wamp - xdebug configuration is not getting saved - php

Question

This is my xdebug configuration in my php.ini
[xdebug]
zend_extension="C:\wamp64\bin\php\php5.6.35\zend_ext\php_xdebug-2.5.5-5.6-vc11-x86_64.dll"
xdebug.remote_log = C:\wamp64\logs\xdebug.log
xdebug.idekey = PHPSTORM
xdebug.remote_port = 9000
xdebug.remote_handler="dbgp"
xdebug.remote_autostart = on
xdebug.remote_start = on
xdebug.remote_enable = on
xdebug.remote_connect_back = on
it is at the very bottom of the file.
As you can see, I have set the xdebug.idekey to PHPSTORM, but phpinfo() shows that the value is not set, what am I doing wrong?
I also set the idekey through PhpStorm, but why is there no value entry in phpinfo() at the bottom? The top one is filled ?!

Answer 1

EDIT from comments and #Black's answer this is the answer :
WAMP use 3 PHP.ini files :
Apache's file : wamp\bin\apache\apache[version]\bin\php.ini
PHP's file : wamp\bin\php\php[version]\php.ini
Third file : wamp\bin\php\php[version]\phpForApache.ini
First two files are usefull, apache's file is used for HTTP calls, PHP's one for CGI/CLI. The third one is used when your WAMP has 2 PHP's version, WAMP use it for saving the current config and then create a new PHP.ini file for the new version. This happens during the switch of PHP's version.
In the Xdebug's case, indeed it was the apache's file that matter. It's a common issue when the phpinfo don't show any modifications.
If you have the same configuration between those two files, you also can make a symlink from PHP's file to apache one. This will save a lot of headache.
UNLUCKY TRIES
Depends on your request, you may want to configure your server with differents things.
You tried to use Xdebug as remote, then your IDEKEY should be SET as environment variable named : DBGP_IDEKEY
Here's the doc :
xdebug.idekey
Type: string, Default value: complex Controls which IDE Key Xdebug
should pass on to the DBGp debugger handler. The default is based on
environment settings. First the environment setting DBGP_IDEKEY is
consulted, then USER and as last USERNAME. The default is set to the
first environment variable that is found. If none could be found the
setting has as default ''. If this setting is set, it always overrides
the environment variables.
You may be concerned by conditions that I pointed out with italic text
as linked in comment, take a look at the full documentation
I remember that WAMP use Xdebug as an Thread safe extension, you should try to
replace
zend_extension="C:\wamp64\bin\php\php5.6.35\zend_ext\php_xdebug-2.5.5-5.6-vc11-x86_64.dll"
by
zend_extension_ts="C:\wamp64\bin\php\php5.6.35\zend_ext\php_xdebug-2.5.5-5.6-vc11-x86_64.dll"
And check if you have download a correct version of Xdebug (Thread Safe)
Then restart wamp and see if something has changed.
EDIT : You have an issue with your PHP.ini, you're not modifying the right one. I succeeded on mine with this :
; XDEBUG Extension zend_extension = "C:\wamp\bin\php\php7.0.4\zend_ext\php_xdebug-2.4.0-7.0-vc14-x86_64.dll" ;
[xdebug]
xdebug.remote_enable=1
xdebug.idekey = "PHPSTORM"
xdebug.remote_autostart= on
xdebug.remote_connect_back= 1
xdebug.remote_host="127.0.0.1"
xdebug.remote_port=9000
xdebug.remote_handler="dbgp"
xdebug.remote_mode=req
xdebug.profiler_enable = 0
xdebug.profiler_output_dir = "c:/wamp/tmp/"
xdebug.collect_params = On
xdebug.show_local_vars = On`

Answer 2

The reason why it was not saved is that on wamp you have to store your config in C:\wamp64\bin\apache\apache_VERSION\bin\php.ini instead of C:\wamp64\bin\php\php_VERSION\php.ini.
I searched my whole wamp/bin/php folder for the occurence of the string xdebug by using Notepad++, thats how I found it out.