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@ 2018-02-12T15:09:53Z

<?php

function a($strUrl) {
	$strUrl = explode('/', $strUrl, 4);
	$strUrl[3] = rawurlencode($strUrl[3]);
	$strUrl[3] = str_replace(array('%2F', '%3F', '%3D', '%26', '%25'), array('/', '?', '=', '&', '%'), $strUrl[3]);
	$strUrl = implode('/', $strUrl);
	$strUrl = str_replace('&', '&amp;', $strUrl);

	return $strUrl;
}

function b($strUrl) {
    return htmlspecialchars($strUrl, ENT_XML1, 'UTF-8');
}

$urls = array(
    'http://www.example.com/',
    'http://www.example.com/alias',
    'http://www.example.com/alias.html',
    'http://www.example.com/alias/page?foo=bar',
    'http://www.example.com/alias?foo=bar&bar=foo',
    'http://www.example.com:8080/alias',
    'http://www.example.com:8080/alias?foo=bar&bar[bar]=foo',
    'http://www.example.com/älias',
);

foreach ($urls as $url) {
    if (a($url) === b($url)) {
        echo "✓\n";
        echo $url."\n";
    } else {
        echo "✘\n";
        echo $url."\n";
        echo a($url)."\n";
        echo b($url)."\n";
    }
    
    echo "\n";
}

Output for git.master, git.master_jit, rfc.property-hooks: ✓ http://www.example.com/ ✓ http://www.example.com/alias ✓ http://www.example.com/alias.html ✓ http://www.example.com/alias/page?foo=bar ✓ http://www.example.com/alias?foo=bar&bar=foo ✓ http://www.example.com:8080/alias ✘ http://www.example.com:8080/alias?foo=bar&bar[bar]=foo http://www.example.com:8080/alias?foo=bar&bar%5Bbar%5D=foo http://www.example.com:8080/alias?foo=bar&bar[bar]=foo ✘ http://www.example.com/älias http://www.example.com/%C3%A4lias http://www.example.com/älias

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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