$set = array('a','b','c','d');
该如何把数组组合,输出的结果是
a
b
c
b
ab
ac
ad
bc
bd
------解决方案--------------------
$set = array('a','b','c','d');
$res = $set;
for($i=0, $p=1; $i a
[1] => b
[2] => c
[3] => d
[4] => ab
[5] => bc
[6] => cd
)
------解决方案--------------------
引用:$set = array('a','b','c','d');
$res = $set;
for($i=0, $p=1; $i a
[1] => b
[2] => c
[3] => d
[4] => ab
[5] => bc
[6] => cd
)
版主这个输出的和楼主的不一样啊，我没太搞懂楼主到底是要怎么组合输出这个数组,我的解决方法如下，这里不用输出cd就可以了 string 'b' (length=1)
2 => string 'c' (length=1)
3 => string 'd' (length=1)
4 => string 'ab' (length=2)
5 => string 'ac' (length=2)
6 => string 'ad' (length=2)
7 => string 'bc' (length=2)
8 => string 'bd' (length=2)
9 => string 'cd' (length=2)
------解决方案--------------------
$set = array('a','b','c','d');
$arr=array();
for($j=0;$j$v){
for($i=$k;$i a
[1] => b
[2] => c
[3] => d
[4] => ab
[5] => ac
[6] => ad
[7] => bc
[8] => bd
[9] => cd
)