Splitting array by comparing keys in PHP - php

Question

I have an array like this;
Array
(
[database1.table1.fieldname] => "test"
[database1.table1.fieldname1] => "test1"
[database2.table2.fieldname] => "test2"
)
Here for the first two values the database name and table name are the same. Fieldname is not so important here. For the third value the database name and table name are different. What I want to achieve is that I want to split this array in to seperate arrays by comparing the database name and table name. I need to achieve something like this;
Array
(
[database1.table1.fieldname] => "test"
[database1.table1.fieldname1] => "test1"
)
Array
(
[database2.table2.fieldname] => "test2"
)
Is it possible to do something like this?.

Answer 1

Try like
foreach($my_arr as $key=>$value) {
$new_key = explode('.',$key);
if($new_key[0] == "datebase1" && $new_key[1] == "table1") {
$arr1[$key] = $value;
} elseif ($new_key[0] == "datebase2" && $new_key[1] == "table2") {
$arr2[$key] = $value;
}
}
Or you can try like
foreach($my_arr as $key=>$value) {
$new_key = explode('.',$key);
$new_arr[$new_key[0]][$new_key[1]][] = array($key=>$value);
}
print_r($new_arr);
Output :
Array
(
[database1] => Array
(
[table1] => Array
(
[0] => Array
(
[database1.table1.fieldname] => test
)
[1] => Array
(
[database1.table1.fieldname1] => test1
)
)
)
[database2] => Array
(
[table2] => Array
(
[0] => Array
(
[database2.table2.fieldname] => test3
)
)
)
)

Answer 2

Here it is. Take it.
function splitDatabaseArray($array)
{
ksort($array);
$return = array();
$last_database_table = array();
foreach ($array as $index => $value)
{
$database_table = array();
list($database_table[0], $database_table[1]) = explode('.', $index);
if ($last_database_table != $database_table)
$row = &$return[];
$last_database_table = $database_table;
$row[$index] = $value;
}
return $return;
}
$array = array
(
'database1.table1.fieldname' => "test",
'database1.table1.fieldname1' => "test1",
'database2.table2.fieldname' => "test2");
var_dump(splitDatabaseArray($array));
http://3v4l.org/TC542