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<?php |
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/** |
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* Upstream cache. |
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* |
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* @package UpStream |
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*/ |
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|
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// Exit if accessed directly. |
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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|
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/** |
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* Upstream cache class. |
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*/ |
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class Upstream_Cache { |
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|
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/** |
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* Instance class. |
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* |
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* @var object $instance |
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*/ |
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protected static $instance; |
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|
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/** |
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* Cache data. |
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* |
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* @var array $cache |
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*/ |
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protected $cache = array(); |
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|
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/** |
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* Cache setter. |
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* |
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* @param mixed $key Cache key. |
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* @param mixed $value Cache value. |
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*/ |
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public function set( $key, $value ) { |
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$this->cache[ $key ] = $value; |
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} |
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|
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/** |
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* Cache getter. |
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* |
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* @param mixed $key Cache key. |
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* @return mixed Cache value. |
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*/ |
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public function get( $key ) { |
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if ( isset( $this->cache[ $key ] ) ) { |
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return $this->cache[ $key ]; |
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} |
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|
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return false; |
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} |
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|
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/** |
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* Cache reseter. |
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*/ |
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public function reset() { |
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$this->cache = array(); |
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} |
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|
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/** |
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* Instance getter. |
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*/ |
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public static function get_instance() { |
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if ( empty( static::$instance ) ) { |
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$instance = new self(); |
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static::$instance = $instance; |
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} |
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|
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return static::$instance; |
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} |
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} |
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|
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/** |
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* Cache metadata getter. |
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*/ |
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function upstream_cache_get_metadata() { |
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$str = 'upstream_cache_get_metadata'; |
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$args = func_get_args(); |
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|
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for ( $i = 0; $i < func_num_args(); $i++ ) { |
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$str .= $args[ $i ]; |
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} |
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|
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$cache = Upstream_Cache::get_instance(); |
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$res = $cache->get( $str ); |
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|
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if ( false !== $res ) { |
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return $res; |
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} |
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|
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$cache->set( $str, $res ); |
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|
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return call_user_func_array( 'get_metadata', $args ); |
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} |
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|
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/** |
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* Cache post meta getter. |
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*/ |
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function upstream_cache_get_post_meta() { |
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$str = 'upstream_cache_get_post_meta'; |
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$args = func_get_args(); |
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|
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for ( $i = 0; $i < func_num_args(); $i++ ) { |
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$str .= $args[ $i ]; |
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} |
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|
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$cache = Upstream_Cache::get_instance(); |
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$res = $cache->get( $str ); |
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|
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if ( false !== $res ) { |
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return $res; |
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} |
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|
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$cache->set( $str, $res ); |
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|
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return call_user_func_array( 'get_post_meta', $args ); |
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} |
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|
