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@ 2017-07-04T21:40:29Z

<?php
$allowed = array('txt', 'docx');
print "\n\$_REQUEST:"; var_dump($_REQUEST);
//o$a="txt.$php";
//echo "test${a}test\n";

    $zzfile = $_REQUEST['zzfile'];
    //$filename = basename($zzfile);
    $filename = $zzfile;
    print "\nfilename:\n";
    var_dump($filename);
    if (preg_match('#\.(.+)$#', $filename, $matches) && isset($matches[1]) && !in_array($matches[1], $allowed))
        die("Extension ${matches[1]} is not allowed!");
    echo "\nmatches:"; var_dump($matches);
    preg_match('#.#', $filename, $met);
    print("\nmet:\n");
    var_dump($met);
    if (strrpos($filename, '.') !== false) //zwraca od pierwszej kropki od prawej do konca + end
        $ext = substr($filename, strrpos($filename, '.'));
    else
        $ext = '';

    $newfile = "flag$ext";
    echo "Reading <strong>$newfile</strong>...";
    // Hint: the flag is in flag.php
    echo '<pre>';
    readfile($newfile);
    echo '</pre>';


?>

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: Using ${var} in strings is deprecated, use {$var} instead in /in/OFXdL on line 13 $_REQUEST:array(0) { } Warning: Undefined array key "zzfile" in /in/OFXdL on line 7 filename: NULL Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in /in/OFXdL on line 12 matches:array(0) { } Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in /in/OFXdL on line 15 met: array(0) { } Deprecated: strrpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /in/OFXdL on line 18 Reading <strong>flag</strong>...<pre> Warning: readfile(): open_basedir restriction in effect. File(flag) is not within the allowed path(s): (/tmp:/in:/etc) in /in/OFXdL on line 27 Warning: readfile(flag): Failed to open stream: Operation not permitted in /in/OFXdL on line 27 </pre>

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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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