voku\helper\UTF8::split()

Complexity

Conditions	23
Paths	41

Size

Total Lines	73
Code Lines	38

Duplication

Lines	12
Ratio	16.44 %

Code Coverage

Tests	52
CRAP Score	23

Importance

Changes	6
Bugs	1	Features	4

<?php
  public static function split($str, $length = 1, $cleanUtf8 = false)
  {
    $str = (string)$str;

    if (!isset($str[0])) {
      return array();
    }

    // init
    $str = (string)$str;
    $ret = array();

    if (!isset(self::$support['already_checked_via_portable_utf8'])) {
      self::checkForSupport();
    }

    if (self::$support['pcre_utf8'] === true) {

      if ($cleanUtf8 === true) {
        $str = self::clean($str);
      }

      preg_match_all('/./us', $str, $retArray);
      if (isset($retArray[0])) {
        $ret = $retArray[0];
      }
      unset($retArray);

    } else {

      // fallback

      $len = strlen($str);

      /** @noinspection ForeachInvariantsInspection */
      for ($i = 0; $i < $len; $i++) {
        if (($str[$i] & "\x80") === "\x00") {
          $ret[] = $str[$i];
        } elseif ((($str[$i] & "\xE0") === "\xC0") && isset($str[$i + 1])) {
          if (($str[$i + 1] & "\xC0") === "\x80") {
            $ret[] = $str[$i] . $str[$i + 1];

            $i++;
          }
        } elseif ((($str[$i] & "\xF0") === "\xE0") && isset($str[$i + 2])) {

This code seems to be duplicated across your project.

          if ((($str[$i + 1] & "\xC0") === "\x80") && (($str[$i + 2] & "\xC0") === "\x80")) {
            $ret[] = $str[$i] . $str[$i + 1] . $str[$i + 2];

            $i += 2;
          }
        } elseif ((($str[$i] & "\xF8") === "\xF0") && isset($str[$i + 3])) {
          if ((($str[$i + 1] & "\xC0") === "\x80") && (($str[$i + 2] & "\xC0") === "\x80") && (($str[$i + 3] & "\xC0") === "\x80")) {

This code seems to be duplicated across your project.

            $ret[] = $str[$i] . $str[$i + 1] . $str[$i + 2] . $str[$i + 3];

            $i += 3;
          }
        }
      }
    }

    if ($length > 1) {
      $ret = array_chunk($ret, $length);

      $ret = array_map('implode', $ret);
    }

    /** @noinspection OffsetOperationsInspection */
    if (isset($ret[0]) && $ret[0] === '') {
      return array();
    }

    return $ret;
  }