- var_dump: documentation ( source)
- str_replace: documentation ( source)
<?php
$string = "https://connect.framaz.eu/productpdf/NL/HALLA/ELUMI/H.13-250K-1V1UEE";
$string = str_replace("?", "%3F", str_replace(".", "%2E", $string));
$no_good = array(".", ";", "+");
$string = str_replace($no_good, "", $string);
var_Dump($string);