3v4l.org

run code in 300+ PHP versions simultaneously
<?php class db_driver {} $array = new std; $encode = (serialize($array)); echo $encode, PHP_EOL; echo base64_encode(gzcompress($encode)), PHP_EOL, PHP_EOL, PHP_EOL;
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught Error: Class "std" not found in /in/eVH6X:2 Stack trace: #0 {main} thrown in /in/eVH6X on line 2
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Class 'std' not found in /in/eVH6X:2 Stack trace: #0 {main} thrown in /in/eVH6X on line 2
Process exited with code 255.
Output for 5.0.0 - 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, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Fatal error: Class 'std' not found in /in/eVH6X on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Cannot instantiate non-existent class: std in /in/eVH6X on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: std in /in/eVH6X on line 2

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237.34 ms | 401 KiB | 312 Q