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<?php $y1 = ~-$x * 4; # ?identical to $y2 = ($x-1)*4; $y2 = ($x-1)*4; var_dump($y1,$y2);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $x in /in/ISJ85 on line 2 Warning: Undefined variable $x in /in/ISJ85 on line 3 int(-4) int(-4)

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