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<?php |
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|
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class HappyForms_Cache { |
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|
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private static $instance; |
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|
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private $cache = array(); |
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|
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public static function instance() { |
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if ( is_null( self::$instance ) ) { |
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self::$instance = new self(); |
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} |
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|
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return self::$instance; |
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} |
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|
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public function exists( $key ) { |
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$exists = isset( $this->cache[$key] ); |
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|
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return $exists; |
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} |
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|
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public function get( $key, &$found = null ) { |
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$found = false; |
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|
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if ( $this->exists( $key ) ) { |
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$found = true; |
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|
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if ( is_object( $this->cache[$key] ) ) { |
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return clone( $this->cache[$key] ); |
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} else { |
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return $this->cache[$key]; |
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} |
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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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public function set( $key, $value ) { |
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if ( is_object( $value ) ) { |
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$value = clone( $value ); |
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} |
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|
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$this->cache[$key] = $value; |
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|
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return true; |
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} |
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|
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} |
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|
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if ( ! function_exists( 'happyforms_get_cache' ) ): |
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|
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function happyforms_get_cache() { |
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return HappyForms_Cache::instance(); |
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} |
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|
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endif; |
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|
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happyforms_get_cache(); |
