psalm/docs/running_psalm/issues/UnusedBaselineEntry.md

UnusedBaselineEntry

Emitted when a baseline entry is not being used to suppress an issue.

Enabled by findUnusedBaselineEntry

<?php
$a = 'Hello, World!';
echo $a;

<?xml version="1.0" encoding="UTF-8"?>
<files>
    <file src="example.php">
        <UnusedVariable>
            <!-- The following entry is unused and should be removed. -->
            <code>$a</code>
        </UnusedVariable>
    </file>
</files>