$a = M('a');//从数据库A表中读取数据（数组）$b = M('b');//从数据库A表中读取数据（数组）foreach ($a as $k=>$v){ echo $v;}foreach ($b as $kk=>$vv){ echo $vv;}//注释：代码只是为了更好的说明//读取3条$v后读取1条$vv再循环读取3条$v,1条$vv，一直循环下去，直到$v循环输出完毕，停止输出 $a,$b都是数组，循环是为了在前台显示，每显示3条a表数据，插入一条广告（注：广告在数据库表b中）数据显示不能重复。请问如何实现？
回复讨论(解决方案)
$a = array(1,2,3,4,5,6,7,8,9,10,11,12,13);$b = array('广告1','广告2','广告3');$newa = array_chunk($a,3);foreach($b as $k=>$v){ array_push($newa[$k],$v);}$data = array();foreach($newa as $v){ $data = array_merge($data,$v);}print_r($data);/*Array( [0] => 1 [1] => 2 [2] => 3 [3] => 广告1 [4] => 4 [5] => 5 [6] => 6 [7] => 广告2 [8] => 7 [9] => 8 [10] => 9 [11] => 广告3 [12] => 10 [13] => 11 [14] => 12 [15] => 13)*/
$a = array(1,2,3,4,5,6,7,8,9,10,11,12,13);$b = array('广告1','广告2','广告3');$newa = array_chunk($a,3);foreach($b as $k=>$v){ array_push($newa[$k],$v);}$data = array();foreach($newa as $v){ $data = array_merge($data,$v);}print_r($data);/*Array( [0] => 1 [1] => 2 [2] => 3 [3] => 广告1 [4] => 4 [5] => 5 [6] => 6 [7] => 广告2 [8] => 7 [9] => 8 [10] => 9 [11] => 广告3 [12] => 10 [13] => 11 [14] => 12 [15] => 13)*/ 很好的思路。非常值得借鉴！
$a = array(1,2,3,4,5,6,7,8,9,10,11,12,13);$b = array('广告1','广告2','广告3');$g = 0;foreach($a as $k=>$v) { echo $v . '
'; if($k && $k % 3 == 0) echo @$b[$g++] . '
';} 1234广告1567广告28910广告3111213
$a = array(1,2,3,4,5,6,7,8,9,10,11,12,13);$b = array('广告1','广告2','广告3');$g = 0;foreach($a as $k=>$v) { echo $v . '
'; if($k && $k % 3 == 0) echo @$b[$g++] . '
';} 1234广告1567广告28910广告3111213
如果$b的key不是数字，这种方法不是不可行了吗？因为$a和$b都是从数据库取出来的，所以他们实际上是关联数组。
$a = array(1,2,3,4,5,6,7,8,9,10,11,12,13);$b = array('广告1','广告2','广告3', '', '');$t = array_map('array_merge', array_chunk($a, 3), array_chunk($b, 1));print_r($t); Array( [0] => Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 广告1 ) [1] => Array ( [0] => 4 [1] => 5 [2] => 6 [3] => 广告2 ) [2] => Array ( [0] => 7 [1] => 8 [2] => 9 [3] => 广告3 ) [3] => Array ( [0] => 10 [1] => 11 [2] => 12 [3] => ) [4] => Array ( [0] => 13 [1] => ))
不是下标数组，你可以另设一个计数器
也可以用 array_values 将其编程下标数组