li-dance-backoffice/backend/utils/tools.php

<?php

function umlaute($string) {
   $string = str_replace("ä", "&auml;", $string);
   $string = str_replace("ü", "&uuml;", $string);
   $string = str_replace("ö", "&ouml;", $string);
   $string = str_replace("Ä", "&Auml;", $string);
   $string = str_replace("Ü", "&Uuml;", $string);
   $string = str_replace("Ö", "&Ouml;", $string);
   
   return $string;
}

function umlaute_as_e($string) {
   $string = str_replace("ä", "ae", $string);
   $string = str_replace("ü", "ue", $string);
   $string = str_replace("ö", "oe", $string);
   $string = str_replace("Ä", "Ae", $string);
   $string = str_replace("Ü", "Ue", $string);
   $string = str_replace("Ö", "Oe", $string);
   
   return $string;
}

function gender($num) {
  switch ($num)
  {
    case 0: return 'M';
    case 1: return 'W';
    case 2: return 'D';
    default: return 'unbekannt';
  }
}

function escape($connection, $string) {
  return str_replace('\n','', trim(mysqli_real_escape_string($connection, $string)));
}

function timeLessThan($hour1, $minute1, $hour2, $minute2) {
	$val1 = $hour1 * 60 + $minute1;
	$val2 = $hour2 * 60 + $minute2;

	if( $val1 < $val2 ){
		return true;
	} else {
		return false;
	}
}

function timeI2S( $hour, $minute, $separator ) {
	return str_pad($hour, 2, '0') . $separator . str_pad($minute, 2, '0');
}

function stepCount($hour1, $minute1, $hour2, $minute2, $intervall) {
	$val1 = $hour1 * 60 + $minute1;
	$val2 = $hour2 * 60 + $minute2;

	$retval = (($val2 - $val1) / $intervall);
	return $retval;
}

function login( $token ) {
	$expectedToken = sha1( MAGIC_WORD . date(MAGIC_DATE) );
	return ($expectedToken === $token);
}

?>