guzzle-bug-strip.php

<?php
include "vendor/autoload.php";

$url = 'https://github.com?abc';
$client = new Guzzle\Http\Client();
$req = $client->get($url);

var_dump("The url we are looking for: $url");
var_dump("The url after parsing: " . $req->getUrl(false));

if($url !== $req->getUrl(false)){
    echo "URL has been broken during parsing\n";
} else {
    echo "All is good\n";
}


$url = \Guzzle\Http\Url::factory('https://github.com');
$url->setQuery([100 => \Guzzle\Http\QueryString::BLANK]);
var_dump('Url before sending: ' . $url);

$req = $client->get($url);
var_dump('Url after sending: ' . $req->send()->getEffectiveUrl());

if((string)$url !== $req->getResponse()->getEffectiveUrl()){
    echo "URL has been changed when sending request!\n";
} else {
    echo "All is good\n";
}

OUTPUT

string(50) "The url we are looking for: https://github.com?abc"
string(46) "The url after parsing: https://github.com?abc="
URL has been broken during parsing
string(42) "Url before sending: https://github.com?100"
string(42) "Url after sending: https://github.com?100="
URL has been changed when sending request!