The installer is far too late of a place to be checking if
a function does or doesn't exist if we require it for operation.
Functions can very easily (T137509) be called prior to ever
getting to the installer check page.
Also, an old installation could've gotten past the checks if
they ran update.php --skip-compat-checks. What a scary setting!
Instead, fail hard, fast and early along with PHP version checks.
All entry points are required to go through this.
While we're here, also remove the check for mbstring.func_overload
since we already would've failed at WebStart.php
Change-Id: Ib9727979af2a4741f3cd952d13a3bb350fad43e4
We bumped to version 1.28 in mediawiki recently but seems we forgot to do
it in PHPVersionCheck.php.
Change-Id: I2a455669b68225fd9d6772c8482559c220d433b5
Result of RfC and extensive discussion. RfC approved
by Tim/ArchCom on 2016-01-27.
Bug: T75901
Depends-On: I00e2e7adf5202384fc92371b8d0551782c3c17cb
Change-Id: I68c5b5d60952418ff8300c163edfe2275571f41f
* separate warnings for PHP version and vendor
* new wfGenericError() function
* minimum PHP version in a single place
Bug: T102094
Change-Id: I7ae0369e4bab279d5e1bc754fe1a0bc8543bb2ed
This way, if someone tries to install MediaWiki via
either web installer or install.php maintenance script,
after obtaining from git, they get some useful information
on what to do.
Put the checks alongside the php version check, as
stuff installed via composer (mustache / lightncandy)
is used for NoLocalSettings.php and install.php
attempts to use logging stuff.
Also tried to make PHPVersionError look slightly nicer,
with some <h2> elements and more padding for the <p>
elements.
and centralized this code in one place, as much as possible,
for improved ease of maintenance.
Bug: T90438
Bug: T88951
Change-Id: Iae4eb42c4266dbe9213c5de8a96fccfbeaa9acb0
