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<?php $float_vals = array(1.1, 1.8, -1.1, -1.8, 0.05, -0.05); foreach ($float_vals as $v) { var_dump(floor($v)); }
Output for git.master, git.master_jit, rfc.property-hooks
float(1) float(1) float(-2) float(-2) float(0) float(-1)

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