<?php
$pattern_1 = '/(?<=loki:evaluatedByUser\s)(.+)/';
$pattern_2 = '/\d/';
$string = 'loki:evaluatedByUser [ loki:note "5", loki:evaluator lokiuser:ala ] , [ loki:note "3"; loki:evaluator lokiuser:kasia ] , [ loki:note "5", loki:evaluator lokiuser:ala ]';
preg_match($pattern_1, $string, $matches);
preg_match_all($pattern_2,
$matches[0],
$specific);
print_r($specific);
?>