<?php
$photo_path = "https://pbs.twimg.com/profile_images/666216653361774594/DLnkPeuD_mini.png";
$original_photo = explode('_', $photo_path);
$last = $original_photo[count($original_photo) - 1];
$ext = explode('.', $last);
$new_path = str_replace('_' . $ext[0], '', $photo_path);
echo "resized photo: \t\t" . $photo_path;
echo "\n\n";
echo "original photo: \t" . $new_path;