funzione che stampa errore

[badaze]

Prova cosi.

$catcount = isset($categorydata[$key["parentcategory"]]) ? count($categorydata[$key["parentcategory"]]) :0;
$categorydata[$key["parentcategory"]][$catcount] = $key;
$categoryidlist[] = $key["categoryid"]; 

Siccome concordo con alhazred agiro' come lui in futuro.