时间：2021-07-01 10:21:17 帮助过：3人阅读
本文实例讲述了php广告加载类的用法，非常实用。分享给大家供大家参考。具体方法如下：
该php广告加载类，支持异步与同步加载。需要使用Jquery实现。
ADLoader.class.php类文件如下：
<?php
/** 广告加载管理类
* Date: 2013-08-04
* Author: fdipzone
* Ver: 1.0
*
* Func:
* public load 加载广告集合
* public setConfig 广告配置
* private getAds 根据channel创建广告集合
* private genZoneId zoneid base64_encode 处理
* private genHtml 生成广告html
* private checkBrowser 检查是否需要同步加载的浏览器
*/
class ADLoader{ // class start
private static $_ads = array(); // 广告集合
private static $_step = 300; // 广告加载间隔
private static $_async = true; // 是否异步加载
private static $_config = array(); // 广告设置文件
private static $_jsclass = null; // 广告JS class
/** 加载广告集合
* @param String $channel 栏目,对应config文件
* @param int $step 广告加载间隔
* @param boolean $async 是否异步加载
*/
public static function load($channel='', $step='', $async=''){
if(isset($step) && is_numeric($step) && $step>0){
self::$_step = $step;
}
if(isset($async) && is_bool($async)){
self::$_async = $async;
}
// 判断浏览器,如IE强制使用同步加载
if(!self::checkBrowser()){
self::$_async = false;
}
self::getAds($channel);
self::genZoneId();
return self::genHtml();
}
/** 设置config
* @param String $config 广告配置
* @param String $jsclass js class文件路径
*/
public static function setConfig($config=array(), $jsclass=''){
self::$_config = $config;
self::$_jsclass = $jsclass;
}
/** 根据channel创建广告集合
* @param String $channel 栏目
*/
private static function getAds($channel=''){
$AD_Config = self::$_config;
if($AD_Config!=null){
self::$_ads = isset($AD_Config[$channel])? $AD_Config[$channel] : $AD_Config['default'];
}
}
/** zoneid base64_encode 处理 */
private static function genZoneId(){
// 同步加载广告不需要处理zoneid
if(!self::$_async){
return ;
}
$ads = self::$_ads;
for($i=0,$len=count($ads); $i<$len; $i++){
if(isset($ads[$i]['zoneId'])){
$ads[$i]['zoneId'] = base64_encode('var zoneid='.$ads[$i]['zoneId'].';');
}
}
self::$_ads = $ads;
}
/** 生成广告html */
private static function genHtml(){
$ads = self::$_ads;
$html = array();
if(self::$_jsclass!=null && $ads){
array_push($html, '');
// 同步需要预先加载
if(!self::$_async){
foreach($ads as $ad){
array_push($html, '');
array_push($html, '');
array_push($html, '');
}
}
array_push($html, '');
}
return implode("\r\n", $html);
}
/** 判断是否需要强制同步加载的浏览器 */
private static function checkBrowser(){
$user_agent = $_SERVER['HTTP_USER_AGENT'];
if(strstr($user_agent,'MSIE')!=''){
return false;
}
return true;
}
} // class end
?>
ADConfig.php文件如下：
<?php
/** 广告配置文件 **/
return array(
'case_openx' => array(
array(
'type' => 'openx',
'domId' => 'ad_728x90',
'zoneId' => 452
),
array(
'type' => 'openx',
'domId' => 'ad_300x250',
'zoneId' => 449
),
array(
'type' => 'openx',
'domId' => 'ad_l2_300x250',
'zoneId' => 394
),
),
'case_url' => array(
array(
'type' => 'url',
'domId' => 'ad_728x90',
'url' => 'adurl.php?zoneid=452'
),
array(
'type' => 'url',
'domId' => 'ad_300x250',
'url' => 'adurl.php?zoneid=449'
),
array(
'type' => 'url',
'domId' => 'ad_l2_300x250',
'url' => 'adurl.php?zoneid=394'
)
),
'case_sync_openx' => array(
array(
'type' => 'openx',
