zabbix setup prerequisites

[warmup]

Hello,
I'm trying to install zabbix on debian8 / Apache 2.4.10 / php 5.6.27-0+deb8u1

when I load the setup.php page I've got :

PHP option memory_limit 128M 128M OK
PHP option post_max_size 8M 16M Fail
PHP option upload_max_filesize 2M 2M OK
PHP option max_execution_time 30 300 Fail
PHP option max_input_time -1 300 Fail
PHP time zone unknown Fail

the php.ini in /etc/php5/apache2/php.ini has got the good parameters that are requiered but it seems their are not taken in account. I stopped /reload apache, restart server, emptied browser cache, and checked other php.ini files on my server, but no way the setup web page with prerequisites that are still their instead of the fact that I modify the needed parameters in /etc/php5/apache2/php.ini.

Can you help ?

Thank you

Olivier

[SBO]

Is there any /etc/php/php.ini or /etc/php.ini file ?

EDIT : to check which php.ini file is used, create a .php file with <?php phpinfo(); ?> in it, browse it and look for Loaded configuration file, that should give you the right php.ini file to modify

[warmup]

Hello SBO, no there is no any /etc/php.ini

I created a .php with <?php phpinfo(); ?>. it gives : Loaded Configuration File /etc/php5/apache2/php.ini


but the file contains good parameters :
cat /etc/php5/apache2/php.ini | grep post_max_size
post_max_size = 16M