Adding UrlSearchParams::uniqueKeyCount method

CHANGELOG.md

@@ -2,6 +2,24 @@
 
 All Notable changes to `League\Uri\Components` will be documented in this file
 
+## [Next](https://github.com/thephpleague/uri-components/compare/7.4.1...master) - TBD
+
+### Added
+
+- `UrlSearchParams::uniqueKeyCount`
+
+### Fixed
+
+- None
+
+### Deprecated
+
+- None
+
+### Removed
+
+- None
+
 ## [7.4.1](https://github.com/thephpleague/uri-components/compare/7.4.0...7.4.1) - 2024-02-23
 
 ### Added

Components/HierarchicalPath.php

@@ -111,8 +111,7 @@ public static function fromAbsolute(string ...$segments): self
      */
     private static function fromSegments(int $pathType, array $segments): self
     {
-        $pathSegments = array_map(fn (Stringable|string $segment): string => (string) $segment, $segments);
-        $path = implode(self::SEPARATOR, $pathSegments);
+        $path = implode(self::SEPARATOR, $segments);
 
         return match (true) {
             self::IS_RELATIVE === $pathType => new self(ltrim($path, self::SEPARATOR)),

Components/URLSearchParams.php

@@ -375,6 +375,18 @@ public function isEmpty(): bool
         return 0 === $this->size();
     }
 
+    /**
+     * Returns the total number of distinct search parameter keys.
+     */
+    public function uniqueKeyCount(): int
+    {
+        return count(
+            array_count_values(
+                array_column([...$this->pairs], 0)
+            )
+        );
+    }
+
     /**
      * Returns the total number of search parameter entries.
      */

Components/URLSearchParamsTest.php

@@ -630,18 +630,22 @@ public function testSizeWithDeletionMethodAndBehaviour(): void
         self::assertCount(3, $params);
         self::assertTrue($params->isNotEmpty());
         self::assertFalse($params->isEmpty());
+        self::assertSame(2, $params->uniqueKeyCount());
 
         $params->delete('a');
         self::assertCount(1, $params);
+        self::assertSame(1, $params->uniqueKeyCount());
     }
 
     public function testSizeWithAdditionMethodAndBehaviour(): void
     {
         $params = new URLSearchParams('a=1&b=2&a=3');
         self::assertCount(3, $params);
+        self::assertSame(2, $params->uniqueKeyCount());
 
         $params->append('b', '4');
         self::assertCount(4, $params);
+        self::assertSame(2, $params->uniqueKeyCount());
     }
 
     public function testSizeWithEmptyInstance(): void
@@ -650,6 +654,7 @@ public function testSizeWithEmptyInstance(): void
         self::assertCount(0, $params);
         self::assertFalse($params->isNotEmpty());
         self::assertTrue($params->isEmpty());
+        self::assertSame(0, $params->uniqueKeyCount());
     }
 
     public function testBasicHasMethod(): void