[phpBB Debug] PHP Warning: in file [ROOT]/includes/crs/crs_misc_functions.php on line 37: mime_content_type(): Empty filename or path Zen Cart 源代码 class.base.php
<?php
/**
* File contains just the base class
*
* @package classes
* @copyright Copyright 2003-2014 Zen Cart Development Team
* @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0
* @version GIT: $Id: Author: Ian Wilson Wed Mar 12 20:31:27 2014 +0000 Modified in v1.5.3 $ */
/**
* abstract class base
*
* any class that wants to notify or listen for events must extend this base class
*
* @package classes
*/
class base {
/**
* method used to an attach an observer to the notifier object
*
* NB. We have to get a little sneaky here to stop session based classes adding events ad infinitum
* To do this we first concatenate the class name with the event id, as a class is only ever going to attach to an
* event id once, this provides a unique key. To ensure there are no naming problems with the array key, we md5 the
* unique name to provide a unique hashed key.
*
* @param object Reference to the observer class
* @param array An array of eventId's to observe
*/
function attach(&$observer, $eventIDArray) {
foreach($eventIDArray as $eventID) {
$nameHash = md5(get_class($observer).$eventID);
base::setStaticObserver($nameHash, array('obs'=>&$observer, 'eventID'=>$eventID));
}
}
/**
* method used to detach an observer from the notifier object
* @param object
* @param array
*/
function detach($observer, $eventIDArray) {
foreach($eventIDArray as $eventID) {
$nameHash = md5(get_class($observer).$eventID);
base::unsetStaticObserver($nameHash);
}
}
/**
* method to notify observers that an event has occurred in the notifier object
* Can optionally pass parameters and variables to the observer, useful for passing stuff which is outside of the 'scope' of the observed class.
* Any of params 2-9 can be passed by reference, and will be updated in the calling location if the observer "update" function also receives them by reference
*
* @param string The event ID to notify.
* @param mixed passed as value only.
* @param mixed Passed by reference.
* @param mixed Passed by reference.
* @param mixed Passed by reference.
* @param mixed Passed by reference.
* @param mixed Passed by reference.
* @param mixed Passed by reference.
* @param mixed Passed by reference.
* @param mixed Passed by reference.
*
* NOTE: The $param1 is not received-by-reference, but params 2-9 are.
* NOTE: The $param1 value CAN be an array, and is sometimes typecast to be an array, but can also safely be a string or int etc if the notifier sends such and the observer class expects same.
*/
function notify($eventID, $param1 = array(), & $param2 = NULL, & $param3 = NULL, & $param4 = NULL, & $param5 = NULL, & $param6 = NULL, & $param7 = NULL, & $param8 = NULL, & $param9 = NULL ) {
// notifier trace logging - for advanced debugging purposes only --- NOTE: This log file can get VERY big VERY quickly! if (defined('NOTIFIER_TRACE') && NOTIFIER_TRACE != '' && NOTIFIER_TRACE != 'false' && NOTIFIER_TRACE != 'Off') {
$file = DIR_FS_LOGS . '/notifier_trace.log';
$paramArray = (is_array($param1) && sizeof($param1) == 0) ? array() : array('param1' => $param1);
for ($i = 2; $i < 10; $i++) {
$param_n = "param$i";
if ($$param_n !== NULL) {
$paramArray[$param_n] = $$param_n;
}
}
global $this_is_home_page, $PHP_SELF;
$main_page = (isset($this_is_home_page) && $this_is_home_page) ? 'index-home' : (IS_ADMIN_FLAG) ? basename($PHP_SELF) : (isset($_GET['main_page'])) ? $_GET['main_page'] : '';
$output = '';
if (count($paramArray)) {
$output = ', ';
if (NOTIFIER_TRACE == 'var_export' || NOTIFIER_TRACE == 'var_dump' || NOTIFIER_TRACE == 'true') {
$output .= var_export($paramArray, true); } elseif (NOTIFIER_TRACE == 'print_r' || NOTIFIER_TRACE == 'On' || NOTIFIER_TRACE === TRUE) { $output .= print_r($paramArray, true); }
} error_log( strftime("%Y-%m-%d %H:%M:%S") . ' [main_page=' . $main_page . '] ' . $eventID . $output . "\n", 3, $file); }
// handle observers
// observers can fire either a generic update() method, or a notifier-point-specific updateNotifierPointCamelCased() method. The specific one will fire if found; else the generic update() will fire instead. $observers = & base::getStaticObserver();
if (is_null($observers)) {
return; } else {
foreach($observers as $key=>$obs) {
if ($obs['eventID'] == $eventID || $obs['eventID'] === '*') { $method = 'update';
$testMethod = $method . self::camelize(strtolower($eventID), TRUE);
if (method_exists($obs['obs'], $testMethod))
$method = $testMethod;
$obs['obs']->{$method}($this, $eventID, $param1,$param2,$param3,$param4,$param5,$param6,$param7,$param8,$param9);
}
}
}
}
function & getStaticProperty($var)
{
static $staticProperty;
return $staticProperty;
}
function & getStaticObserver() {
return base::getStaticProperty('observer');
}
function setStaticObserver($element, $value)
{
$observer = & base::getStaticObserver();
if (!is_array($observer)) {
$observer = array ();
}
$observer[$element] = $value;
}
function unsetStaticObserver($element)
{
$observer = & base::getStaticObserver();
unset($observer[$element]);
}
public static function camelize($rawName, $camelFirst = FALSE)
{
if ($rawName == "")
return $rawName;
if ($camelFirst)
{
$rawName[0] = strtoupper($rawName[0]);
}
return preg_replace_callback('/[_-]([0-9,a-z])/', create_function('$matches', 'return strtoupper($matches[1]);'), $rawName);
}
}
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