How to use the findByField function of the fleaphp crud operation

findByField function prototype

 
/** 
*  Returns the first record with the specified field value  
* 
* @param string $field 
* @param mixed $value 
* @param string $sort 
* @param mixed $fields 
* 
* @return array 
*/ 
function & findByField($field, $value, $sort = null, $fields = '*') 
{ 
return $this->find(array($field => $value), $sort, $fields); 
} 

The findByField function parameter states
$field provides the field
for the query $value provides the value
for the query $sort sort
$fields requires a query to display the field name
Example of findByField function for fleaphp crud operation

 
$dirname = dirname(__FILE__); 
define('APP_DIR', $dirname . '/APP'); 
define('NO_LEGACY_FLEAPHP', true); 
require($dirname.'/FleaPHP/FLEA/FLEA.php'); 
// Set the cache directory  
FLEA::setAppInf('internalCacheDir',$dirname.'/_Cache'); 
// Linked database  
$dsn = array( 
'driver' => 'mysql', 
'host' => 'localhost', 
'login' => 'root', 
'password' => '', 
'database' => 'wordpress' 
); 
FLEA::setAppInf('dbDSN',$dsn); 
// read wp_posts The content of the  
FLEA::loadClass('FLEA_Db_TableDataGateway'); 
class Teble_Class extends FLEA_Db_TableDataGateway { 
var $tableName = 'wp_posts'; 
var $primaryKey = 'ID'; 
} 
$tableposts =& new Teble_Class(); 
$rowsets = $tableposts->findByField('ID',4,'post_date DESC',array('ID','post_title')); 
dump($rowsets);