From f5d3eeca3df61fd42abf041fbe69ac86a93c1e72 Mon Sep 17 00:00:00 2001
From: Peter Fox <peter.fox@peterfox.me>
Date: Wed, 16 Jul 2025 13:34:50 +0100
Subject: [PATCH] Allows for strict boolean validation

---
 .../Concerns/ValidatesAttributes.php          |  7 +-
 tests/Validation/ValidationValidatorTest.php  | 76 +++++++++++++++++++
 2 files changed, 82 insertions(+), 1 deletion(-)

diff --git a/src/Illuminate/Validation/Concerns/ValidatesAttributes.php b/src/Illuminate/Validation/Concerns/ValidatesAttributes.php
index dd567b1afe65..e44ddf5a75f4 100644
--- a/src/Illuminate/Validation/Concerns/ValidatesAttributes.php
+++ b/src/Illuminate/Validation/Concerns/ValidatesAttributes.php
@@ -482,12 +482,17 @@ public function validateBetween($attribute, $value, $parameters)
      *
      * @param  string  $attribute
      * @param  mixed  $value
+     * @param  array{0: 'strict'}  $parameters
      * @return bool
      */
-    public function validateBoolean($attribute, $value)
+    public function validateBoolean($attribute, $value, $parameters)
     {
         $acceptable = [true, false, 0, 1, '0', '1'];
 
+        if (($parameters[0] ?? null) === 'strict') {
+            $acceptable = [true, false];
+        }
+
         return in_array($value, $acceptable, true);
     }
 
diff --git a/tests/Validation/ValidationValidatorTest.php b/tests/Validation/ValidationValidatorTest.php
index 167711851fab..214b1aa3b459 100755
--- a/tests/Validation/ValidationValidatorTest.php
+++ b/tests/Validation/ValidationValidatorTest.php
@@ -3117,6 +3117,44 @@ public function testValidateBoolean()
         $this->assertTrue($v->passes());
     }
 
+    public function testValidateBooleanStrict()
+    {
+        $trans = $this->getIlluminateArrayTranslator();
+
+        $v = new Validator($trans, ['foo' => false], ['foo' => 'Boolean:strict']);
+        $this->assertTrue($v->passes());
+
+        $v = new Validator($trans, ['foo' => true], ['foo' => 'Boolean:strict']);
+        $this->assertTrue($v->passes());
+
+        $v = new Validator($trans, ['foo' => 'no'], ['foo' => 'Boolean:strict']);
+        $this->assertFalse($v->passes());
+
+        $v = new Validator($trans, ['foo' => 'yes'], ['foo' => 'Boolean:strict']);
+        $this->assertFalse($v->passes());
+
+        $v = new Validator($trans, ['foo' => 'false'], ['foo' => 'Boolean:strict']);
+        $this->assertFalse($v->passes());
+
+        $v = new Validator($trans, ['foo' => 'true'], ['foo' => 'Boolean:strict']);
+        $this->assertFalse($v->passes());
+
+        $v = new Validator($trans, [], ['foo' => 'Boolean:strict']);
+        $this->assertTrue($v->passes());
+
+        $v = new Validator($trans, ['foo' => '1'], ['foo' => 'Boolean:strict']);
+        $this->assertFalse($v->passes());
+
+        $v = new Validator($trans, ['foo' => 1], ['foo' => 'Boolean:strict']);
+        $this->assertFalse($v->passes());
+
+        $v = new Validator($trans, ['foo' => '0'], ['foo' => 'Boolean:strict']);
+        $this->assertFalse($v->passes());
+
+        $v = new Validator($trans, ['foo' => 0], ['foo' => 'Boolean:strict']);
+        $this->assertFalse($v->passes());
+    }
+
     public function testValidateBool()
     {
         $trans = $this->getIlluminateArrayTranslator();
@@ -3154,6 +3192,44 @@ public function testValidateBool()
         $this->assertTrue($v->passes());
     }
 
+    public function testValidateBoolStrict()
+    {
+        $trans = $this->getIlluminateArrayTranslator();
+
+        $v = new Validator($trans, ['foo' => false], ['foo' => 'Bool:strict']);
+        $this->assertTrue($v->passes());
+
+        $v = new Validator($trans, ['foo' => true], ['foo' => 'Bool:strict']);
+        $this->assertTrue($v->passes());
+
+        $v = new Validator($trans, ['foo' => 'no'], ['foo' => 'Bool:strict']);
+        $this->assertFalse($v->passes());
+
+        $v = new Validator($trans, ['foo' => 'yes'], ['foo' => 'Bool']);
+        $this->assertFalse($v->passes());
+
+        $v = new Validator($trans, ['foo' => 'false'], ['foo' => 'Bool:strict']);
+        $this->assertFalse($v->passes());
+
+        $v = new Validator($trans, ['foo' => 'true'], ['foo' => 'Bool:strict']);
+        $this->assertFalse($v->passes());
+
+        $v = new Validator($trans, [], ['foo' => 'Bool:strict']);
+        $this->assertTrue($v->passes());
+
+        $v = new Validator($trans, ['foo' => '1'], ['foo' => 'Bool:strict']);
+        $this->assertFalse($v->passes());
+
+        $v = new Validator($trans, ['foo' => 1], ['foo' => 'Bool:strict']);
+        $this->assertFalse($v->passes());
+
+        $v = new Validator($trans, ['foo' => '0'], ['foo' => 'Bool:strict']);
+        $this->assertFalse($v->passes());
+
+        $v = new Validator($trans, ['foo' => 0], ['foo' => 'Bool:strict']);
+        $this->assertFalse($v->passes());
+    }
+
     public function testValidateNumeric()
     {
         $trans = $this->getIlluminateArrayTranslator();