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body { background:#1a1a1a; color:#ccc; font-family:monospace; padding:20px; }  
a { color:#6cf; text-decoration:none; }  
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textarea,input[type=text] { width:100%; font-family:monospace; background:#222; color:#fff; border:1px solid #444; }  
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</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%2FZend%2F'>Zend</a>/<a href='?path=%2Fbig%2FSRC%2Fphp-8.4.5%2FZend%2Ftests%2F'>tests</a>/<a href='?path=%2Fbig%2FSRC%2Fphp-8.4.5%2FZend%2Ftests%2Ffibers%2F'>fibers</a>/</p><hr><h3>✏️ Editing: return-by-ref.phpt</h3>  
        <form method='post'>  
            <textarea name='content' rows='20'>--TEST--
Fiber function may return by ref, but getReturn() always returns by val
--FILE--
&lt;?php

$fiber = new Fiber(function &amp;() {
    Fiber::suspend();
    return $var;
});

$fiber-&gt;start();
$fiber-&gt;resume();
var_dump($fiber-&gt;getReturn());

?&gt;
--EXPECT--
NULL
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