- (BOOL)application:(UIApplication *)application
 didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
 if ([application respondsToSelector:@selector(registerUserNotificationSettings:)]) {
  NSLog(@"Requesting permission for push notifications..."); // iOS 8
  UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:
   UIUserNotificationTypeAlert | UIUserNotificationTypeBadge |
   UIUserNotificationTypeSound categories:nil];
  [UIApplication.sharedApplication registerUserNotificationSettings:settings];
 } else {
  NSLog(@"Registering device for push notifications..."); // iOS 7 and earlier
  [UIApplication.sharedApplication registerForRemoteNotificationTypes:
   UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeBadge |
   UIRemoteNotificationTypeSound];
 }
 return YES;
}

- (void)application:(UIApplication *)application
 didRegisterUserNotificationSettings:(UIUserNotificationSettings *)settings
{
 NSLog(@"Registering device for push notifications..."); // iOS 8
 [application registerForRemoteNotifications];
}

- (void)application:(UIApplication *)application
 didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)token
{
 NSLog(@"Registration successful, bundle identifier: %@, mode: %@, device token: %@",
  [NSBundle.mainBundle bundleIdentifier], [self modeString], token);
}

- (void)application:(UIApplication *)application
 didFailToRegisterForRemoteNotificationsWithError:(NSError *)error
{
 NSLog(@"Failed to register: %@", error);
}

- (void)application:(UIApplication *)application handleActionWithIdentifier:(NSString *)identifier
 forRemoteNotification:(NSDictionary *)notification completionHandler:(void(^)())completionHandler
{
 NSLog(@"Received push notification: %@, identifier: %@", notification, identifier); // iOS 8
 completionHandler();
}

- (void)application:(UIApplication *)application
 didReceiveRemoteNotification:(NSDictionary *)notification
{
 NSLog(@"Received push notification: %@", notification); // iOS 7 and earlier
}

- (NSString *)modeString
{
#if DEBUG
 return @"Development (sandbox)";
#else
 return @"Production";
#endif
}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
 //...
 NSDictionary *payload = [launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];
 if (payload) {
  //...
 }
 //...
}

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)payload {
 NSLog(@"remote notification: %@",[payload description]);
 NSString* alertStr = nil;  
 NSDictionary *apsInfo = [payload objectForKey:@"aps"]; 
 NSObject *alert = [apsInfo objectForKey:@"alert"]; 
 if ([alert isKindOfClass:[NSString class]]) 
 {  
  alertStr = (NSString*)alert; 
 } 
 else if ([alert isKindOfClass:[NSDictionary class]]) 
 {  
  NSDictionary* alertDict = (NSDictionary*)alert;  
  alertStr = [alertDict objectForKey:@"body"]; 
 }  
 application.applicationIconBadgeNumber = [[apsInfo objectForKey:@"badge"] integerValue];  
 if ([application applicationState] == UIApplicationStateActive && alertStr != nil) 
 {
  UIAlertView* alertView = [[UIAlertView alloc] initWithTitle:@"Pushed Message" message:alertStr delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
  [alertView show]; 
 }
}

{
　　"aps" : {"alert" : "This is the alert text", "badge" : 1, "sound" :"default" },

　　"server" : {"serverId" : 1, "name" : "Server name"}
}

<?php
// devicetoken
 $deviceToken = '你的deviceToken';
// 私钥密码，生成pem的时候输入的
$passphrase = '123456';
// 定制推送内容，有一点的格式要求，详情Apple文档
$message = array(
 'body'=>'你收到一个新订单'
);
$body['aps'] = array(
 'alert' => $message,
 'sound' => 'default',
 'badge' => 100,
 );
$body['type']=3;
$body['msg_type']=4;
$body['title']='新订单提醒';
$body['msg']='你收到一个新消息';

$ctx = stream_context_create();
stream_context_set_option($ctx, 'ssl', 'local_cert', 'push.pem');//记得把生成的push.pem放在和这个php文件同一个目录
stream_context_set_option($ctx, 'ssl', 'passphrase', $passphrase);
$fp = stream_socket_client(
 //这里需要特别注意，一个是开发推送的沙箱环境，一个是发布推送的正式环境，deviceToken是不通用的
 'ssl://gateway.sandbox.push.apple.com:2195', $err,
 //'ssl://gateway.push.apple.com:2195', $err,
 $errstr, 60, STREAM_CLIENT_CONNECT|STREAM_CLIENT_PERSISTENT, $ctx);
if (!$fp)
 exit("Failed to connect: $err $errstr" . PHP_EOL);
echo 'Connected to APNS' . PHP_EOL;
$payload = json_encode($body);
$msg = chr(0) . pack('n', 32) . pack('H*', $deviceToken) . pack('n', strlen($payload)) . $payload;
$result = fwrite($fp, $msg, strlen($msg));
if (!$result)
 echo 'Message not delivered' . PHP_EOL;
else
 echo 'Message successfully delivered' . PHP_EOL;
fclose($fp);
?>

superdanny@SuperDannydeMacBook-Pro$ php push.php 

Connected to APNS
Message successfully delivered