Title: Plugin dependency now requires PHP >= 7.4
Last modified: January 28, 2022

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# Plugin dependency now requires PHP >= 7.4

 *  Resolved [David Anderson / Team Updraft](https://wordpress.org/support/users/davidanderson/)
 * (@davidanderson)
 * [4 years, 5 months ago](https://wordpress.org/support/topic/plugin-dependency-now-requires-php-7-4/)
 * Hi Ewout,
 * I notice that in your most recent release you added a disabling of the platform
   dependency check, presumably because `phenx/php-svg-lib` 0.3.4, which is pulled
   in by `dompdf/dompdf` (which specifies `^0.3.3 || ^0.4.0`), specifies a requirement
   on PHP >= 7.4, thus causing fatal errors on earlier versions.
 * However, disabling the platform check hasn’t prevented `phenx/php-svg-lib` 0.3.4
   from being included. So, according to the authors, PHP >= 7.4 is still required.
   You need to specify `phenx/php-svg-lib` in `composer.json` in order for all the
   dependencies to be satisfied and only PHP >= 7.1 to be required.
 * (Presumably, if you’ve had no reports, then any PHP >= 7.4 code in `phenx/php-
   svg-lib`, if it exists, isn’t being run. But the author’s at least indicated 
   that he’s not going to maintain compatibility, so I’d say it still needs tweaking
   to stay safe).

Viewing 6 replies - 1 through 6 (of 6 total)

 *  Thread Starter [David Anderson / Team Updraft](https://wordpress.org/support/users/davidanderson/)
 * (@davidanderson)
 * [4 years, 5 months ago](https://wordpress.org/support/topic/plugin-dependency-now-requires-php-7-4/#post-15303591)
 * `composer show --tree` output on the current release, for interest:
 *     ```
       dompdf/dompdf dev-image-size DOMPDF is a CSS 2.1 compliant HTML to PDF converter
       ├──ext-dom *
       ├──ext-mbstring *
       ├──phenx/php-font-lib ^0.5.4
       │  └──ext-mbstring *
       ├──phenx/php-svg-lib ^0.3.3 || ^0.4.0
       │  ├──ext-mbstring *
       │  ├──php ^7.4 || ^8.0
       │  └──sabberworm/php-css-parser ^8.4
       │     ├──ext-iconv *
       │     └──php >=5.6.20
       └──php ^7.1 || ^8.0
       symfony/polyfill-iconv v1.20.0 Symfony polyfill for the Iconv extension
       └──php >=7.1
       symfony/polyfill-mbstring v1.20.0 Symfony polyfill for the Mbstring extension
       └──php >=7.1
       ```
   
 *  Plugin Contributor [Ewout](https://wordpress.org/support/users/pomegranate/)
 * (@pomegranate)
 * [4 years, 5 months ago](https://wordpress.org/support/topic/plugin-dependency-now-requires-php-7-4/#post-15303922)
 * Hello David,
    We’ve [discussed this with the author on Github](https://github.com/dompdf/php-svg-lib/pull/78)(
   the library has been adopted by the `dompdf` organization), and the fact that
   he’s stating 7.4+ is only because they want to encourage contributors to write
   modern code. There have been no breaking changes for PHP7.1+ and since we ship
   our plugin bundled with dompdf installed we can run our own compatibility tests.
   We’ve disabled the platform check precisely to be able to run the latest version
   of `dompdf/php-svg-lib` that is currently still compatible with PHP7.1+ (we bundle`
   0.4.0` which is even newer than the `0.3.4` version that you mention, because
   we use a custom pre-release version of dompdf 1.2.0 that addressed some issues
   we were having with 1.1.1)
 * If there are any issues you are seeing on PHP7.1+ please let us know but we haven’t
   found any yet!
 *  Plugin Contributor [Ewout](https://wordpress.org/support/users/pomegranate/)
 * (@pomegranate)
 * [4 years, 5 months ago](https://wordpress.org/support/topic/plugin-dependency-now-requires-php-7-4/#post-15303936)
 * To be clear: the 7.4 requirement was added with no actual code changes. And it
   will most likely be reverted to 7.1 in the next release (0.4.1).
 *  Thread Starter [David Anderson / Team Updraft](https://wordpress.org/support/users/davidanderson/)
 * (@davidanderson)
 * [4 years, 5 months ago](https://wordpress.org/support/topic/plugin-dependency-now-requires-php-7-4/#post-15303939)
 * I see! I think that’s a counter-productive decision by the plugin author, for
   two reasons:
 * 1) by listing it as requiring PHP 7.4 when it really doesn’t, it means that some
   consumers are going to lock in a requirement on his previous version.
 * 2) when he decides that he really will use constructions that require PHP >= 
   7.2, there’s no easy way for downstream consumers to learn about the change. (
   They’d presumably have to monitor commits).
 * I realise it’s not your decision. I’m just thinking out loud. I will mark this
   as resolved!
 * David
 *  Thread Starter [David Anderson / Team Updraft](https://wordpress.org/support/users/davidanderson/)
 * (@davidanderson)
 * [4 years, 5 months ago](https://wordpress.org/support/topic/plugin-dependency-now-requires-php-7-4/#post-15303945)
 * Posts crossed there (I was writing before the latter one came in).
 *  Plugin Contributor [Ewout](https://wordpress.org/support/users/pomegranate/)
 * (@pomegranate)
 * [4 years, 5 months ago](https://wordpress.org/support/topic/plugin-dependency-now-requires-php-7-4/#post-15303983)
 * Pro tip: enable [Also Viewing](https://make.wordpress.org/support/handbook/appendix/helpful-tools/#avoiding-overlapping-replies)
   in your user profile to see other people (requires them to also have enabled 
   this feature, but many plugin developers and moderators have).

Viewing 6 replies - 1 through 6 (of 6 total)

The topic ‘Plugin dependency now requires PHP >= 7.4’ is closed to new replies.

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 * 6 replies
 * 2 participants
 * Last reply from: [Ewout](https://wordpress.org/support/users/pomegranate/)
 * Last activity: [4 years, 5 months ago](https://wordpress.org/support/topic/plugin-dependency-now-requires-php-7-4/#post-15303983)
 * Status: resolved