smallerOrEqual.alwaysFalse

Code example

<?php declare(strict_types = 1);

function doFoo(int $i): void
{
    if ($i > 5) {
        if ($i <= 2) {
            // never reached
        }
    }
}

Why is it reported?

The <= (less than or equal) comparison always evaluates to false because the types of the compared values make it impossible for the condition to be true. In this example, inside the if ($i > 5) branch, the variable $i is known to be of type int<6, max>. Comparing $i <= 2 is always false because a value that is at least 6 can never be less than or equal to 2.

This usually indicates a logic error or a redundant check that can never be reached.

How to fix it

Fix the comparison to use the correct value:

 <?php declare(strict_types = 1);

 function doFoo(int $i): void
 {
     if ($i > 5) {
-        if ($i <= 2) {
+        if ($i <= 10) {
             // ...
         }
     }
 }

Or remove the unreachable condition entirely:

 <?php declare(strict_types = 1);

 function doFoo(int $i): void
 {
     if ($i > 5) {
-        if ($i <= 2) {
-            // never reached
-        }
+        // execute code directly
     }
 }