<form action="" method="post">
<input type="checkbox" name="friend" value="1">
<input type="submit" value="Go">
</form>
<?php
if(isset($_POST)) {
echo $_POST['friend'];
}
- 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 action="" method="post">
<input type="checkbox" name="friend" value="1">
<input type="submit" value="Go">
</form>
Warning: Undefined array key "friend" in /in/hDGVa on line 8
- Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
- <form action="" method="post">
<input type="checkbox" name="friend" value="1">
<input type="submit" value="Go">
</form>
Notice: Undefined index: friend in /in/hDGVa on line 8
- Output for 7.3.32 - 7.3.33
- <form action="" method="post">
<input type="checkbox" name="friend" value="1">
<input type="submit" value="Go">
</form>
- 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 action="" method="post">
<input type="checkbox" name="friend" value="1">
<input type="submit" value="Go">
</form>
Notice: Undefined index: friend in /in/hDGVa on line 8
preferences:
220.38 ms | 402 KiB | 329 Q