class not found if included from extern - php

Question

I have a this folder structure:
+ inc
++ functions.php
++ vendor
+ private
++ carddav
+++ check.php
my check.php looks like this and works:
<?php
require '../../inc/functions.php';
// CardDAV API
require '../../inc/vendor/autoload.php';
use MStilkerich\CardDavClient\{Account, AddressbookCollection, Config};
use Psr\Log\{AbstractLogger, NullLogger, LogLevel};
use Sabre\VObject\Component\VCard;
class StdoutLogger extends AbstractLogger {
public function log($level, $message, array $context = array()) {
if ($level !== LogLevel::DEBUG) {
$ctx = empty($context) ? "" : json_encode($context);
echo ">>> ".$message . $ctx . "<br />";
}
}
}
Config::init(new StdoutLogger());
$account = new Account(URL, USERNAME, PASSWORD);
$abook = new AddressbookCollection(URL, $account);
$vcard = new VCard();
?>
But now I would like to outsource this part into my functions.php:
functions.php
<?
// CardDAV API
require 'vendor/autoload.php';
use MStilkerich\CardDavClient\{Account, AddressbookCollection, Config};
use Psr\Log\{AbstractLogger, NullLogger, LogLevel};
use Sabre\VObject\Component\VCard;
class StdoutLogger extends AbstractLogger {
public function log($level, $message, array $context = array()) {
if ($level !== LogLevel::DEBUG) {
$ctx = empty($context) ? "" : json_encode($context);
echo ">>> ".$message . $ctx . "<br />";
}
}
}
Config::init(new StdoutLogger());
$account = new Account(URL, USERNAME, PASSWORD);
$abook = new AddressbookCollection(URL, $account);
?>
check.php
<?php
require '../../inc/functions.php';
$vcard = new VCard();
?>
But now I get this error when I open the check.php:
Fatal error: Uncaught Error: Class 'VCard' not found in check.php:26
Where is my mistake?
Tank you !

Answer 1

Imports using use statement work on a per file basis. I.e. classes need to be imported in the file where they're used. In your case remove Sabre\VObject\Component\VCard import from functions.php and move it to check.php where VCard class is actually used.