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<?php $width = 2034; $height = 847; bcscale(5); $ratio = bcdiv(bcdiv(1200, bcdiv($width, 100)) , 100); var_dump($ratio); $newWidth = bcmul($width, $ratio); $newHeight = bcmul($height, $ratio); var_dump($newWidth); var_dump($newHeight);
Output for git.master, git.master_jit, rfc.property-hooks
string(7) "0.58997" string(10) "1199.99898" string(9) "499.70459"

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