CODEWITHSUNDEEP
phparraysreplace
Tarek.hms
Tarek.hms

Reputation: 1283

PHP arrays replacement

$data = Array ( ['key1'] => 1 , ['key2'] => 20 , ['key3'] => 11)
$key1 = Array (1 => "a" , 2 => "b")
$key2 = Array (1 => "a" , .... 20 => "y") 
$key3 = Array (1 => "a" , .... 11 => "n")

what is the easiest way to replace all values in $data array to return:

$data['key1'] = $key1[$data['key1']]

instead of doing that one by one i.e:

$data['key1'] = $key1[$data['key1']]
$data['key2'] = $key2[$data['key2']]...

Upvotes: 2

Views: 98

Answers (4)

jon_darkstar
jon_darkstar

Reputation: 16768

I think you are looking for this:

foreach($data as $k => &$v)
{
    if($$k)
    {
        $t = $$k;
        if($t[$v]) $v = $t[$v];
    }
}

print_r($data);

but I'd suggest asking yourself some bigger questions about the intent here

Upvotes: 2

bukart
bukart

Reputation: 4906

i'd prefer this solution

array_walk(
    $data,
    function(&$a, $b) {
        $a = $$a[$b];
    }
);

Upvotes: 1

andy
andy

Reputation: 2399

The question is quite hard to understand, but I think what you're trying to do is use $data to pull data from the other arrays. If that's the case, this should work:

$data = array('key1' => 1, 'key2' => 2, 'key3' => 0);
$key1 = array(1,2,3,4,5);
$key2 = array(6,7,8,9,10);
$key3 = array(11,12,13,14);

foreach(array_keys($data) as $key) {
  if(isset($$key)) {
    $target = $$key;
    $value = $target[$data[$key]];

    $data[$key] = $value;
  }
}

var_dump($data); #=> [key1 => 2, key2 => 8, key3 => 11]

Upvotes: 1

quinqui
quinqui

Reputation: 101

You could try using PHP's variables variables, something like this:

foreach ($data as $mkey => $mval)
{
 $data[$mkey] = $$mkey[$data[$mkey]];
}

Upvotes: 0

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