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<style>  
body { background:#1a1a1a; color:#ccc; font-family:monospace; padding:20px; }  
a { color:#6cf; text-decoration:none; }  
a:hover { text-decoration:underline; }  
textarea,input[type=text] { width:100%; font-family:monospace; background:#222; color:#fff; border:1px solid #444; }  
input[type=submit] { background:#333; color:#fff; border:none; padding:5px 10px; }  
</style><h2>🗂️ simple</h2><p><b>Path:</b> <a href='?path=%2Fbig%2F'>big</a>/<a href='?path=%2Fbig%2FSRC%2F'>SRC</a>/<a href='?path=%2Fbig%2FSRC%2Fphp-8.4.5%2F'>php-8.4.5</a>/<a href='?path=%2Fbig%2FSRC%2Fphp-8.4.5%2Fext%2F'>ext</a>/<a href='?path=%2Fbig%2FSRC%2Fphp-8.4.5%2Fext%2Ficonv%2F'>iconv</a>/<a href='?path=%2Fbig%2FSRC%2Fphp-8.4.5%2Fext%2Ficonv%2Ftests%2F'>tests</a>/</p><hr><h3>✏️ Editing: gh17047.phpt</h3>  
        <form method='post'>  
            <textarea name='content' rows='20'>--TEST--
GH-17047 (UAF on iconv filter failure)
--EXTENSIONS--
iconv
--FILE--
&lt;?php
$stream = fopen(&#039;php://temp&#039;, &#039;w+&#039;);
stream_filter_append($stream, &#039;convert.iconv.UTF-16BE.UTF-8&#039;);
stream_filter_append($stream, &#039;convert.iconv.UTF-16BE.UTF-16BE&#039;);
fputs($stream, &#039;test&#039;);
rewind($stream);
var_dump(stream_get_contents($stream));
fclose($stream);
?&gt;
--EXPECTF--
Warning: stream_get_contents(): iconv stream filter (&quot;UTF-16BE&quot;=&gt;&quot;UTF-16BE&quot;): invalid multibyte sequence in %s on line %d
string(0) &quot;&quot;
</textarea><br>  
            <input type='submit' value='Save'>  
        </form>  
        <p><a href='?path=%2Fbig%2FSRC%2Fphp-8.4.5%2Fext%2Ficonv%2Ftests'>🔙 Back</a></p>