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<?php echo strpos(log(($int^pow(2,ceil(log($int, 2)))-1)+1,2),'.');
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $int in /in/1IE3i on line 2 Deprecated: log(): Passing null to parameter #1 ($num) of type float is deprecated in /in/1IE3i on line 2 Warning: Undefined variable $int in /in/1IE3i on line 2

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