laravel
diff --git a/‎src/Illuminate/Collections/Collection.php
+7-2 b/‎src/Illuminate/Collections/Collection.php
+7-2
diff --git a/‎tests/Support/SupportCollectionTest.php
+4 b/‎tests/Support/SupportCollectionTest.php
+4
@@ -712,12 +712,17 @@ public function isEmpty()
     }
 
     /**
-     * Determine if the collection contains a single item.
+     * Determine if the collection contains exactly one item. If a callback is provided, it checks if exactly one item matches the condition.
      *
+     * @param  (callable(TValue, TKey): bool)|null  $callback
      * @return bool
      */
-    public function containsOneItem()
+    public function containsOneItem(?callable $callback = null): bool
     {
+        if ($callback) {
+            return $this->filter($callback)->count() === 1;
+        }
+
         return $this->count() === 1;
     }
 
 
@@ -838,6 +838,10 @@ public function testContainsOneItem($collection)
         $this->assertFalse((new $collection([]))->containsOneItem());
         $this->assertTrue((new $collection([1]))->containsOneItem());
         $this->assertFalse((new $collection([1, 2]))->containsOneItem());
+
+        $this->assertFalse(collect([1, 2, 2])->containsOneItem(fn ($number) => $number === 2));
+        $this->assertTrue(collect(['ant', 'bear', 'cat'])->containsOneItem(fn ($word) => strlen($word) === 4));
+        $this->assertFalse(collect(['ant', 'bear', 'cat'])->containsOneItem(fn ($word) => strlen($word) > 4));
     }
 
     public function testIterable()
Original file line number	Diff line number	Diff line change
`@@ -712,12 +712,17 @@ public function isEmpty()`
`712`	`712`	`}`
`713`	`713`
`714`	`714`	`/**`
`715`		`- * Determine if the collection contains a single item.`
	`715`	`+ * Determine if the collection contains exactly one item. If a callback is provided, it checks if exactly one item matches the condition.`
`716`	`716`	`*`
	`717`	`+ * @param (callable(TValue, TKey): bool)\|null $callback`
`717`	`718`	`* @return bool`
`718`	`719`	`*/`
`719`		`- public function containsOneItem()`
	`720`	`+ public function containsOneItem(?callable $callback = null): bool`
`720`	`721`	`{`
	`722`	`+ if ($callback) {`
	`723`	`+ return $this->filter($callback)->count() === 1;`
	`724`	`+ }`
	`725`	`+`
`721`	`726`	`return $this->count() === 1;`
`722`	`727`	`}`
`723`	`728`