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<?php |
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/** |
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* This file is part of slick/session package |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Slick\Session\Driver; |
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use Slick\Session\SessionDriverInterface; |
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/** |
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* Session driver, base class for all session drivers |
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* |
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* @package Slick\Session\Driver |
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* @author Filipe Silva <[email protected]> |
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*/ |
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abstract class Driver implements SessionDriverInterface |
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{ |
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/** |
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* @var string Session prefix on key names |
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*/ |
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protected $prefix; |
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/** |
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* Driver constructor. |
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* |
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* The $options parameter is an associative array where key will be matched |
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* with the driver property and if property exists the correspondent value |
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* will be assigned. |
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* |
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* @param array $options |
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*/ |
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public function __construct(array $options = []) |
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{ |
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foreach ($options as $name => $option) { |
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if (property_exists($this, $name)) { |
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$this->{$name} = $option; |
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} |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function set($key, $value) |
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{ |
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$prefix = $this->prefix; |
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$_SESSION[$prefix.$key] = $value; |
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return $this; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function get($key, $default = null) |
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{ |
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$key = $this->prefix.$key; |
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$value = $default; |
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if (array_key_exists($key, $_SESSION)) { |
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$value = $_SESSION[$key]; |
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} |
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return $value; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function erase($key) |
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{ |
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$prefix = $this->prefix; |
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unset($_SESSION[$prefix.$key]); |
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return $this; |
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} |
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/** |
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* Sets the prefix for session key names |
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* |
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* @param string $prefix |
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* |
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* @return $this |
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*/ |
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public function setPrefix($prefix) |
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{ |
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$this->prefix = $prefix; |
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return $this; |
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} |
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} |
Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: