php command line argument parament

md5.txt

+#! /usr/bin/php
+<?php
+
+// print("md5 utility by SNA \n")
+
+print_r($argv):
+
+if (count($argv) !=2) {
+    die("Usage: md5 \"<string\"\n"):
+}
+
+print(md5($argv[1])):
\ No newline at end of file