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<?php $power = [4 => 20, 6 => 0, 18 => 5]; var_dump(array_filter($power)); foreach ($power as $id => $p) { if (0 === $p) { unset($power[$id]); } } var_dump($power);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [4]=> int(20) [18]=> int(5) } array(2) { [4]=> int(20) [18]=> int(5) }

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