Make sure PHP executable is being resolved by composer

[hertzg]

There are situations where php executable is not in path or is not called php in those cases composer update and composer install will break or might use php version which might not be the same as the one running the composer process.

One of the examples can be that on your system you have at least two versions of PHP. One available as php the other as php.7.1 and so on.
If you were to run php7.1 /path/to/composer.phar install in the project directory, the composer will be executed by php7.1 but the artisan scripts will be run under php executable and most likely will fail.

Defining scripts in composer.json which reference php executable using @php token avoids this issue.

/ref https://getcomposer.org/doc/articles/scripts.md#executing-php-scripts
/ref composer/composer@b000061
/ref https://github.com/symfony/process/blob/master/PhpExecutableFinder.php

Changes in this pull request:

• replaced php artisan calls with @php artisan to ensure correct PHP executable resolution

@JC5

[JC5]

Nice work, merged! Don't worry about the build, I think I am the one who broke it ;-).