class PHPUnit_Util_String in Zircon Profile 8

String helpers.

@since Class available since Release 3.6.0

Hierarchy

• class \PHPUnit_Util_String

File

vendor/phpunit/phpunit/src/Util/String.php, line 16

class PHPUnit_Util_String {

  /**
   * Converts a string to UTF-8 encoding.
   *
   * @param  string $string
   * @return string
   */
  public static function convertToUtf8($string) {
    if (!self::isUtf8($string)) {
      if (function_exists('mb_convert_encoding')) {
        $string = mb_convert_encoding($string, 'UTF-8');
      }
      else {
        $string = utf8_encode($string);
      }
    }
    return $string;
  }

  /**
   * Checks a string for UTF-8 encoding.
   *
   * @param  string $string
   * @return bool
   */
  protected static function isUtf8($string) {
    $length = strlen($string);
    for ($i = 0; $i < $length; $i++) {
      if (ord($string[$i]) < 0x80) {
        $n = 0;
      }
      elseif ((ord($string[$i]) & 0xe0) == 0xc0) {
        $n = 1;
      }
      elseif ((ord($string[$i]) & 0xf0) == 0xe0) {
        $n = 2;
      }
      elseif ((ord($string[$i]) & 0xf0) == 0xf0) {
        $n = 3;
      }
      else {
        return false;
      }
      for ($j = 0; $j < $n; $j++) {
        if (++$i == $length || (ord($string[$i]) & 0xc0) != 0x80) {
          return false;
        }
      }
    }
    return true;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
PHPUnit_Util_String::convertToUtf8	public static	function	Converts a string to UTF-8 encoding.
PHPUnit_Util_String::isUtf8	protected static	function	Checks a string for UTF-8 encoding.