Question

I already asked this but I dont know how to fix it please help, my $obj->obtainID($a); i returns nothing for the second index.

Description:
I got an $arrayDirectoy variable which contains just 2 values, then I tried to pass that variable to a query in a for loop to retrieve the ids of each one, but It just echo me one id, and there are two ids, I dont know how to fix that, It just print me 1 id.

Example $arrayDirectory[] = {user1, user2};

it must echo 1 2 but just print me 1

for($i=0;$i<sizeof($arrayDirectory);$i++){ 
    $res[$i] = $obj->obtainID($arrayDirectory[$i]);

    echo $res[$i];

}

this is my obtainID method

public function obtainID($user){

        $conexion = $this->objConexion->configuracion();
        $query = "CALL sp_xxx('$user')";
        $stmt = $conexion->prepare($query);
        $stmt->execute();
        $resultado = $stmt->fetchColumn();
        return $res;
    }

Answer 1

There are a couple issues. First, you have a syntax error — you forgot a closing parenthesis to sizeof():

for($i=0;$i<sizeof($arrayDirectory;$i++){ 

Also, if you’re not changing the number of elements, there’s no need to call sizeof() more than once:

$count = count($arrayDirectory); // or sizeof(), doesn't matter
for($i=0; $i<$count; $i++)

Lastly, you should be calling count() or sizeof() on $arrayDirectory[0], not $arrayDirectory. This is because the array only has one element, which happens to be an object that contains two fields. Alternatively, it probably makes sense for $arrayDirectory to just be an object, not an array.

So, your final code should look like:

$arrayDirectory = {'user1', 'user2'};
$count = count($arrayDirectory); // or sizeof(), doesn't matter
for($i=0; $i<$count; $i++) 
    $res[$i] = $obj->obtainID($arrayDirectory[$i]);
    echo $res[$i];
}