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@ 2020-06-13T14:19:05Z

<?php

$html = <<<HTML
<div>
   Vがある<br>
   <div id="body-top" class="content-moki clearfix">
       Vがある<br>
       <span class="headline">
           <br>
           にモデル「V」を入れると、プレビューでエンベットが崩れる<br>
           <br>
           <div class="oembed  oembed-type-instagram" data-oembed-medialink="https://www.instagram.com/p/B5mtrL3p3XV/" style="margin:10px auto;max-width: 500px;" data-oembed-url="https://api.instagram.com/oembed/?url=https%3A%2F%2Fwww.instagram.com%2Fp%2FB5mtrL3p3XV&format=json&maxwidth=500&width=1" data-oembed-id="B5mtrL3p3XV" data-oembed-options='{"maxwidth":"500","width":true}'>
               <figure class="moki-embed-instagram">
                   <img src="https://instagram.com/p/B5mtrL3p3XV/media/?size=l">
                   <figcaption>
                       <i class="fa fa-instagram icon"></i>
                   </figcaption>
               </figure>
               Vがある
           </div>
           <br>a 
        </span>
        V...
    </div>
</div>
HTML;

$needle = 'V';
$replace = '@CHANGE@';

libxml_use_internal_errors(true);
$dom = new DOMDocument('1.0', 'utf-8'); 
$dom->loadHTML(mb_convert_encoding($html, 'HTML-ENTITIES', 'UTF-8'), LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
$xpath = new DOMXPath($dom);
foreach ($xpath->query("//div[contains(@class, 'oembed')]/text()[contains(.,'$needle')]") as $node) {
    $node->nodeValue = str_replace($needle, $replace, $node->nodeValue);
}
echo $dom->saveXML($dom->documentElement);

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: mb_convert_encoding(): Handling HTML entities via mbstring is deprecated; use htmlspecialchars, htmlentities, or mb_encode_numericentity/mb_decode_numericentity instead in /in/es0JC on line 33 <div> Vがある<br/> <div id="body-top" class="content-moki clearfix"> Vがある<br/> <span class="headline"> <br/> にモデル「V」を入れると、プレビューでエンベットが崩れる<br/> <br/> <div class="oembed oembed-type-instagram" data-oembed-medialink="https://www.instagram.com/p/B5mtrL3p3XV/" style="margin:10px auto;max-width: 500px;" data-oembed-url="https://api.instagram.com/oembed/?url=https%3A%2F%2Fwww.instagram.com%2Fp%2FB5mtrL3p3XV&format=json&maxwidth=500&width=1" data-oembed-id="B5mtrL3p3XV" data-oembed-options="{"maxwidth":"500","width":true}"> <figure class="moki-embed-instagram"> <img src="https://instagram.com/p/B5mtrL3p3XV/media/?size=l"/> <figcaption> <i class="fa fa-instagram icon"/> </figcaption> </figure> @CHANGE@がある </div> <br/>a </span> V... </div> </div>

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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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