I have an array like:
$indexes = array('a', 'b', 'c');
And a would like to convert it to an multidimensional array like:
$array['a']['b']['c']
The index quantity is dynamic, i can have 2, 3 or more.
I need to do this convertion and then assign a value to this index. Example:
$array['a']['b']['c'] = 'My value';
I tried a logic using array_keys() and array_flip(), but it doesn't work. Any help will be welcome.
USE THIS
$array = array('a', 'b', 'c');
$arr = array();
$ref = &$arr;
foreach ($array as $key) {
$ref[$key] = array();
$ref = &$ref[$key];
}
$ref = $key;
$array = $arr;
same thought :-)try it with an iteration i'd say:
<?php
$array = array('a', 'b', 'c');
$target = array();
$current = &$target;
foreach ($array as $k){
$current[$k] = array();
$current = &$current[$k];
}
$current = "Hello World";
echo "<pre>";
print_r($target);
echo "</pre>";
?>
Output:
Array
(
[a] => Array
(
[b] => Array
(
[c] => Hello World
)
)
)
A recursive approach
function multiDimArray(array $keys, $value) {
if (count($keys) == 0) {
return $value;
} else {
$key = array_shift($keys);
return array( $key => multiDimArray($keys, $value));
}
}
$multiDimArray = multiDimArray(array('a','b','c','d'), "Hello World!");
I got an interesting solution based on an answer posted by @JasonWoof, it is simple and elegant.
$indexes = array('a', 'b', 'c');
$value = 'My value';
while ($indexes) {
$value = array(array_pop($indexes) => $value);
}
var_dump($value);
Shows:
array(1) {
["a"]=>
array(1) {
["b"]=>
array(1) {
["c"]=>
string(8) "My value"
}
}
}
