From 5d9f0785bd256533037120489d9f769c67f40ee2 Mon Sep 17 00:00:00 2001
From: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Date: Fri, 18 Jul 2025 06:37:31 +0000
Subject: [PATCH] Refactor for PHP 8.4 compatibility: Add explicit nullable
 type declarations

- Fix implicitly nullable parameters in PhpSIP constructor
- Add nullable type hints to setContentType() and setCallId() methods
- Addresses PHP 8.4 deprecation of implicitly nullable parameters
- All syntax validated with PHP 8.4.10
- Preserves existing functionality and API compatibility

Co-Authored-By: devin@siptools.org <git@ssl7.net>
---
 PhpSIP.class.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/PhpSIP.class.php b/PhpSIP.class.php
index 804547d..32ad703 100644
--- a/PhpSIP.class.php
+++ b/PhpSIP.class.php
@@ -240,7 +240,7 @@ class PhpSIP
    * 
    * @param $src_ip Ip address to bind (optional)
    */
-  public function __construct($src_ip = null, $src_port = null, $fr_timer = null)
+  public function __construct(?string $src_ip = null, ?int $src_port = null, ?int $fr_timer = null)
   {
     if (!function_exists('socket_create'))
     {
@@ -1328,7 +1328,7 @@ public function setBody($body)
   /**
    * Sets Content Type
    */
-  public function setContentType($content_type = null)
+  public function setContentType(?string $content_type = null)
   {
     if ($content_type !== null)
     {
@@ -1394,7 +1394,7 @@ public function setCseq($v)
    * 
    * @param string $v
    */
-  public function setCallId($v = null)
+  public function setCallId(?string $v = null)
   {
     if ($v)
     {