Yiisoft\Cache\Dependency\ExpressionDependency

Complexity

Total Complexity

2

Size/Duplication

Total Lines	36
Duplicated Lines	0 %

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	4	1
A	generateDependencyData()	0	3	1

<?php
namespace Yiisoft\Cache\Dependency;

use Yiisoft\Cache\CacheInterface;

/**
 * ExpressionDependency represents a dependency based on the result of a PHP expression.
 *
 * ExpressionDependency will use `eval()` to evaluate the PHP expression.
 * The dependency is reported as unchanged if and only if the result of the expression is
 * the same as the one evaluated when storing the data to cache.
 *
 * A PHP expression can be any PHP code that has a value. To learn more about what an expression is,
 * please refer to the [php manual](http://www.php.net/manual/en/language.expressions.php).
 *
 * For more details and usage information on Cache, see the [guide article on caching](guide:caching-overview).
 */
final class ExpressionDependency extends Dependency
{
    /**
     * @var string the string representation of a PHP expression whose result is used to determine the dependency.
     * A PHP expression can be any PHP code that evaluates to a value. To learn more about what an expression is,
     * please refer to the [php manual](http://www.php.net/manual/en/language.expressions.php).
     */
    private $expression;
    /**
     * @var mixed custom parameters associated with this dependency. You may get the value
     * of this property in {@see expression} using `$this->params`.
     */
    private $params;

    /**
     * @param string $expression the string representation of a PHP expression whose result is used to determine the dependency.
     * A PHP expression can be any PHP code that evaluates to a value. To learn more about what an expression is,
     * please refer to the [php manual](http://www.php.net/manual/en/language.expressions.php).
     * @param mixed $params custom parameters associated with this dependency. You may get the value
     * of this property in {@see expression} using `$this->params`.
     */
    public function __construct(string $expression, mixed $params = null)

The type Yiisoft\Cache\Dependency\mixed was not found. Maybe you did not declare it correctly or list all dependencies?

    {
        $this->expression = $expression;
        $this->params = $params;
    }

    /**
     * Generates the data needed to determine if dependency has been changed.
     * This method returns the result of the PHP expression.
     * @param CacheInterface $cache the cache component that is currently evaluating this dependency
     * @return mixed the data needed to determine if dependency has been changed.
     */
    protected function generateDependencyData(CacheInterface $cache)
    {
        return eval("return {$this->expression};");

The use of eval() is discouraged.

    }
}