3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace test1 { class test2 { function __construct() {echo __CLASS__;} } } new test1\test2;
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.7
Fatal error: No code may exist outside of namespace {} in /in/aQRgb on line 9
Process exited with code 255.
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159.17 ms | 1395 KiB | 36 Q