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run code in 300+ PHP versions simultaneously
<?php class foo { var $bar = 'arr'; } $arr = array(0 => 'bar'); $p7 = 'bar'; $f = new foo(); echo $$f->$arr[0]; // php7 // < php7 'arr'
Output for 7.4.0 - 7.4.33, 8.0.0 - 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 foo could not be converted to string in /in/U8jh9:6 Stack trace: #0 {main} thrown in /in/U8jh9 on line 6
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Recoverable fatal error: Object of class foo could not be converted to string in /in/U8jh9 on line 6
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33
Catchable fatal error: Object of class foo could not be converted to string in /in/U8jh9 on line 6
Process exited with code 255.
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200.7 ms | 402 KiB | 377 Q