3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function add($x,$y){ $add=$x + $y; return $add; } function subtract($x,$y){ $subtract=$x - $y; return $subtract; } function multiply($x,$y){ $multiply=$x * $y; return $multiply; } function divide($x,$y){ $divide=$x / $y; return $divide; } if(isset($_POST['submit'])){ $x=$_POST['num1']; $y=$_POST['num2']; $z=$_POST['express']; if($z == 'add'){ $result=add($x,$y); } else if($z=='subtract'){ $result=subtract($x,$y); } else if($z=='multiply'){ $result=multiply($x,$y); } else{ $result=divide($x,$y); } } ?> <html> <body> <form action="#" method="post"> Num1:<input name="num1"><br> <input type='radio' name='express' value='add'>+ <input type='radio' name='express' value='subtract'>- <input type='radio' name='express' value='multiply'>* <input type='radio' name='express' value='divide'>/ <br> Num2:<input name="num2"> Result<input value='<?php if(isset($result)){echo $result;} ?>'> <input type="submit" name="submit"> </form> </body> </html>
Output for 4.3.0 - 7.3.1
<html> <body> <form action="#" method="post"> Num1:<input name="num1"><br> <input type='radio' name='express' value='add'>+ <input type='radio' name='express' value='subtract'>- <input type='radio' name='express' value='multiply'>* <input type='radio' name='express' value='divide'>/ <br> Num2:<input name="num2"> Result<input value=''> <input type="submit" name="submit"> </form> </body> </html>