add examples

examples/idle.php

@@ -0,0 +1,19 @@
+<?php
+$loop = uv_default_loop();
+$idle = uv_idle_init();
+
+$i = 0;
+uv_idle_start($idle, function($stat) use (&$i, $idle, $loop){
+    echo "count: {$i}" . PHP_EOL;
+    $i++;
+    
+    if ($i > 3) {
+        uv_idle_stop($idle);
+        uv_unref($loop);
+    }
+    sleep(1);
+});
+
+uv_run();
+
+echo "finished";

examples/request.php

@@ -0,0 +1,25 @@
+<?php
+$tcp = uv_tcp_init();
+$address = uv_ip4_addr("173.194.38.65","80");
+
+uv_tcp_connect($tcp, $address, function($stat, $client){
+    $request = <<<EOF
+GET / HTTP/1.0
+Host: google.com
+
+
+EOF;
+    uv_write($client,$request,function($stat, $client){
+        if ($stat == 0) {
+            uv_read_start($client,function($buffer, $client){
+                var_dump($buffer);
+                uv_close($client,function(){
+                });
+            });
+        } else {
+            uv_close($client,function(){});
+        }
+    });
+});
+
+uv_run();

examples/run_once.php

@@ -0,0 +1,7 @@
+<?php
+$idle = uv_idle_init();
+uv_idle_start($idle, function(){
+    echo "Hello";
+});
+
+uv_run_once();