Random ad display calling code in php_PHP tutorial-PHP Tutorial-php.cn

Random ad display calling code in php_PHP tutorial

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Release： 2016-07-13 16:57:12

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This article will introduce you to the method of using txt and php to realize random advertising display and calling. The principle is very simple. We put the advertising file into the txt file. When a user visits, we load the txt file and then come out randomly.

代码如下

复制代码

#########随机广告显示##########
function myads(){
$dir="ads"; #设置存放记录的目录
//$dir="ads"; #设置存放记录的目录
$ads="$dir/ads.txt"; #设置广告代码文件
$log ="$dir/ads.log"; #设置ip记录文件

$ads_lines=file($ads);
$lines=count($ads_lines);#文件总行数

####读出广告总数$ads_count和显示次数到数组$display_array########
$ads_count=0;
$display_count=0;
for ($i=0;$i<$lines;$i++){
if((!strcmp(substr($ads_lines[$i],0,7),"display"))){
$ads_count+=1;
$display_array[$ads_count]=substr($ads_lines[$i],8);
$display_count+=$display_array[$ads_count];
}
}
####决定随机显示序号$display_rand#####
srand((double)microtime()*1000000);
$display_rand = rand(1,$display_count);

###决定广告序号$ads_num######
$pricount=0;
$ads_num=1;
for($i=1; $i<=$ads_count; $i++) {
$pricount += $display_array[$i];
if ($display_rand<=$pricount) {$ads_num=$i;break;}
}

#####播放广告########
$num=0;
$flag=0;

for($i=0;$i<$lines;$i++){
if((!strcmp(substr($ads_lines[$i],0,7),"display"))){$num++;}
if(($num==$ads_num)and($flag==0)){$flag=1;continue;}
if(($flag==1)and strcmp($ads_lines[$i][0],"#")){echo $ads_lines[$i];continue;}
if(($flag==1)and(!(strcmp($ads_lines[$i][0],"#")))){break;}
}
####纪录广告显示次数#########
$fp=fopen($log,"a");
fputs($fp,date( "Y-m-d H:i:s " ).getenv("REMOTE_ADDR")."==>".$ads_num."n");
fclose($fp);
}
?>

Advertising code file ads.txt

############################### display=10

The code is as follows

代码如下	复制代码
########每个广告代码之间用'#'隔开,display为显示加权数,越大显示次数越多################ ################################ display=10 ################################ display=10

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########Each ad code is separated by '#', display is the display weighted number, the larger the number, the more times it will be displayed ################ ###############################

display=10