Working with multiple php versions on CLI / Composer

Working with multiple php versions on CLI / Composer

There are a few reasons why we built our hosting solution around Plesk.

1) It is extremely light weight. Essentially its only function is to provide a front end for configuring nginx / apache / php. That is it.  There are no other over heads.

2) It is extremely flexible. You can specify any version of php or a different apache / nginx config on a per domain basis.

With this latter feature there does come a few issues you need to bear in mind when working on the command line.

At any point in time there is a default php version on the CLI. However, you can call any other version directly at any time using

/opt/plesk/php/X.X/bin/php 

Where X.X is the php version you require eg

/opt/plesk/php/7.3/bin/php 

If you are working with composer you may also need to work with a specific version of php.  While you can edit composer.json it is easier to specify when you call composer

/opt/plesk/php/X.X/bin/php /usr/lib/plesk-9.0/composer.phar [options] [arguments]

Again where X.X is the version of php your project requires.

This will allow you to meet dependency need regardless of what the current CLI version of PHP is configured.

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