在foreach循环中插入随机块

问题描述：

I have posts that I am displaying through a foreach loop. Within this I would like to throw in some advertising blocks.  

I have posts and advertising blocks working with no issues. The posts are coming from an array and the advertising blocks I am manually inserted.

The hiccup I am seeing is how I am throwing in these ads into the foreach loop. I want it to add them but not interrupt the posts themselves and that is what I am experiencing.  

I have 3 advertising blocks and 12 posts per page. When the page loads there should be a total of 15 blocks and instead I am getting 9. Those ads also not static - I have them coming in to be placed anywhere within those 15 blocks in total.

 Here is quick run down of the script I am using (a readers digest version).  

$i = 0;
foreach ($posts AS $post) { 
   $i++; 
   if ($adblock == $i) {
        //insert advertisement block
   }
   else if ($adblock == $i) {
        //insert advertisement block
   }
   else if ($adblock == $i) {
        //insert advertisement block
   }
   else {
        //insert post block
   } 
}

我有通过foreach code>循环显示的帖子。在此我想投入一些广告块。 p>

我的帖子和广告块没有问题。这些帖子来自一个阵列和我手动插入的广告块。 p>


我看到的打嗝是如何将这些广告投入 foreach  code> 环。 我希望它添加它们但不会中断帖子本身，这就是我所经历的。   p> 
 
 
我每页有3个广告块和12个帖子。 当页面加载时，应该总共有15个块，而我得到9.这些广告也不是静态的 - 我让它们进入总共15个块中的任何位置。 p> 
 
  
 
 

  $ i = 0; 
foreach（$ posts AS $ post）{
 $ i ++;  
 if（$ adblock == $ i）{
 //插入广告块
} 
否则if（$ adblock == $ i）{
 //插入广告块
} 
否则if（  $ adblock == $ i）{
 //插入广告块
} 
其他{
 //插入帖子块
} 
} 
   code>  pre> 
  div  >

答

Without too much complexity, if the number of posts/adv per page is static, you can use a simple math to place your adv like this:

$i=0;
foreach($posts as $post){
  $i++; 

  if($i%3==0) { /* insert additional adv block */ }

  /* insert post block at anytime*/
}

you can change the ($i%3==0) to any other number; with 3 you will get an adv every 3 posts. need more adv, make it ($i%2==0), need less, make it ($i%4==0), etc.

在foreach循环中插入随机块

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