vendor/zendframework/zend-filter/src/Decompress.php


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<?php
/**
 * Zend Framework (http://framework.zend.com/)
 *
 * @link      http://github.com/zendframework/zf2 for the canonical source repository
 * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
 * @license   http://framework.zend.com/license/new-bsd New BSD License
 */

namespace Zend\Filter;

/**
 * Decompresses a given string
 */
class Decompress extends Compress
{
    /**
     * Use filter as functor
     *
     * Decompresses the content $value with the defined settings
     *
     * @param  string $value Content to decompress
     * @return string The decompressed content
     */
    public function __invoke($value)
    {
        return $this->filter($value);
    }

    /**
     * Defined by FilterInterface
     *
     * Decompresses the content $value with the defined settings
     *
     * @param  string $value Content to decompress
     * @return string The decompressed content
     */
    public function filter($value)
    {
        if (!is_string($value) && $value !== null) {
            return $value;
        }

        return $this->getAdapter()->decompress($value);
    }
}