Factor out a usage() function

[tweeper.git] / tweeper.php

diff --git a/tweeper.php b/tweeper.php
index 7fc98cb..38e77f9 100755 (executable)
--- a/tweeper.php
+++ b/tweeper.php
@@ -73,17 +73,22 @@ class Tweeper {
   }
 }
 
+function usage($argv)
+{
+  if (php_sapi_name() != 'cli')
+    $usage = htmlentities("{$_SERVER['SCRIPT_NAME']}?screen_name=<screen_name>");
+  else
+    $usage = "{$argv[0]} <screen_name>\n";
+
+  return "usage: $usage";
+}
+
 if (isset($_GET['screen_name'])) {
   $screen_name = $_GET['screen_name'];
 } else if (isset($argv[1])) {
   $screen_name = $argv[1];
 } else {
-  if (isset($_SERVER['SCRIPT_NAME']))
-    $usage = htmlentities("{$_SERVER['SCRIPT_NAME']}?screen_name=<screen_name>");
-  else
-    $usage = "{$argv[0]} <screen_name>\n";
-
-  die("usage: $usage");
+  die(usage($argv));
 }
 
 $tweeper = new Tweeper('twitter_user_timeline2rss.xsl');