---
title: "booleanOr.rightNotBoolean"
shortDescription: "Right side of || is not a boolean value."
ignorable: true
---

## Code example

```php
<?php declare(strict_types = 1);

$bool = false;
$count = 5;

if ($bool || $count) {
	// ...
}
```

## Why is it reported?

The right side of the `||` (boolean OR) expression is not a boolean value. PHP will implicitly cast the non-boolean value to `bool` before evaluating the expression. This implicit type coercion can lead to unexpected behaviour depending on PHP's type juggling rules.

This rule is part of [phpstan-strict-rules](https://github.com/phpstan/phpstan-strict-rules) and enforces that only boolean values are used with the `||` operator, making the code's intent explicit.

In the example above, `$count` is of type `int`, not `bool`, so using it on the right side of `||` relies on PHP's loose type coercion.

## How to fix it

Use an explicit comparison to produce a boolean value:

```diff-php
 <?php declare(strict_types = 1);

 $bool = false;
 $count = 5;

-if ($bool || $count) {
+if ($bool || $count > 0) {
 	// ...
 }
```

Or convert the value to boolean before using it:

```diff-php
 <?php declare(strict_types = 1);

 $bool = false;
 $count = 5;

-if ($bool || $count) {
+if ($bool || $count !== 0) {
 	// ...
 }
```
