@rubenlech

You shouldn’t need to attempt to install cron as it’s already part of the distro.

That said, try using:

echo "* * * * * php /var/www/html/test.php" | crontab

You can then confirm that the scheduled task exists by running crontab -e.

I setup a test script using the same command and it did exactly as expected.

<?php
$file   =   '/usr/local/src/test.log';
$date   =   date('Y-m-d') . PHP_EOL;

$file   =   file_put_contents( $file, $date, FILE_APPEND );

All it’s doing is appending $date to a new line in test.log every minute.

After 10 minutes, the file looked like:

2017-05-24
2017-05-24
2017-05-24
2017-05-24
2017-05-24
2017-05-24
2017-05-24
2017-05-24
2017-05-24
2017-05-24

At which point I deleted the task since it was working as expected.

…

You’ll need to make sure you have the CLI package installed for your PHP version. Since this is executing from the command line, that package is required.