3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (isset($_GET['item'])) { $cart_item = $_GET['item']; } ?> <!doctype html> <html lang="en"> <head> <meta charset="utf-8"> </head> <body> <form method="post" action=""/> <input type="hidden" name="item"> <input type="submit" value="Yes, Add to Cart"> </form> <?php echo $cart_item; ?> </body> </html>
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
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> </head> <body> <form method="post" action=""/> <input type="hidden" name="item"> <input type="submit" value="Yes, Add to Cart"> </form> Warning: Undefined variable $cart_item in /in/Pilbn on line 18 </body> </html>
Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 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 - 7.4.33
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> </head> <body> <form method="post" action=""/> <input type="hidden" name="item"> <input type="submit" value="Yes, Add to Cart"> </form> Notice: Undefined variable: cart_item in /in/Pilbn on line 18 </body> </html>
Output for 7.3.32 - 7.3.33
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> </head> <body> <form method="post" action=""/> <input type="hidden" name="item"> <input type="submit" value="Yes, Add to Cart"> </form> </body> </html>
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> </head> <body> <form method="post" action=""/> <input type="hidden" name="item"> <input type="submit" value="Yes, Add to Cart"> </form> Notice: Undefined variable: cart_item in /in/Pilbn on line 18 </body> </html>

preferences:
291.56 ms | 402 KiB | 460 Q