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IDProjectCategoryView StatusDate SubmittedLast Update
20481Bug reportsOtherpublic2026-04-10 18:242026-04-10 18:26
ReporterDenisChenu Assigned To 
PrioritynoneSeverityminor 
Status newResolutionopen 
Summary20481: debug=2 : Implicitly marking parameter $data as nullable is deprecated
Description

When log in in and when using KCFinder with PHP 8.4.19 get Implicitly marking parameter $data as nullable is deprecated

Steps To Reproduce

Steps to reproduce

Get a PHP 8.4.19
Activate debug=2
Login
Go to navigate server in KXCFInder

Expected result

Navigate

Actual result

Error page

TagsNo tags attached.
Attached Files
Capture d’écran du 2026-04-10 18-11-18.png (194,571 bytes)
PHP error.html (7,763 bytes)    
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<title>PHP error</title>

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<body>
<div class="container">
	<h1>PHP error</h1>

	<p class="message">
		kcfinder\browser::errorMsg(): Implicitly marking parameter $data as 
nullable is deprecated, the explicit nullable type must be used instead	</p>

	<div class="source">
		<p class="file">/media/shnoulle/data/www/6/vendor/kcfinder/core/class/browser.php(910)</p>
		<div class="code"><pre><span class="ln">898</span>         if ($template === null)
<span class="ln">899</span>             $template = $this-&gt;action;
<span class="ln">900</span> 
<span class="ln">901</span>         if (file_exists("tpl/tpl_$template.php")) {
<span class="ln">902</span>             ob_start();
<span class="ln">903</span>             require "tpl/tpl_$template.php";
<span class="ln">904</span>             return ob_get_clean();
<span class="ln">905</span>         }
<span class="ln">906</span> 
<span class="ln">907</span>         return "";
<span class="ln">908</span>     }
<span class="ln">909</span> 
<span class="error"><span class="ln error-ln">910</span>     protected function errorMsg($message, array $data=null) {
</span><span class="ln">911</span>         if (in_array($this-&gt;action, array("thumb", "upload", "download", "downloadDir")))
<span class="ln">912</span>             die($this-&gt;label($message, $data));
<span class="ln">913</span>         if (($this-&gt;action === null) || ($this-&gt;action == "browser"))
<span class="ln">914</span>             $this-&gt;backMsg($message, $data);
<span class="ln">915</span>         else {
<span class="ln">916</span>             $message = $this-&gt;label($message, $data);
<span class="ln">917</span>             die(json_encode(array('error' =&gt; $message)));
<span class="ln">918</span>         }
<span class="ln">919</span>     }
<span class="ln">920</span> 
<span class="ln">921</span>     protected function htmlData($str) {
<span class="ln">922</span>         return htmlentities((string) $str, null, strtoupper($this-&gt;charset));
</pre></div>	</div>

	<div class="traces">
		<h2>Stack Trace</h2>
				<table style="width:100%;">
						<tbody><tr class="trace app expanded">
			<td class="number">
				#0			</td>
			<td class="content">
				<div class="trace-file">
											<div class="plus">+</div>
						<div class="minus">–</div>
										&nbsp;/media/shnoulle/data/www/6/vendor/kcfinder/core/autoload.php(28): <strong>require</strong>("/media/shnoulle/data/www/6/vendor/yiisoft/yii/framework/base/CAp...")				</div>

				<div class="code"><pre><span class="ln">23</span>     if ($ns == "kcfinder") {
<span class="ln">24</span>         $class = preg_replace("/[^_a-zA-Z0-9]/", "", $class);
<span class="ln">25</span>         if ($class == "uploader")
<span class="ln">26</span>             require "core/class/uploader.php";
<span class="ln">27</span>         elseif ($class == "browser")
<span class="error"><span class="ln error-ln">28</span>             require "core/class/browser.php";
</span><span class="ln">29</span>         elseif ($class == "minifier")
<span class="ln">30</span>             require "core/class/minifier.php";
<span class="ln">31</span> 
<span class="ln">32</span>         elseif (file_exists("core/types/$class.php"))
<span class="ln">33</span>             require "core/types/$class.php";
</pre></div>			</td>
		</tr>
						<tr class="trace app expanded">
			<td class="number">
				#1			</td>
			<td class="content">
				<div class="trace-file">
											<div class="plus">+</div>
						<div class="minus">–</div>
										&nbsp;/media/shnoulle/data/www/6/vendor/kcfinder/browse.php(17): <strong>{closure:/media/shnoulle/data/www/6/vendor/kcfinder/core/autoload.php:15}</strong>(array("kcfinder", "browser"))				</div>

				<div class="code"><pre><span class="ln">12</span>   *      @link http://kcfinder.sunhater.com
<span class="ln">13</span>   */
<span class="ln">14</span> 
<span class="ln">15</span> require "core/bootstrap.php";
<span class="ln">16</span> $browser = "kcfinder\\browser"; // To execute core/bootstrap.php on older
<span class="error"><span class="ln error-ln">17</span> $browser = new $browser();      // PHP versions (even PHP 4)
</span><span class="ln">18</span> $browser-&gt;action();
<span class="ln">19</span> 
<span class="ln">20</span> ?&gt;</pre></div>			</td>
		</tr>
				</tbody></table>
	</div>

	<div class="version">
		2026-04-10 16:19:08 nginx/1.26.3 <a href="https://www.yiiframework.com/">Yii Framework</a>/1.1.32	</div>
</div>

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</body></html>
PHP error.html (7,763 bytes)   
Bug heat2
Complete LimeSurvey version number (& build)6.16.16
I will donate to the project if issue is resolvedNo
Browsernot relevant
Database type & versionmariadb
Server OS (if known)debian
Webserver software & version (if known)nginx
PHP Version8.4.19

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Activities

DenisChenu

DenisChenu

2026-04-10 18:26

developer   ~84602

https://www.php.net/manual/en/migration84.deprecated.php

Issue History

Date Modified Username Field Change
2026-04-10 18:24 DenisChenu New Issue
2026-04-10 18:24 DenisChenu File Added: Capture d’écran du 2026-04-10 18-11-18.png
2026-04-10 18:24 DenisChenu File Added: PHP error.html
2026-04-10 18:26 DenisChenu Note Added: 84602
2026-04-10 18:26 DenisChenu Bug heat 0 => 2