insert($table,$row)
Insert one entry
$db->insert('users',array('name'=>'John','pass'=>'qwerty'));
Replace entry:
$db->insert('users',array('id'=>1,'name'=>'John'));
If ID(row number) provided using insert(), the entry will be totally replaced!
If one or more fields are not provided during insertion they will be set to "" (empty).
return
true if entry is written or false otherwise