doWhile.alwaysFalse

Code example

<?php declare(strict_types = 1);

function doFoo(): void
{
	do {
		echo 'hello';
	} while (false);
}

Why is it reported?

The condition in the do-while loop always evaluates to false, meaning the loop body will always execute exactly once. While do { ... } while (false); is a valid pattern in some contexts, it may indicate a logic error when the condition was intended to be dynamic.

How to fix it

If the loop body should only execute once, remove the loop:

 <?php declare(strict_types = 1);

 function doFoo(): void
 {
-	do {
-		echo 'hello';
-	} while (false);
+	echo 'hello';
 }

Or fix the condition so it depends on a meaningful expression.