voku\helper\UTF8::html_entity_decode()

Complexity

Conditions	15
Paths	15

Size

Total Lines	75
Code Lines	43

Duplication

Lines	9
Ratio	12 %

Code Coverage

Tests	40
CRAP Score	15.1689

Importance

Changes

0

<?php
  public static function html_entity_decode($str, $flags = null, $encoding = 'UTF-8')
  {
    // init
    $str = (string)$str;

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

    if (!isset($str[3])) { // examples: &; || &x;
      return $str;
    }

    if (
        strpos($str, '&') === false
        ||
        (
            strpos($str, '&#') === false
            &&
            strpos($str, ';') === false
        )
    ) {
      return $str;
    }

    if ($encoding !== 'UTF-8') {
      $encoding = self::normalize_encoding($encoding, 'UTF-8');
    }

    if ($flags === null) {
      if (Bootup::is_php('5.4') === true) {
        $flags = ENT_QUOTES | ENT_HTML5;
      } else {
        $flags = ENT_QUOTES;
      }
    }

    if (
        $encoding !== 'UTF-8'
        &&
        $encoding !== 'WINDOWS-1252'
        &&
        self::$SUPPORT['mbstring'] === false
    ) {
      trigger_error('UTF8::html_entity_decode() without mbstring cannot handle "' . $encoding . '" encoding', E_USER_WARNING);
    }

    do {
      $str_compare = $str;

      $str = preg_replace_callback(
          "/&#\d{2,6};/",
          function ($matches) use ($encoding) {
            $returnTmp = \mb_convert_encoding($matches[0], $encoding, 'HTML-ENTITIES');

            if ($returnTmp !== '"' && $returnTmp !== "'") {
              return $returnTmp;
            }

            return $matches[0];
          },
          $str
      );

      // decode numeric & UTF16 two byte entities
      $str = html_entity_decode(
          preg_replace('/(&#(?:x0*[0-9a-f]{2,6}(?![0-9a-f;])|(?:0*\d{2,6}(?![0-9;]))))/iS', '$1;', $str),
          $flags,
          $encoding
      );

    } while ($str_compare !== $str);

    return $str;
  }