Probleem met sessievariabelen naar volgende pagina

Ik heb een probleem met SESSIE variabelen. Ik heb 2 pagina’s gemaakt.


Test_1.php (dit werkt)

<?PHP
session_start();
$_SESSION['een']="nummer een";
echo "Sessie een=: ". $_SESSION['een'];
?>
RESULTAAT: Sessie een=: nummer een
------------------------------------------------------------


Test_2.php (dit werkt NIET)

<?PHP
session_start();
echo "Sessie een=: ". $_SESSION['een'];
?>
RESULTAAT: Sessie een=:

Kan iemand een tip geven waar dit aan zou kunnen liggen.
PHP Version 7.4.21


[Session]

session.save_handler = files
session.save_path = /Applications/MAMP/tmp/php
session.use_strict_mode = 0
session.use_cookies = 1

; http://php.net/session.cookie-secure
;session.cookie_secure =
session.use_only_cookies = 1
session.name = PHPSESSID
session.auto_start = 0
session.cookie_lifetime = 0
session.cookie_path = /
session.cookie_domain =
session.cookie_httponly =
session.serialize_handler = php
session.gc_probability = 1
session.gc_divisor = 100
session.gc_maxlifetime = 1440

; NOTE: If you are using the subdirectory option for storing session files
; (see session.save_path above), then garbage collection does *not*
; happen automatically. You will need to do your own garbage
; collection through a shell script, cron entry, or some other method.
; For example, the following script would is the equivalent of
; setting session.gc_maxlifetime to 1440 (1440 seconds = 24 minutes):
; find /path/to/sessions -cmin +24 -type f | xargs rm

; Check HTTP Referer to invalidate externally stored URLs containing ids.
; HTTP_REFERER has to contain this substring for the session to be
; considered as valid.
; http://php.net/session.referer-check
session.referer_check =

;
session.cache_limiter = nocache
session.cache_expire = 180
session.use_trans_sid = 0
session.sid_length = 26
session.trans_sid_tags = "a=href,area=href,frame=src,form="
;session.trans_sid_hosts=“"


Groet,
Peter