<?php
$url = 'https://www.r10.net/dersler/63574-php-ile-veri-cekmek-2.html';
echo 'Normal URL: '.$url.'<br>';
echo 'Encode URL: '.urlencode($url).'<br>';
echo 'Decode URL: '.urldecode(urlencode($url));
#Çıktı:
#Normal URL: https://www.r10.net/dersler/63574-php-ile-veri-cekmek-2.html
#Encode URL: http%3A%2F%2Fwww.r10.net%2Fdersler%2F63574-php-ile-veri-cekmek-2.html
#Decode URL: https://www.r10.net/dersler/63574-php-ile-veri-cekmek-2.html 
?>