webAdministracion/processes/makeManager.php

<?php

	require_once 'config.php';
	require_once 'dbh.inc.php';
	require_once 'checkLogin.php';
	

	// EXAMPLE INPUT...
	// array(1) { ["researcherID"]=> string(1) "3" }

	$researcherID = mysqli_real_escape_string($connection, trim($_POST['researcherID']));
		
	// Check if name is not an empty string
	if($researcherID === '') {
		http_response_code(400);
		echo json_encode(array("error" => "Must specify researcher ID."));
		exit();
	}
		
	// Insert user
	$queryManager = "UPDATE researcher SET admin = '1' WHERE id_researcher = '$researcherID';";
	mysqli_query($connection, $queryManager) or die("Error: " . mysqli_error($connection));