<?php
foreach($final as $key => $val) {
if (is_array($val) && count($val) == 1) $final[$key] = $val[0];
if (is_array($val))
foreach ($val as $skey=>$sval) {
if (is_array($sval) && count($sval) == 1) $final[$key][$skey] = $sval[0];
if (is_array($sval))
foreach($sval as $sskey=>$ssval) {
if (is_array($ssval) && count($ssval) == 1) $final[$key][$skey][$sskey] = $ssval[0];
if (is_array($ssval))
foreach($ssval as $ssskey=>$sssval) {
if (is_array($sssval) && count($sssval) == 1) $final[$key][$skey][$sskey][$ssskey] = $sssval[0];
}
}
}
}
?>
Refactorings
No refactoring yet !
bob-the-destroyer.myopenid.com
September 16, 2010, September 16, 2010 05:29, permalink
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I think this "recursive_extract()" function should do it. As many dimensions as your PHP setup can handle. This function returns a numeric key array of all isolated arrays found. I'm not sure what you meant by returning it as a string though. Do "implode()" on the returned array...?
<?php
function recursive_extract(array $array) {
static $return_array = array();
foreach ($array as $sub_array) {
if (is_array($sub_array)) {
if (count($sub_array) === 1) {
$return_array[] = current($sub_array);
return;
}
$return = recursive_extract($sub_array);
if (count($return) === 1) {
$return_array[] = current($return);
return;
}
}
}
return $return_array;
}
// testing this new recursive_extract() function...
$test_array = array(
array(
array(1,2,3),
array(
array(2,3),
array(346,23),
array(
'test' => 2
)
),
array(62436)
),
array(
array(6345,3462),
array("x")
)
);
var_dump(recursive_extract($test_array));
/* dumps this text...
array(3) {
[0]=>
int(2)
[1]=>
int(62436)
[2]=>
string(1) "x"
}
*/
?>
bob-the-destroyer.myopenid.com
September 16, 2010, September 16, 2010 06:14, permalink
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Woops! Line 19 in my refactoring above should be "$final_array = $return_array; $return_array = array(); return $final_array;". Basically, you need to wipe the functions "memory". Otherwise, whenever you call recursive_extract() again, it will still carry values from the first array you gave it.
Needs to be an edit feature.
I tried using array_walk to search through a multidimensional array (5 levels deep) and find any arrays that contain a single item, and if so, convert the array to a string, but it didn't work, can someone re-factor the code, possibly give me a solution that can be as many levels deep and still turn single itemed arrays into a string?