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run code in 300+ PHP versions simultaneously
<?php const FOO = PHP_INT_SIZE === 8 ? '64bit' : (PHP_INT_SIZE === 4 ? '32bit' : throw new \Error('unexpected')); var_dump(FOO);
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
string(5) "64bit"
Output for 7.4.0 - 7.4.33
Parse error: syntax error, unexpected 'throw' (T_THROW) in /in/gUPpH on line 3
Process exited with code 255.

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