Msqli query array - php

Question

So I have my code
function GetApi($connection,$UserId){
global $Apicall;
$Apicall = array();
$Apiidquery = mysqli_query($connection, "SELECT ID FROM ` Characterapi` WHERE UserId = '$UserId'");
while($results = mysqli_fetch_assoc($Apiidquery)){
$Apicall[] = $results['ID'];
}
}
The output of this function if I call
$Apicall[0] = 3
$Apicall[1] = 11
and this is the information I want. But now I want to use a function like
function Keyquery($Apicall,$connection ){
global $keyidcall, $keyid ,$Vcode;
$Keyidquery = array();
$Keyidquery = mysqli_query($connection, "SELECT keyid, Vcode FROM `Characterapi` WHERE ID = '$Apicall'");
$results = mysqli_fetch_object($Keyidquery);
$keyid = $results->keyid;
$Vcode = $results->Vcode;
}
This code does run if i set $Apicall ="3"; The issue im having is that I want the first function to get All the IDs associated with $userId in my data base then for each Id run the second function to to get the two specific pieces of information from that query.

Answer 1

In response to the comment below, this is the solution which I would use. However you should be wary of using this method as it does not parameterize the values, and as such not sanitized.
<?php
function Keyquery($Apicall,$connection ){
global $keyidcall, $keyid ,$Vcode;
$string = "ID IN('";
$string.= implode("','", $Apicall);
$string.="')";
$Keyidquery = mysqli_query($connection, "SELECT keyid, Vcode FROM `Characterapi` WHERE ".$string.";");
$results = mysqli_fetch_object($Keyidquery);
$keyid = $results->keyid;
$Vcode = $results->Vcode;
}
?>