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run code in 500+ PHP versions simultaneously
<?php $a = new class { }; class_alias($a::class, 'foo'); if (true) { class bar extends foo { } }
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
Output for 7.4.33
Fatal error: Cannot use ::class with dynamic class name in /in/pDFTL on line 5
Process exited with code 255.

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