3v4l.org

run code in 300+ PHP versions simultaneously
<?php $obj = new stdClass(); $obj->a = new StdClass(); $obj->a->b = 'abcd'; echo "$obj->a->b";
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Fatal error: Uncaught Error: Object of class stdClass could not be converted to string in /in/8pL6M:7 Stack trace: #0 {main} thrown in /in/8pL6M on line 7
Process exited with code 255.
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116.48 ms | 402 KiB | 123 Q