Migrated first 6 gists.

whoami.php/README.md

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+Testing things...

whoami.php/whoami.php

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+<?php
+echo '<pre>';
+
+// Outputs all the result of shellcommand "ls", and returns
+// the last output line into $last_line. Stores the return value
+// of the shell command in $retval.
+$last_line = system('whoami', $retval);
+
+// Printing additional info
+echo '
+</pre>
+<hr />Last line of the output: ' . $last_line . '
+<hr />Return value: ' . $retval;
+?>