- array_merge: documentation ( source)
- var_export: documentation ( source)
<?php
function array_flatten($array) {
$return = array();
foreach ($array as $key => $value) {
if (is_array($value)){
$return = array_merge($return, array_flatten($value));
} else {
$return[$key] = $value;
}
}
return $return;
}
var_export(array_flatten([['a', 'b'], 'c']));