SubjectivePHP\Psr\SimpleCache\KeyValidatorTrait::validateKey()

Complexity

Conditions	4
Paths	3

Size

Total Lines

10

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
    protected function validateKey($key)
    {
        if (!is_string($key) || $key === '') {
            throw new InvalidArgumentException('$key must be a valid non empty string');
        }

        if (preg_match('#[{}()/\\\@:]#', $key) > 0) {
            throw new InvalidArgumentException("Key '{$key}' contains unsupported characters");
        }
    }