there's an array A,which has a variable number of values. I want to convert values of array A to an index of array B.
Language: PHP
Example:
//array A
$a={'a','b','c','d'};
//converted to an index of array B
$b['a']['b']['c']['d']='somevalue';
The problem is that the number of values of array A is flexible.
Is there a way out? Thanks.
$a=['a','b','c','d'];
$b = [];
$c = &$b;
foreach($a as $key) {
$c[$key] = $c;
$c = &$c[$key];
}
$c = 'somevalue';
unset($c);
var_dump($b);
Thanks to @Mark Baker. I modified some code and it works.
$a = array('a', 'b', 'c', 'd');
$b = array();
rsort($a);
$i = 0;
foreach ($a as $v)
{
if ($i++ > 0)
{
$c = array();
$c[$v] = $b;
$b = $c;
}
else
{
$b[$v] = 111;
}
}
var_dump($b);
Result,what I want exactly :
array(1) {
["a"]=>
array(1) {
["b"]=>
array(1) {
["c"]=>
array(1) {
["d"]=>
int(111)
}
}
}
}