I want to decrypt encrypted url with -HASH-
<?php echo $this->tag->linkTo(array("spm_contacto/edit/" . $this->security->hash($SPM_CONTACTO->CONT_CODIGO), "<img src='" . $this->url->get("img/tolbar/edit-validated32.png") . "'>")); ?></td>
But I find just check hash function to compare with another value I can not be decoded to receive it in a PHP function I want to receive to use this function
$SPM_CONTACTO = SpmContacto::findFirstByCONT_CODIGO($CONT_CODIGO);