'domId' => 'ad_728x90',
'zoneId' => 452
),
array(
'type' => 'openx',
'domId' => 'ad_300x250',
'zoneId' => 449
),
array(
'type' => 'openx',
'domId' => 'ad_l2_300x250',
'zoneId' => 394
),
),
'default' => array(
array(
'type' => 'openx',
'domId' => 'ad_728x90',
'zoneId' => 452
),
array(
'type' => 'openx',
'domId' => 'ad_300x250',
'zoneId' => 449
),
array(
'type' => 'openx',
'domId' => 'ad_l2_300x250',
'zoneId' => 394
),
),
);
?>
ADLoader.js文件如下：
/** 异步加载广告
* Date: 2013-08-04
* Author: fdipzone
* Ver: 1.0
*/
var ADLoader = (function(){
var _ads = [], // 广告集合
_step = 300, // 广告加载间隔
_async = true, // 是否异步加载
_loaded = 0; // 已经加载的广告数
/** loadAd 循环加载广告
* @param int c 第几个广告
*/
function loadAD(c){
if(_loaded>=_ads.length){
return ;
}
if($('#'+_ads[c].domId).length>0){ // 判断dom是否存在
if(_async){ // 异步执行
crapLoader.loadScript(getScript(_ads[c]), _ads[c].domId, {
success: function(){
completeAd();
}
});
}else{ // 将同步加载的广告显示
var ad_container = $('#'+_ads[c].domId+'_container');
ad_container.find('embed').attr('wmode','transparent').end().find('object').each(function(k, v){
v.wmode = 'transparent'; // 将flash变透明
});
$('#'+_ads[c].domId)[0].appendChild(ad_container[0]);
ad_container.show();
completeAd();
}
}else{ // dom不存在
completeAd();
}
}
/** 加载完广告后处理 */
function completeAd(){
_loaded ++;
setTimeout(function(){
loadAD(_loaded);
}, _step);
}
/** 获取广告
* @param Array ad 广告参数
*/
function getScript(ad){
var ret = null;
switch(ad.type){
case 'openx': // openx code ad
ret = 'data:text/javascript;base64,' + ad.zoneId + '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';
break;
case 'url': // url ad
ret = ad.url;
break;
}
return ret;
}
/** 同步加载广告
* @param Array ad 广告参数
*/
function writeAd(ad){
switch(ad.type){
case 'openx':
var m3_u = (location.protocol=='https:'?'https://ads.nmg.com.hk/www/delivery/ajs.php':'http://ads.nmg.com.hk/www/delivery/ajs.php');
var m3_r = Math.floor(Math.random()*99999999999);
if (!document.MAX_used) document.MAX_used = ',';
document.write ("<\/scr"+"ipt>");
break;
case 'url':
document.write ('');
break;
}
}
obj = {
/** 加载广告
* @param Array ads 广告集合
* @param int step 广告加载间隔
* @param boolean async true:异步加载 false:同步加载
*/
load: function(ads, step, async){
_ads = ads;
if(typeof(step)!='undefined'){
_step = step;
}
if(typeof(async)!='undefined'){
_async = async;
}
loadAD(_loaded);
},
/** 预加载广告 */
preload: function(ad){
if($('#'+ad.domId).length>0){ // 判断dom是否存在
writeAd(ad);
}
}
}
return obj;
}());
/* crapLoader */
var crapLoader = (function() {
var isHijacked = false,
queue = [],
inputBuffer = [],
writeBuffer = {},
loading = 0,
elementCache = {},
returnedElements = [],
splitScriptsRegex = /(
<?php
function showAD($channel='', $step='', $async=''){
include('ADLoader.class.php');
$ad_config = include('ADConfig.php');
ADLoader::setConfig($ad_config, 'ADLoader.js');
return ADLoader::load($channel, $step, $async);
}
echo showAD('case_openx'); // 异步加载
//echo showAD('case_url'); // url方式异步加载
//echo showAD('case_sync_openx', 300, false); // 同步加载
?>