1, mktime() ??? ???? ?? ?? ??? ?? ? 1?? ?(2018/3/13)

<?php
$day=date("t",mktime(0,0,0,$mon,1,$year));//當(dāng)前月的天數(shù)  31
$w=date("w",mktime(0,0,0,$mon,1,$year));//當(dāng)月1號的星期幾  4

2, ??? ?????. ?? ??

<?php
echo"<div align='center'>";
echo"<table border='0'>";
echo"<h3><div>{$year}年{$mon}月</div></h3>";
echo "<tr>";
echo "<th>日</th>";
echo "<th class='td1'>一</th>";
echo "<th class='td1'>二</th>";
echo "<th class='td1'>三</th>";
echo "<th class='td1'>四</th>";
echo "<th class='td1'>五</th>";
echo "<th>六</th>";
echo "</tr>";

3, ?? ??? ?????

??:

mktime() ??? ?? ?? ? ? ?? ??? ? ? ????. ?? 1?? ?? ?? ? ???? ?? ???? ???? ???. 7? ?? ??? ?? ???? ?????. ?? 1?? ?? 1? ???, 7? ?? ? ?? ???? ? ?? ???? ??? ??? ????

Code:

<?php
$d=1;
while($d<=$day){
    echo"<tr onmouseOver='overTr(this)'onmouseOut='outTr(this)'>";
    for($i=1;$i<=7;$i++){//循環(huán)輸出7天信息
        if($d<=$day&&($w<$i||$d!=1)){
            echo "<th><a href=''>{$d}</a></th>";
            $d++;
        }else{
            echo"<th> </th>";
        }
    }
}

?? ??? ??? ????.