[9.x] Fix ExcludeIf regression to use Closure over is_callable()

src/Illuminate/Validation/Rules/ExcludeIf.php

@@ -2,6 +2,7 @@
 
 namespace Illuminate\Validation\Rules;
 
+use Closure;
 use InvalidArgumentException;
 
 class ExcludeIf
@@ -16,14 +17,14 @@ class ExcludeIf
     /**
      * Create a new exclude validation rule based on a condition.
      *
-     * @param  callable|bool  $condition
+     * @param  \Closure|bool  $condition
      * @return void
      *
      * @throws \InvalidArgumentException
      */
     public function __construct($condition)
     {
-        if (is_callable($condition) || is_bool($condition)) {
+        if ($condition instanceof Closure || is_bool($condition)) {
             $this->condition = $condition;
         } else {
             throw new InvalidArgumentException('The provided condition must be a callable or boolean.');

tests/Validation/ValidationExcludeIfTest.php

@@ -39,7 +39,7 @@ public function testItOnlyCallableAndBooleanAreAcceptableArgumentsOfTheRule()
         new ExcludeIf(true);
         new ExcludeIf(fn () => true);
 
-        foreach ([1, 1.1, 'foobar', new stdClass] as $condition) {
+        foreach ([1, 1.1, 'phpinfo', new stdClass] as $condition) {
             try {
                 new ExcludeIf($condition);
                 $this->fail('The ExcludeIf constructor must not accept '.gettype($condition));