Get unique values from array with specific filtering

Question

Sorry about the pretty bad title, I'm not a native speaker and wasn't sure how to phrase this.

Here is my problem:

I have a very long array with this format:

$array = array(
    'key1.value1' => '1',
    'key1.value2' => '0',
    'key1.value3' => '1',
    'key2.value1' => '0',
    'key2.value2' => '0',
    'key3.value1' => '1'
);

From this array, I would like to get another one with this format:

$newArray = array(
   'key1' => array(
        'value1' => '1',
        'value2' => '0',
        'value3' => '1'
    ),
    'key2' => array(
        'value1' => '0',
        'value2' => '0'
    ),
    'key3' => array(
        'value1' => '1'
    )
);

I have tried a few methods but really didn't find any solution that isn't extremely long, so I wondered if I could any tips/tricks to get this done easily!

Thanks a lot!

you can try to use in_array(string, $array);

Laurence
– Laurence

2017-02-03 11:08:22 +00:00
Commented Feb 3, 2017 at 11:08 — Laurence
– Laurence, Commented Feb 3, 2017 at 11:08

JustBaron · Accepted Answer · 2017-02-03 11:08:45Z

1

$array = array(
    'key1.value1' => '1',
    'key1.value2' => '0',
    'key1.value3' => '1',
    'key2.value1' => '0',
    'key2.value2' => '0',
    'key3.value1' => '1'
);

$Results = array();
foreach($array as $key=>$value){
    $KeyValue = explode(".",$key);
    if(!isset($Results[$KeyValue[0]])){
        $Results[$KeyValue[0]] = array();
    }
    $Results[$KeyValue[0]][end($KeyValue)] = $value;
}
print_r($Results);

answered Feb 3, 2017 at 11:08

JustBaron

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3 Comments

Álvaro Touzón Over a year ago

i've see that only create a 1 second level?. Could be?

JustBaron Over a year ago

@Álvaro Touzón this should give the chap the format he needs.

Fawak Over a year ago

Works perfectly! Thanks a lot!

RomanPerekhrest · Accepted Answer · 2017-02-03 11:17:49Z

0

Short solution using explode() function:

$transformed = [];
foreach ($array as $k => $v) {
    $pair = explode('.', $k);
    $transformed[$pair[0]][$pair[1]] = $v;
}

print_r($transformed);

The output:

Array
(
    [key1] => Array
        (
            [value1] => 1
            [value2] => 0
            [value3] => 1
        )

    [key2] => Array
        (
            [value1] => 0
            [value2] => 0
        )

    [key3] => Array
        (
            [value1] => 1
        )
)

answered Feb 3, 2017 at 11:17

RomanPerekhrest

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Comments

Álvaro Touzón · Accepted Answer · 2017-02-03 19:07:45Z

0

try this:

$generate = [];
foreach($array  as $key=>$val ){
list($first, $second) = split('.', $key);
if(!isset($genrate[$first]){
$genrate[$first] = [];
if(!$genrate[$first][$second]){
$genrate[$first][$second]= [];
}
}
$genrate[$first][$second] = $val;
}

Expect it helps. Tks

edited Feb 3, 2017 at 19:07

answered Feb 3, 2017 at 11:10

Álvaro Touzón

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1 Comment

JustBaron Over a year ago

$val or $value needs to change

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