3v4l.org

run code in 300+ PHP versions simultaneously
<?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 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
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>
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 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>
Output for 8.1.0 - 8.1.28
$_REQUEST:array(0) { } Warning: Undefined array key "zzfile" in /in/OFXdL on line 7 filename: NULL Deprecated: preg_match(): Passing null to parameter #2 ($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>
Output for 8.0.0 - 8.0.12, 8.0.14 - 8.0.30
$_REQUEST:array(0) { } Warning: Undefined array key "zzfile" in /in/OFXdL on line 7 filename: NULL matches:array(0) { } met: array(0) { } 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>
Output for 8.0.13
$_REQUEST:array(0) { } Warning: Undefined array key "zzfile" in /in/OFXdL on line 7 filename: NULL matches:array(0) { } met: array(0) { } Reading <strong>flag</strong>...<pre> Warning: readfile(flag): Failed to open stream: No such file or directory in /in/OFXdL on line 27 </pre>
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.4.33
$_REQUEST:array(0) { } Notice: Undefined index: zzfile in /in/OFXdL on line 7 filename: NULL matches:array(0) { } met: array(0) { } Reading <strong>flag</strong>...<pre> Warning: readfile(flag): failed to open stream: No such file or directory in /in/OFXdL on line 27 </pre>
Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.32
$_REQUEST:array(0) { } Notice: Undefined index: zzfile in /in/OFXdL on line 7 filename: NULL matches:array(0) { } met: array(0) { } 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>
Output for 7.3.32 - 7.3.33, 7.4.26
$_REQUEST:array(0) { } filename: NULL matches:array(0) { } met: array(0) { } Reading <strong>flag</strong>...<pre> Warning: readfile(flag): failed to open stream: No such file or directory in /in/OFXdL on line 27 </pre>
Output for 7.1.20
$_REQUEST:array(0) { } Notice: Undefined index: zzfile in /in/OFXdL on line 7 filename: NULL matches:array(0) { } met: array(0) { } Reading <strong>flag</strong>...<pre> Warning: readfile(): open_basedir restriction in effect. File(flag) is not within the allowed path(s): (/tmp:/in) 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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