3v4l.org

run code in 300+ PHP versions simultaneously
<?php $token = hash('sha512', mt_getrandmax() . microtime(TRUE)); $_SESSION['token'] = $token; ?> <form action="" method ="POST"> <input type="hidden" name ="token" value="<?= $token ?>"> <input type="text" name="search" id="search" value ="<?= isset($_POST['search']) ? $_POST['search'] : "" ?>" > <input type="submit" value="Go"> </form> <?php if (isset($_POST['token'])) { echo $_POST['token'] == $_SESSION['token'] ? 'true' : 'false'; var_dump($_SESSION); echo '<br />'; echo '<br />'; var_dump($_POST); }
Output for 5.4.2 - 5.4.5, 5.4.7 - 5.4.10, 5.4.12 - 5.4.13, 5.4.15 - 5.4.19, 5.4.22 - 5.4.24, 5.4.26 - 5.4.29, 5.4.32 - 5.4.34, 5.4.36, 5.4.39 - 5.4.40, 5.4.43 - 5.4.45, 5.5.8, 5.5.10, 5.5.12, 5.5.14, 5.5.16 - 5.5.17, 5.5.20, 5.5.24 - 5.5.25, 5.5.27 - 5.5.29, 5.5.33, 5.5.36 - 5.5.37, 5.6.2 - 5.6.3, 5.6.8, 5.6.16, 5.6.20, 5.6.22, 5.6.26, 5.6.28 - 5.6.29, 5.6.33 - 5.6.34, 5.6.36 - 5.6.37, 5.6.39 - 5.6.40, 7.0.11, 7.0.13 - 7.0.14, 7.0.24 - 7.0.25, 7.0.29 - 7.0.30, 7.1.1, 7.1.13, 7.1.15, 7.1.19, 7.1.21, 7.1.23, 7.1.27, 7.1.30 - 7.1.33, 7.2.0 - 7.2.2, 7.2.4, 7.2.9, 7.2.17 - 7.2.19, 7.2.22 - 7.2.25, 7.3.3, 7.3.6 - 7.3.8, 7.3.10 - 7.3.12, 7.4.0
<form action="" method ="POST"> <input type="hidden" name ="token" value="43427abf590f029f47e1e357ee01eae3ea4000188fb41e725dab811662d4d594b3ecab1bd7b1dae29ad99971e4a21a925dbcaffebf6f22a58ce7901efd68c40d"> <input type="text" name="search" id="search" value ="" > <input type="submit" value="Go"> </form>
Output for 5.4.1, 5.4.6, 5.4.11, 5.4.14, 5.4.20 - 5.4.21, 5.4.25, 5.4.30 - 5.4.31, 5.4.35, 5.4.38, 5.4.41 - 5.4.42, 5.5.0 - 5.5.7, 5.5.9, 5.5.11, 5.5.13, 5.5.15, 5.5.18 - 5.5.19, 5.5.21 - 5.5.23, 5.5.26, 5.5.30 - 5.5.32, 5.5.34 - 5.5.35, 5.5.38, 5.6.0 - 5.6.1, 5.6.4 - 5.6.7, 5.6.9 - 5.6.15, 5.6.17 - 5.6.19, 5.6.21, 5.6.23 - 5.6.25, 5.6.27, 5.6.30 - 5.6.32, 5.6.35, 5.6.38, 7.0.0 - 7.0.10, 7.0.12, 7.0.15 - 7.0.18, 7.0.21 - 7.0.23, 7.0.26 - 7.0.28, 7.0.31 - 7.0.33, 7.1.0, 7.1.2 - 7.1.4, 7.1.6 - 7.1.12, 7.1.14, 7.1.16 - 7.1.18, 7.1.20, 7.1.22, 7.1.24 - 7.1.26, 7.1.28 - 7.1.29, 7.2.3, 7.2.5 - 7.2.8, 7.2.10 - 7.2.15, 7.3.0 - 7.3.2, 7.3.5, 7.3.9
<form action="" method ="POST"> <input type="hidden" name ="token" value="c1fae19ff55656b3fbf71dd54452322866614d621666a512911519af57cb03987d0ae01c23aa8c2e9a281ea9bc7e2682ced507e18937a63fbee2353b92eb4edd"> <input type="text" name="search" id="search" value ="" > <input type="submit" value="Go"> </form>
Output for 5.4.0, 7.2.16, 7.2.20 - 7.2.21, 7.3.4
<form action="" method ="POST"> <input type="hidden" name ="token" value="fdbdfcbde181bc86899f5f37d8e8220eec9940f5d22c175375b6ee70493070919ab9b65744a74cd5028263b56563b96f33a14a8289ad3040912e8007e607e121"> <input type="text" name="search" id="search" value ="" > <input type="submit" value="Go"> </form>
Output for 7.0.19 - 7.0.20, 7.1.5
<form action="" method ="POST"> <input type="hidden" name ="token" value="836b061b6b16ef86a1b09bf8543cc6892ef1c3715813a544048fee01f704e16ee6088a357be35a29075e682162b4f96eb0f7c2f1278ab940b42767e74b6bd464"> <input type="text" name="search" id="search" value ="" > <input type="submit" value="Go"> </form>
Output for 5.4.37
<form action="" method ="POST"> <input type="hidden" name ="token" value="ad9eb13793801d6a055195538cf4fc840ce614708cc68dbef9a0cc18f08af4255b4f33decfdd9afa02145da4ef09f76b0a32622f6ec1ce70e969081c4d21a554"> <input type="text" name="search" id="search" value ="" > <input type="submit" value="Go"> </form>
Output for 5.1.2 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
<form action="" method ="POST"> <input type="hidden" name ="token" value="<?= $token ?>"> <input type="text" name="search" id="search" value ="<?= isset($_POST['search']) ? $_POST['search'] : "" ?>" > <input type="submit" value="Go"> </form>
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.1
Fatal error: Call to undefined function hash() in /in/f4jJI on line 2
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: hash() in /in/f4jJI on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: hash() in /in/f4jJI on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: hash() in /in/f4jJI on line 2

preferences:
204.57 ms | 401 KiB | 322 Q