search key & value in multidimensional array in PHP

function searcharr($array, $key, $value)
{
$results = array();

if (is_array($array)) {
if (isset($arrayvariation[$key]) && $array[$key] == $value) {
$results[] = $arrayvariation;
}

foreach ($array as $subarray) {
$results = array_merge($results, $this->searcharr($subarray, $key, $value));
}
}

return $results;
}

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