Update swoole_table examples (#4357)

examples/table/server.php

@@ -6,7 +6,7 @@
 $table->create();
 
 $serv = new swoole_server('127.0.0.1', 9501);
-$serv->set(['dispatch_mode' => 1]);
+$serv->set(['dispatch_mode' => 2]);
 $serv->table = $table;
 
 $serv->on('connect', function($serv, $fd, $reactor_id){

examples/table/simulation.php

@@ -1,6 +1,6 @@
 <?php
 /**
- * The script is used for simulating the usage of swoole_table() and guaranting its usability.
+ * The script is used for simulating the usage of swoole_table() and guarantying its usability.
  */
 $table = new swoole_table(1024);
 $table->column('name', swoole_table::TYPE_STRING, 64);

examples/table/usage.php

@@ -0,0 +1,13 @@
+<?php
+$table = new swoole_table(1024);
+$table->column('id', swoole_table::TYPE_INT);
+$table->column('name', swoole_table::TYPE_STRING, 64);
+$table->column('num', swoole_table::TYPE_FLOAT);
+$table->create();
+
+$table->set('a', array('id' => 1, 'name' => 'swoole-co-uk', 'num' => 3.1415));
+$table->set('b', array('id' => 2, 'name' => "swoole-uk", 'num' => 3.1415));
+$table->set('hello@swoole.co.uk', array('id' => 3, 'name' => 'swoole', 'num' => 3.1415));
+
+var_dump($table->get('a'));
+var_dump($table->get('b', 'name'));