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<?php function diff($this, $that){ $diff = deg2rad($this)-deg2rad($that); while($diff < -M_PI) $diff += M_PI_2; while($diff > M_PI) $diff -= M_PI_2; echo $diff.PHP_EOL; } diff(359,1);//2 diff(-90,90); //180
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Cannot use $this as parameter in /in/06Ep3 on line 2
Process exited with code 255.

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