Error Identifier: greaterOrEqual.alwaysFalse

Every error reported by PHPStan has an error identifier. Here’s a list of all error identifiers. In PHPStan Pro you can see the error identifier next to each error and filter errors by their identifiers.

Code example #

<?php declare(strict_types = 1);

function check(int $value): void
{
    if ($value >= 0) {
        return;
    }

    if ($value >= 0) {
        echo 'non-negative';
    }
}

Why is it reported? #

The >= comparison is always false based on the types of the compared values. PHPStan determined from the control flow that the condition can never be true. This indicates dead code or a logic error.

How to fix it #

Review the logic and remove the always-false condition, or fix the comparison:

 <?php declare(strict_types = 1);
 
 function check(int $value): void
 {
     if ($value >= 0) {
         return;
     }

-    if ($value >= 0) {
-        echo 'non-negative';
-    }
+    echo 'negative: ' . $value;
 }

How to ignore this error #

You can use the identifier greaterOrEqual.alwaysFalse to ignore this error using a comment:

// @phpstan-ignore greaterOrEqual.alwaysFalse
codeThatProducesTheError();

You can also use only the identifier key to ignore all errors of the same type in your configuration file in the ignoreErrors parameter:

parameters:
	ignoreErrors:
		-
			identifier: greaterOrEqual.alwaysFalse

Rules that report this error #

PHPStan\Rules\Comparison\NumberComparisonOperatorsConstantConditionRule [1]

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