Summary:
Fixes T9235. When the stars align, PHP 5.6 or newer emits a deprecation warning on startup about "always_populate_raw_post_data" which occurs too early for us to intercept and can break responses by adding garbage to the output.
These settings appear to be sufficient:
```
always_populate_raw_post_data = 1
display_errors = 1
display_startup_errors = 1
error_reporting = -1
```
Then make a request with an unusual content type:
```
$ curl -X POST -H "Content-Type: application/json" -d "{foo: bar}" http://phabricator.example.com/
```
This triggers the warning:
```
<br />
<b>Deprecated</b>: Automatically populating $HTTP_RAW_POST_DATA is deprecated and will be removed in a future version. To avoid this warning set 'always_populate_raw_post_data' to '-1' in php.ini and use the php://input stream instead. in <b>Unknown</b> on line <b>0</b><br />
<br />
...
```
To avoid this, just instruct administrators to set this value to "-1", which completely disables the feature and silences the warning.
Test Plan:
- Reproduced this issue by following the instructions above.
- Triggered the setup issue locally and read all the captivating prose:
{F1786911}
- Made the configuration change it directed me to, saw the setup issue resolve.
Reviewers: jcox
Reviewed By: jcox
Maniphest Tasks: T9235
Differential Revision: https://secure.phabricator.com/D16454
Summary: Fixes T8850. Previously, if a user's preamble script mangled `$_SERVER['REMOTE_ADDR']` or somehow set it to `null`, the user would get errors when performing certain actions. Now those errors shouldn't occur, and instead the user will be warned that there is a setup issue related to their preamble script.
Test Plan: Create a preamble script that contains `$_SERVER['REMOTE_ADDR'] = null;` then navigate to /config/issue/. There should be a warning there about `REMOTE_ADDR` not being available.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: Korvin, yelirekim, epriestley
Maniphest Tasks: T8850
Differential Revision: https://secure.phabricator.com/D16450
Summary: Ref T9640. Fixes T9888. Decline to support PHP 7 until the async signal handling issue in T11270 is resolved.
Test Plan: Faked local version, got helpful error message.
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T9640, T9888
Differential Revision: https://secure.phabricator.com/D16231
Summary: Groups setup issues into Important, PHP, MySQL, and Base for easier parsing on initial installations.
Test Plan:
Test my internal server and various issues.
{F289699}
Reviewers: btrahan, epriestley
Reviewed By: epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T7207
Differential Revision: https://secure.phabricator.com/D11726
