On Sun, 22 Mar 2020 at 19:11, Mike Schinkel <m...@newclarity.net> wrote:
> IMO getting that in WordPress core is highly unlikely
Good point, like all systems, WordPress will need to consider older versions of
PHP.
But, because this is a new function, they can avoid that issue by using
`function_exists()`, as in...
if (function_exists('is_literal') && !is_literal($sql)) {
trigger_error('This is an unsafe $query, please use $wpdb->prepare()',
E_USER_NOTICE);
}
This would be a pretty easy way for WordPress to show they take security
seriously, and helping developers to avoid these "all too common" mistakes.
But I do appreciate how much effort it can be to introduce anything in to
WordPress :-)
Craig
> On 22 Mar 2020, at 19:10, Mike Schinkel <m...@newclarity.net> wrote:
>
>> On Mar 21, 2020, at 7:15 PM, Craig Francis <cr...@craigfrancis.co.uk> wrote:
>>
>> On Sat, 21 Mar 2020 at 22:53, Mike Schinkel <m...@newclarity.net> wrote:
>> A large number of PHP users have no control over the platform they run on,
>> so the option to use PECL modules is a non-starter for them.
>>
>>
>> Thanks Mike,
>>
>> Personally I agree, I would say PECL modules are not preferable for "useful
>> features"; simply because I try to keep my systems only using core PHP
>> features where possible (makes server admin easier).
>
> +1
>
>> As you mention working with WordPress, I've seen a couple of developers who
>> have taken examples like:
>>
>> $posts = $wpdb->get_results("SELECT ... WHERE post_type='post'");
>>
>> Then edited it to something dangerous like:
>>
>> $posts = $wpdb->get_results("SELECT ... WHERE post_type='" .
>> $_GET['type'] . "'");
>
> Yes. That is all too common.
>
>> To guard against this, do you think that WordPress could update their
>> get_results() function to do something like:
>>
>> public function get_results( $query = null, $output = OBJECT ) {
>> if (!is_literal($sql)) {
>> trigger_error('This is an unsafe $query, please use
>> $wpdb->prepare()', E_USER_NOTICE);
>> }
>>
>> Perhaps with a better message; then, over the years, increase the warning
>> level?
>>
>> I think that would be a very useful way of getting developers aware of these
>> dangers.
>
> Well...
>
> IMO getting that in WordPress core is highly unlikely for two (2) reasons:
>
> ------------
> 1. Getting the WordPress team to adopt new features is about as difficult as
> getting the PHP community to agree on and add a new feature. IOW, it is a
> huge uphill battle.
>
> I have many, many unfulfilled feature requests in WordPress' trac that are up
> to 8 years old or more even though on many of the tickets there appears to be
> universal interest. What I have found is that the WordPress team does not
> address anything unless they need it to implement the features that Matt has
> dictated should be in the next version of WordPress. Because of that, many
> very useful ticketsl sit there for years and years and do not get addressed.
>
> Of course if a core team member with commit access has a pet feature they
> want to add, it typically gets slipped it with no fanfare and then we are
> stuck with it (*cough* Customizer *cough*)
>
> I did recently get one ticket addressed about 11 months ago that was a subset
> of a ticket that is 9 years old (and sadly the OP on the older ticket has
> since died of cancer.)
>
> But I think I invested probably 80 hours over that duration constantly
> bringing it up on Slack publicly and via DMs and on the ticket. My guess is
> they were just tired of hearing from me. And ALL my ticket was asking for
> was a damn hook that many plugins had already added because WordPress core
> had not:
>
> https://core.trac.wordpress.org/ticket/47056
>
> ------------
> 2. More importantly — and a much higher bar — WordPress core supports PHP 5.6
> and so core cannot contain any features that are in a later version of PHP.
>
> https://wptavern.com/wordpress-ends-support-for-php-5-2-5-5-bumps-minimum-required-php-version-to-5-6
>
> And don't expect that to change any time soon. WordPress' minimum PHP
> requirements was notoriously 5.2.4 until March 2019 so it is unlikely they
> will bump the PHP requirement before March 2029.
>
> (just kidding, but only a bit.)
>
> Of course WordPress currently *recommends* PHP 7.3 and most (all?) managed
> hosts support that so userland developers are free to use newer version of
> WordPress on our own projects and in our plugins and themes.
>
> https://wordpress.org/about/requirements/
>
> But again, WordPress core cannot use any features anytime soon that are not
> in PHP 5.6.
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