{"comment":{"url":"https://api.github.com/repos/hhvm/user-documentation/comments/15203700","html_url":"https://github.com/hhvm/user-documentation/commit/18752aa0b24dce7e078498307115bcc8f460c38c#commitcomment-15203700","id":15203700,"user":{"login":"SiebelsTim","id":1153003,"avatar_url":"https://avatars.githubusercontent.com/u/1153003?v=3","gravatar_id":"","url":"https://api.github.com/users/SiebelsTim","html_url":"https://github.com/SiebelsTim","followers_url":"https://api.github.com/users/SiebelsTim/followers","following_url":"https://api.github.com/users/SiebelsTim/following{/other_user}","gists_url":"https://api.github.com/users/SiebelsTim/gists{/gist_id}","starred_url":"https://api.github.com/users/SiebelsTim/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/SiebelsTim/subscriptions","organizations_url":"https://api.github.com/users/SiebelsTim/orgs","repos_url":"https://api.github.com/users/SiebelsTim/repos","events_url":"https://api.github.com/users/SiebelsTim/events{/privacy}","received_events_url":"https://api.github.com/users/SiebelsTim/received_events","type":"User","site_admin":false},"position":8,"line":8,"path":"guides/hack/25-typechecker/07-special-examples/unsafe_expr.php","commit_id":"18752aa0b24dce7e078498307115bcc8f460c38c","created_at":"2015-12-30T11:33:41Z","updated_at":"2015-12-30T11:33:41Z","body":"I don't know if that's the best example. \r\nIf you want to add a stringy number you should do `is_numeric` checks. This one unsafe call makes the complete function unsafe as the return value is unsafe as well. \r\nI don't think this is something one should do."}}