3v4l.org

run code in 300+ PHP versions simultaneously
<?php ?> <form method="POST"> <input type="text" name="value"> <input type="submit"> <?php echo $_POST['value']; ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
<form method="POST"> <input type="text" name="value"> <input type="submit"> Warning: Undefined array key "value" in /in/QPNCv on line 7
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
<form method="POST"> <input type="text" name="value"> <input type="submit"> Notice: Undefined index: value in /in/QPNCv on line 7
Output for 7.3.32 - 7.3.33, 7.4.26
<form method="POST"> <input type="text" name="value"> <input type="submit">
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
<form method="POST"> <input type="text" name="value"> <input type="submit"> Notice: Undefined index: value in /in/QPNCv on line 7
preferences:
251.42 ms | 402 KiB | 457 Q