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    <?php
     function getMonthweeks($date){
     $ret=array();
      $stimestamp=strtotime($date);
      $mdays=date('t',$stimestamp);
      $msdate=date('Y-m-d',$stimestamp);
      $medate=date('Y-m-'.$mdays,$stimestamp);
     $etimestamp = strtotime($medate);
     //«@È¡µÚÒ»ÖÜ
     $zcsy=6-date('w',$stimestamp);//µÚÒ»ÖÜÈ¥µoµÚÒ»Ìi߀ÓÐŽ×Ìi
     $zcs1=$msdate;
     $zce1=date('Y-m-d',strtotime("+$zcsy day",$stimestamp));
     $ret[1]="µÚ1ÖÜ".$zcs1.'~'.$zce1;
     //«@È¡ÖÐegÖÜ´Î
     $jzc=0;
     //«@µÃ®"Ç°ÔÂ*ÝÊÇ6ÖÜ´Î߀ÊÇ5ÖÜ´Î
     $jzc0="";
     $jzc6="";
     for($i=$stimestamp; $i<=$etimestamp; $i+=86400){
     if(date('w', $i) == 0){$jzc0++;}
     if(date('w', $i) == 6){$jzc6++;}
     }
     if($jzc0==5 && $jzc6==5)
     {
     $jzc=5;
     }else{
     $jzc=4;
     }
     date_default_timezone_set('PRC');
     $t = strtotime('+1 monday '.$msdate);
     $n = 1;
     for($n=1; $n<$jzc; $n++) {
     $b = strtotime("+$n week -1 week", $t);
     $dsdate=date("Y-m-d", strtotime("-1 day", $b));
     $dedate=date("Y-m-d", strtotime("5 day", $b));
     $jzcz=$n+1;
     $ret[$jzcz]="µÚ".$jzcz."ÖÜ".$dsdate.'~'.$dedate;
     }
     //«@È¡×iaaÒ»ÖÜ
     $zcsy=date('w',$etimestamp);//×iaaÒ»ÖÜÊÇÖÜŽ×ÈÕ~Áu 0~6
     $zcs1=date('Y-m-d',strtotime("-$zcsy day",$etimestamp));
     $zce1=$medate;
     $jzcz=$jzc+1;
     $ret[$jzcz]="µÚ".$jzcz."ÖÜ".$zcs1.'~'.$zce1;
     return $ret;
    }
    $ret=getMonthweeks('2012-12-01');
    for($i=0; $i<=count($ret); $i++) {
     echo @$ret[$i]."<br />";
    }
    ?>

ÔËÐнa¹uÈçÏ£º

µÚ1ÖÜ2012-12-01~2012-12-01
µÚ2ÖÜ2012-12-02~2012-12-08
µÚ3ÖÜ2012-12-09~2012-12-15
µÚ4ÖÜ2012-12-16~2012-12-22
µÚ5ÖÜ2012-12-23~2012-12-29
µÚ6ÖÜ2012-12-30~2012-12-31

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