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@ 2020-02-04T22:53:10Z

<?php

$html = <<<HTML
<div>
<img src="/relative/url/img.jpg" />
<form action="/"></form>
<form action="/contact-us/"></form>
<a href='/relative/url/'>Note the Single Quote</a>
<img src="//example.com/protocol-relative-img.jpg" />
</div>
HTML;

$domain = '//example.com';
$targets = [
    "//img[not(starts-with(@src, '//'))]",
    "//form[not(starts-with(@action, '//'))]",
    "//a[not(starts-with(@href, '//'))]"
];

$dom = new DOMDocument; 
$dom->loadHTML($html, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
$xpath = new DOMXPath($dom);
foreach ($xpath->query(implode('|', $targets)) as $node) {
    if ($src = $node->getAttribute('src')) {
        $node->setAttribute('src', $domain . $src);
    } elseif ($action = $node->getAttribute('action')) {
        $node->setAttribute('action', $domain . $action);
    } else {
        $node->setAttribute('href', $domain . $node->getAttribute('href'));
    }
}
echo $dom->saveHTML();

Output for git.master, git.master_jit, rfc.property-hooks: <div> <img src="//example.com/relative/url/img.jpg"> <form action="//example.com/"></form> <form action="//example.com/contact-us/"></form> <a href="//example.com/relative/url/">Note the Single Quote</a> <img src="//example.com/protocol-relative-img.jpg"> </div>

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Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

2022-12-01 RFC: Property hooks - included in PHP 8.4
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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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