src/value/ValueParser.php
public function parseNumeric($value) {
    if (is_numeric($value)) {
      return $value + 0;
    }

    $exportValue = var_export($value, true);
    throw new ParseException("'$exportValue' could not be parsed as a number");
  }
public function parseNumeric($value) {
    if (is_numeric($value)) {
      return $value + 0;
    }

    $exportValue = var_export($value, true);
    throw new ParseException("'$exportValue' could not be parsed as a number");
  }
public function parseNumeric ( $ value ) { if ( is_numeric ( $ value ) ) { return $ value + 0 ; } $ exportValue = var_export ( $ value , true ) ; throw new ParseException ( "'$exportValue' could not be parsed as a number" ) ; }
Make this numeric element a number of the correct type.

See @link http://php.net/manual/de/function.is-numeric.php#107326

@param mixed $value the value
@return int|float the parsed value

@throws ParseException if the element is not numeric
Make this numeric element a number of the correct type .