Array ( [59] =>aa [17] => bb [18] =>cc [69] => dd [21] =>ee [22] => ss [23] => Array ( [0] => 1a[1] =>2a[2] => 3a [3] =>4a [4] => 55 ) [24] =>vv [26] => va [43] => Array ( [0] => 道 [1] =>向 [2] => 圾 [3] => 灯 [4] => 速 [5] => 灯 [6] => 则 ) [53] => 元 [54] => 995 )[1]=>Array ( [59] =>aa [17] => bb [18] =>cc [69] => dd [21] =>ee [22] => ss [23] => Array ( [0] => 1a[1] =>2a[2] => 3a [3] =>4a [4] => 55 ) [24] =>vv [26] => va [43] => Array ( [0] => 道 [1] =>向 [2] => 圾 [3] => 灯 [4] => 速 [5] => 灯 [6] => 则 ) [53] => 元 [54] => 995 )
如何将最后一维合并？
是用foreach遍历时合并吗？如果数据多了会不会卡住？
回复讨论(解决方案)
你所谓的合并是什么意思呢？哪个合并到哪个？
你所谓的合并是什么意思呢？哪个合并到哪个？
Array ( [59] =>aa [17] => bb [18] =>cc [69] => dd [21] =>ee [22] => ss [23] => Array ( [0] => 1a[1] =>2a[2] => 3a [3] =>4a [4] => 55 ) [24] =>vv [26] => va [43] => Array ( [0] => 道 [1] =>向 [2] => 圾 [3] => 灯 [4] => 速 [5] => 灯 [6] => 则 ) [53] => 元 [54] => 995 )[1]=>Array ( [59] =>aa [17] => bb [18] =>cc [69] => dd [21] =>ee [22] => ss [23] => Array ( [0] => 1a[1] =>2a[2] => 3a [3] =>4a [4] => 55 ) [24] =>vv [26] => va [43] => Array ( [0] => 道 [1] =>向 [2] => 圾 [3] => 灯 [4] => 速 [5] => 灯 [6] => 则 ) [53] => 元 [54] => 995 )
合并成例如[23]=>2a,3a,4a,55..........
foreach($arr as $k=>$v){ if(is_array($v)) $arr[$k] = implode(',', $v);}print_r($arr);
foreach($arr as $k=>$v){ if(is_array($v)) $arr[$k] = implode(',', $v);}print_r($arr); 如果是三维数组合并第三维是不是这样
foreach($arr as $k=>$v){foeach($v as $key=>$val){ if(is_array($val)) $v[$key] = implode(',', $val);}} 不一定，需判断 $v 是数组后，方可进入 foeach($v as ...
$v[$key] = implode(',', $val);
改为：
$arr[$k][$key] = implode(',', $val);
且你需要判断一下$v 是数组后才能遍历$v ， 否则会报错。
不一定，需判断 $v 是数组后，方可进入 foeach($v as ...
正如你所说我失败了
array(
[0]=>
array([8]=>aa[9]=> array([77]=>bb[88]=>cc)合并成:bb,cc[10]=>44
)
.................
)
....................
最终实现转成二维数组。。。然后导出excel
最终数组练的让我头痛，还没完全撑握
应该这样写
$a = array( 0 => array( 8 => 'aa', 9 => array( 77 => 'bb', 88 => 'cc', ), 10 => 44, ),);$a = dimension_reduction($a); //执行一次降一次维print_r($a);$a = dimension_reduction($a);print_r($a);//降维function dimension_reduction($ar) { $flag = 1; foreach($ar as $k=>$v) { if(is_array($v)) { $flag = 0; $ar[$k] = dimension_reduction($v); } } if($flag) return join(',', $ar); return $ar;}Array
(
[0] => Array
(
[8] => aa
[9] => bb,cc
[10] => 44
)
)
Array
(
[0] => aa,bb,cc,44
)
