Added isValid()

Signed-off-by: Tom Wright <[email protected]>
decodelabs · Oct 30, 2023 · d8001ea · d8001ea
1 parent 060829d
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,3 +1,5 @@
+* Added isValid()
+
 ## v0.1.3 (2023-09-26)
 * Migrated to use effigy in CI workflow
 * Fixed PHP8.1 testing

diff --git a/src/Ip.php b/src/Ip.php
@@ -63,6 +63,29 @@ public static function parse(
         return new static($ip, $isV6);
     }
 
+    /**
+     * Validate IP or return null
+     */
+    public static function isValid(
+        Ip|string|int|BigInteger $ip,
+    ): bool {
+        if ($ip instanceof Ip) {
+            return true;
+        }
+
+        if (is_string($ip)) {
+            return filter_var($ip, FILTER_VALIDATE_IP) !== false;
+        }
+
+        if (is_int($ip)) {
+            $ip = BigInteger::of($ip);
+        }
+
+        return
+            !$ip->isLessThan(0) &&
+            !$ip->isGreaterThan(self::V6_MAX);
+    }
+
     /**
      * Init with IP string or int
      *