- strstr: documentation ( source)
- explode: documentation ( source)
<?php
echo $adres="pl/blog/2016/11/08/raiffeisen-polbank-mobilny-portfel/";
echo "\n";
echo strstr($adres, "blog");
echo "\n";
$url=explode("/", $adres);
$size=count($url);
echo $size;
echo "\n";
echo $url[$size-2];