3v4l.org

run code in 300+ PHP versions simultaneously
<?php $color="red"; echo "My car is " . $color . "<br>"; echo "My house is " . $COLOR . "<br>"; echo "My boat is " . $coLOR . "<br>"; ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
My car is red<br> Warning: Undefined variable $COLOR in /in/ZUnNi on line 4 My house is <br> Warning: Undefined variable $coLOR in /in/ZUnNi on line 5 My boat is <br>
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
My car is red<br> Notice: Undefined variable: COLOR in /in/ZUnNi on line 4 My house is <br> Notice: Undefined variable: coLOR in /in/ZUnNi on line 5 My boat is <br>
Output for 7.3.32 - 7.3.33
My car is red<br>My house is <br>My boat is <br>
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
My car is red<br> Notice: Undefined variable: COLOR in /in/ZUnNi on line 4 My house is <br> Notice: Undefined variable: coLOR in /in/ZUnNi on line 5 My boat is <br>
preferences:
282.43 ms | 402 KiB | 455 Q