<?php $days = cal_days_in_month(CAL_GREGORIAN, 4, 2011); echo "返回2011-4的天数 " . $days . "<br/>" ; $days = date ( 't' , strtotime ( "2011-4-1" )); echo "返回2011-4的天数 " . $days . "<br/>" ; $days = date ( "t" ); echo "当前月的天数 " . $days . "<br/>" ; ?> |
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