codesniffers-right.php

<?php

foreach ($someArray as $value) {
    if (isSomething($value)) {
        $output->writeln("It's true!");
    } else {
        $output->writeln("It's false!");
    }
}

// phpmd: The method x uses an else expression. Else is never necessary and you can simplify the code to work without else.

// Oh sure, let me refactor that!
foreach ($someArray as $value) {
    if (isSomething($value)) {
        $output->writeln("It's true!");
        continue;
    }
    
    $output->writeln("It's false!");
}

// Meh...

Cheat!

$output->writeln(isSomething($value) ? "It's true!" : "It's false!");