update examples

examples/dispatcher_loop.php

@@ -59,7 +59,7 @@ class EventsListener implements Countable
 }
 
 // Attach our callable class to the dispatcher.
-$dispatcher->attachCallback('events', ($events = new EventsListener()));
+$dispatcher->attachCallback('events', $events = new EventsListener());
 
 // Attach a function to control the dispatcher loop termination with a message.
 $dispatcher->attachCallback('control', function ($payload, $dispatcher) {

examples/executing_redis_commands.php

@@ -18,7 +18,8 @@ $client = new Predis\Client($single_server);
 $client->set('library', 'predis');
 $response = $client->get('library');
 
-var_export($response); echo PHP_EOL;
+var_export($response);
+echo PHP_EOL;
 /* OUTPUT: 'predis' */
 
 // Redis has the MSET and MGET commands to set or get multiple keys in one go,
@@ -33,7 +34,8 @@ $mkv = [
 $client->mset($mkv);
 $response = $client->mget(array_keys($mkv));
 
-var_export($response); echo PHP_EOL;
+var_export($response);
+echo PHP_EOL;
 /* OUTPUT:
 array (
   0 => '1st user',
@@ -49,7 +51,8 @@ $response = $client->executeRaw([
     'MGET', 'uid:0001', 'uid:0002', 'uid:0003',
 ]);
 
-var_export($response); echo PHP_EOL;
+var_export($response);
+echo PHP_EOL;
 /* OUTPUT:
 array (
   0 => '1st user',

examples/replication_complex.php

@@ -30,7 +30,7 @@ use Predis\Replication\ReplicationStrategy;
 
 class HashMultipleGetAll extends ScriptCommand
 {
-    const BODY = <<<LUA
+    public const BODY = <<<LUA
 local hashes = {}
 for _, key in pairs(KEYS) do
     table.insert(hashes, key)

examples/session_handler.php

@@ -26,7 +26,7 @@ require __DIR__ . '/shared.php';
 //
 
 if (!interface_exists('SessionHandlerInterface')) {
-    die('ATTENTION: the session handler implemented by Predis requires PHP >= 5.4.0 ' .
+    exit('ATTENTION: the session handler implemented by Predis requires PHP >= 5.4.0 ' .
         "or a polyfill for SessionHandlerInterface provided by an external package.\n");
 }
 

examples/shared.php

@@ -11,7 +11,7 @@
  */
 
 if (PHP_SAPI !== 'cli') {
-    die('Example scripts are meant to be executed locally via CLI.');
+    exit('Example scripts are meant to be executed locally via CLI.');
 }
 
 require __DIR__ . '/../autoload.php';