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Forbid empty() on set variables
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empty is as widely used as dangerous. Per the manual and our coding conventions, empty should only be used when the target may be unset, to suppress errors. Otherwise, a simple boolean cast is enough.

Given how hard is to determine whether a variable is set, this should be implemented within phan. I opened an upstream task for it, If an upstream rule is added, we must make sure to enable it in our config.

Event Timeline

Daimona created this task.Sep 30 2019, 4:11 PM
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Daimona updated the task description. (Show Details)Sep 30 2019, 4:11 PM