On Thu, Mar 20, 2008 at 12:22 PM, Lamp Lists <lamp.lists@xxxxxxxxx> wrote: > hi, > I saw several times that some people use this > > $parameters = array( > 'param1' => "{$_POST["param1"]}", > 'param2' => "{$_POST["param2"]}" > ); > > or > > $query = mysql_query("SELECT * FROM table1 WHERE id='{$session_id}'"); > > I would use: > > $parameters = array( > 'param1' => $_POST["param1"], > 'param2' => $_POST["param2"] > ); > > and > > $query = mysql_query("SELECT * FROM table1 WHERE id=' ".$session_id." ' > "); > > > does it really matter? is there really difference or these are just two > "styles"? the short answer is yes. i think you can find a sufficient explanation here, http://us.php.net/manual/en/language.types.string.php#language.types.string.parsing.simple and here http://us.php.net/manual/en/language.types.string.php#language.types.string.parsing.complex -nathan