fuel/fuel/core/classes/cache/storage/file.php
protected function prep_contents()
	{
		$properties = array(
			'created'          => $this->created,
			'expiration'       => $this->expiration,
			'dependencies'     => $this->dependencies,
			'content_handler'  => $this->content_handler
		);
		$properties = '{{'.self::PROPS_TAG.'}}'.json_encode($properties).'{{/'.self::PROPS_TAG.'}}';

		return $properties.$this->contents;
	}
protected function prep_contents()
	{
		$properties = array(
			'created'          => $this->created,
			'expiration'       => $this->expiration,
			'dependencies'     => $this->dependencies,
			'content_handler'  => $this->content_handler
		);
		$properties = '{{'.self::PROPS_TAG.'}}'.json_encode($properties).'{{/'.self::PROPS_TAG.'}}';

		return $properties.$this->contents;
	}
protected function prep_contents ( ) { $ properties = array ( 'created' => $ this -> created , 'expiration' => $ this -> expiration , 'dependencies' => $ this -> dependencies , 'content_handler' => $ this -> content_handler ) ; $ properties = '{{' . self :: PROPS_TAG . '}}' . json_encode ( $ properties ) . '{{/' . self :: PROPS_TAG . '}}' ; return $ properties . $ this -> contents ; }
Prepend the cache properties

@return  string
Prepend the cache properties