Requirement of PHP7.1 breaking other packages about instantiator HOT 4 CLOSED

@elton182 Not sure if it is your use-case but there is another thing you might be interested in.

In composer.json you can use the platform option to specify which PHP version should composer use when resolving dependencies. This is useful in cases like having PHP 7.1 locally but PHP 7.0 on production server. Normally when you update composer would happily install versions that need 7.1 and the resulting composer.lock would be useless on your production server. However when you set platform to 7.0 composer will not use such versions even if you're using 7.1 when running composer update.

This is in fact the only good option when you need to resolve all cascade dependencies correctly for an out-dated project.

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Older versions still require whatever they require before. It’s also perfectly possible to get older versions when using an old PHP version. See http://doctrine-project.org/2017/07/25/php-7.1-requirement-and-composer.html

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Perfect! I did not know that composer updates take into account the php version on my system.

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Thanks @enumag, that's exactly what I did! It's the same case, I have php7.1 locally and 7.0 on production.

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