3v4l.org

run code in 300+ PHP versions simultaneously
<?php $f = new stdClass; echo strtolower($f);
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
Fatal error: Uncaught TypeError: strtolower(): Argument #1 ($string) must be of type string, stdClass given in /in/Pk3Sf:2 Stack trace: #0 /in/Pk3Sf(2): strtolower(Object(stdClass)) #1 {main} thrown in /in/Pk3Sf on line 2
Process exited with code 255.
Output for 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 - 7.3.33, 7.4.0 - 7.4.33
Warning: strtolower() expects parameter 1 to be string, object given in /in/Pk3Sf on line 2
Output for 5.2.0 - 5.2.17
Catchable fatal error: Object of class stdClass could not be converted to string in /in/Pk3Sf on line 2
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Notice: Object of class stdClass to string conversion in /in/Pk3Sf on line 2 object
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
Notice: Object to string conversion in /in/Pk3Sf on line 2 object

preferences:
334.57 ms | 402 KiB | 460 Q