3v4l.org

run code in 300+ PHP versions simultaneously
<?php $A=5; $B=10; echo "Sum=".$A+$B;
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
Sum=15
Output for 7.4.0 - 7.4.33
Deprecated: The behavior of unparenthesized expressions containing both '.' and '+'/'-' will change in PHP 8: '+'/'-' will take a higher precedence in /in/fbEeL on line 5 Warning: A non-numeric value encountered in /in/fbEeL on line 5 10
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33
Warning: A non-numeric value encountered in /in/fbEeL on line 5 10
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20
10

preferences:
154.98 ms | 402 KiB | 183 Q