Raise an error to circleci from php script

Deployments
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1

Hello everyone,
I’ve created a PHP script that checks and install database updates.
How may I return an error to CircleCI if something goes wrong?

circle.yml command:
ssh centos@somehost "sudo php /var/www/html/somewebpage/upgrade.php"

2

If you have your script return a non-zero error number CircleCi will detect it as a failure