Add vendor and .env to make usable

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ShellExec.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace PhpParser\Node\Expr;
+
+use PhpParser\Node\Expr;
+
+class ShellExec extends Expr
+{
+    /** @var array Encapsed string array */
+    public $parts;
+
+    /**
+     * Constructs a shell exec (backtick) node.
+     *
+     * @param array $parts      Encapsed string array
+     * @param array $attributes Additional attributes
+     */
+    public function __construct(array $parts, array $attributes = array()) {
+        parent::__construct($attributes);
+        $this->parts = $parts;
+    }
+
+    public function getSubNodeNames() {
+        return array('parts');
+    }
+}