::display() - CORE\cake\libs\controller\pages_controller.php, line 83
Dispatcher::_invoke() - CORE\cake\dispatcher.php, line 204
Dispatcher::dispatch() - CORE\cake\dispatcher.php, line 171
require - APP\webroot\index.php, line 83
[main] - CORE\index.php, line 55Your tmp directory is writable.

The FileEngine is being used for caching. To change the config edit APP/config/core.php 

Your database configuration file is NOT present.
Rename config/database.php.default to config/database.php

Editing this Page
To change the content of this page, create: APP/views/pages/home.ctp.
To change its layout, create: APP/views/layouts/default.ctp.
You can also add some CSS styles for your pages at: APP/webroot/css.

Getting Started

看图：

[学生哥哥]

这不是错误，这只是提示。

[lampkid]

[Quote=引用 6 楼 yunchatnet 的回复:]
这不是错误，这只是提示。
[/Quote]嗯，就是不正常、