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we should document that the additionally loaded ini files directory(which can be set via --with-config-file-scan-dir when compiling) can be changed by the PHP_INI_SCAN_DIR environment variable (maybe mention the stuff like SetEnv PHP_INI_SCAN_DIR /tmp won't work, but exporting the PHP_INI_SCAN_DIR env var from the apache startup script will).
we should also mention that listing multiple directories is supported since 5.5.10:
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Also worth documenting: the variable can contain an empty part (e.g. `:/extra/dir` or `/extra/dir:`), in which case the default value will be used.
This can then be used to load a bunch of additional INI files at runtime, while preserving all globally configured INIs.
Looks like this is already documented at http://php.net/manual/en/configuration.file.php#configuration.file.scan
While the general behavior is indeed documented at that link (http://php.net/manual/en/configuration.file.php#configuration.file.scan), it does not mention that the capability to handle multiple directories is only available from 5.5.10, as tyrael requested.
Instead, the text makes it sound like any version after PHP 5.2.0 can accomplish this, since that is the only time a version is mentioned in that block. It would be great if that page could get a slight update. Or you could even just add it to the Changelog section of that page.
Either way, it'd be a big help. Thanks!