DominionEnterprises\Filter\Ints::filter()

Complexity

Conditions	21
Paths	21

Size

Total Lines	68
Code Lines	37

Duplication

Lines	6
Ratio	8.82 %

Importance

Changes

0

<?php
    public static function filter($value, $allowNull = false, $minValue = null, $maxValue = PHP_INT_MAX)
    {
        if ($allowNull !== false && $allowNull !== true) {

This code seems to be duplicated across your project.

            throw new \InvalidArgumentException('"' . var_export($allowNull, true) . '" $allowNull was not a bool');
        }

        if ($minValue !== null && !is_int($minValue)) {

This code seems to be duplicated across your project.

            throw new \InvalidArgumentException('"' . var_export($minValue, true) . '" $minValue was not an int');
        }

        if (!is_int($maxValue)) {
            throw new \InvalidArgumentException('"' . var_export($maxValue, true) . '" $maxValue was not an int');
        }

        if ($allowNull === true && $value === null) {
            return null;
        }

        $valueInt = null;

$valueInt is not used, you could remove the assignment.

        if (is_int($value)) {
            $valueInt = $value;
        } elseif (is_string($value)) {
            $value = trim($value);

            if (strlen($value) === 0) {
                throw new \Exception('$value string length is zero');
            }

            $stringToCheckDigits = $value;

            if ($value[0] === '-' || $value[0] === '+') {
                $stringToCheckDigits = substr($value, 1);
            }

            if (!ctype_digit($stringToCheckDigits)) {
                throw new \Exception(
                    "{$value} does not contain all digits, optionally prepended by a '+' or '-' and optionally "
                    . "surrounded by whitespace"
                );
            }

            $phpIntMin = ~PHP_INT_MAX;

            $casted = (int)$value;

            if ($casted === PHP_INT_MAX && $value !== (string)PHP_INT_MAX) {
                throw new \Exception("{$value} was greater than a max int of " . PHP_INT_MAX);
            }

            if ($casted === $phpIntMin && $value !== (string)$phpIntMin) {
                throw new \Exception("{$value} was less than a min int of {$phpIntMin}");
            }

            $valueInt = $casted;
        } else {
            throw new \Exception('"' . var_export($value, true) . '" $value is not a string');
        }

        if ($minValue !== null && $valueInt < $minValue) {
            throw new \Exception("{$valueInt} is less than {$minValue}");
        }

        if ($valueInt > $maxValue) {
            throw new \Exception("{$valueInt} is greater than {$maxValue}");
        }

        return $valueInt;
    }
}