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<?php $arr = range(1,3); foreach($arr as &$v){ } foreach($arr as $v){ } print_r($arr);//[1,2,2] // 解决一 $arr = range(1,3); foreach($arr as &$v){ } unset($v); foreach($arr as $v){ } print_r($arr);//[1,2,3] // 解决二 $arr = range(1,3); foreach($arr as &$v){ } foreach($arr as $v2){ } print_r($arr);//[1,2,3] // 解决三 $arr = range(1,3); foreach($arr as &$v){ } foreach($arr as &$v){ } print_r($arr);//[1,2,3]
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