convert array keys to lowercase
// just for fun, because there already is a native function:
// array array_change_key_case( array $array [, int $case = CASE_LOWER ] ) // || CASE_UPPER
function _array_keys_lower($datos){
// convertir keys de MAY a min
foreach($datos as $k => $v){
if($k == 0){
$cols = array_keys($v);
// pr($cols,"cols");
$Mm = array();
foreach($cols as $c => $col){
$Mm[$col] = strtolower($col);
}
// pr($Mm,"Mm");
}
foreach($Mm as $M => $m){
$datos[$k][$m] = $v[$M];
unset($datos[$k][$M]);
}
}
return $datos;
}