Added vendor/ directory for Composer's installed files

vendor/alexgarrett/violin/examples/messages/placeholders/placeholders_all.php

@@ -0,0 +1,31 @@
+<?php
+
+/**
+ * Violin example. Message placeholders.
+ * 
+ * Shows how you can output all arguments as a comma seperated list,
+ * if you have a variable amount of arguments for a rule.
+ */
+
+require '../../../vendor/autoload.php';
+
+use Violin\Violin;
+
+$v = new Violin;
+
+$v->addRuleMessage('isoneof', '{field} must be one of {$*}');
+
+$v->addRule('isoneof', function($value, $input, $args) {
+    $value = trim($value);
+    return in_array($value, $args);
+});
+
+$v->validate([
+    'age'  => ['sheep', 'required|isoneof(apples, pears)']
+]);
+
+if ($v->passes()) {
+    // Passed
+} else {
+    var_dump($v->errors()->all());
+}