$datestring='2011-03-30 first day of last month';
$dt=date_create($datestring);
echo $dt->format('Y-m'); //2011-02
/php/39859.htmlwww.phpzy.comtrue/php/39859.htmlTechArticle上个月第一天-PHP源码 php代码 $datestring=2011-03-30 first day of last month;$dt=date_create($datestring);echo $dt->format(Y-m); //2011-02...
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