MT#3925 Add example PHP API client to sandbox

sandbox/api_auth.php

@@ -0,0 +1,20 @@
+<?php
+$ua = curl_init();
+$options = array( 
+    CURLOPT_SSLCERT => '/etc/ssl/ngcp/api/NGCP-API-client-certificate-1385650532.pem',
+    CURLOPT_SSLKEY  => '/etc/ssl/ngcp/api/NGCP-API-client-certificate-1385650532.pem',
+    CURLOPT_CAINFO => '/etc/ssl/ngcp/api/ca-cert.pem',
+    CURLOPT_SSL_VERIFYPEER => true,
+    CURLOPT_RETURNTRANSFER => true,
+);
+curl_setopt_array($ua , $options);
+
+curl_setopt($ua, CURLOPT_URL, 'https://serenity:4443/api/contacts/?id=10');
+$res = curl_exec($ua);
+if(!$res) {
+    echo "Curl Error : " . curl_error($ua);
+}
+else {
+    echo $res;
+}
+?>