grapheme_strpos

• Optional parameter added - #4: string $locale = ""

 grapheme_strpos(
     string $haystack,
     string $needle,
-    int $offset = 0
+    int $offset = 0,
+    string $locale = ""
   ): int|false

• Return type added: int|false
• Parameter type added for parameter #1 ($haystack): string
• Parameter type added for parameter #2 ($needle): string
• Parameter type added for parameter #3 ($offset): int
• Parameter default value added for position #3 ($offset): 0

  grapheme_strpos(
-     $haystack,
+     string $haystack,
-     $needle,
+     string $needle,
-     $offset
+     int $offset = 0
-   )
+   ): int|false