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<?php echo round('2.555', 2); echo round('2.555', 2, PHP_HALF_ROUND_UP);
Output for git.master, git.master_jit, rfc.property-hooks
2.56 Fatal error: Uncaught Error: Undefined constant "PHP_HALF_ROUND_UP" in /in/ZYdUr:4 Stack trace: #0 {main} thrown in /in/ZYdUr on line 4
Process exited with code 255.

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