Description:
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When PHP has not been compiled using the --with-config-file-scan-dir option, php_ini_scanned_files() does not report additional ini files that have been scanned via the PHP_INI_SCAN_DIR environment variable .

However the correct information is shown when running php --ini

I realize that this is an edge-case, but PHP_INI_SCAN_DIR is used regardless of the compile option in php_init_config():
https://github.com/php/php-src/blob/1c295d4a9ac78fcc2f77d6695987598bb7abcb83/main/php_ini.c#L609

Whereas in php_ini_scanned_files() this option is required for the data to reported (even though the data exists):
https://github.com/php/php-src/blob/fcc6f2df5986bb9615a658cc717b1a92922462d2/ext/standard/info.c#L1388 


Test script:
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Using a Windows build (so no --with-config-file-scan-dir) create a file named "date.ini" somewhere containing the line:

date.timezone = Antarctica/McMurdo

Now run the following:
set PHP_INI_SCAN_DIR=path\to\somewhere

php -r "var_dump(php_ini_scanned_files());var_dump(ini_get('date.timezone'));" 

Expected result:
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Command line code:1:
string(???) "path\to\somewhere\date.ini"
Command line code:1:
string(18) "Antarctica/McMurdo"

Actual result:
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Command line code:1:
bool(false)
Command line code:1:
string(18) "Antarctica/McMurdo"