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<?php function diff($this, $that){ $diff = abs((deg2rad($this)+M_PI_2)-(deg2rad($that)+M_PI_2)); $diff = min( M_PI_2 - $diff, $diff); echo rad2deg($diff) .PHP_EOL; } diff(-1,1);//2 diff(-90,90);//180 diff(-179,179);//2
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Cannot use $this as parameter in /in/vM8fe on line 2
Process exited with code 255.

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