我需要通过选中数据库中的复选框与周数组来匹配日期。这是我的资源：
$weekDay
$weekDay=array("1"=>"Mon","2"=>"Tue","3"=>"Wed","4"=>"Thu","5"=>"Fri","6"=>"Sat","7"=>"Sun");
$opDay
Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 [5] => 6 [6] => 7 )
所以我写：
foreach($weekDay as $key=>$val){
$inDay = array_intersect($weekDay,$opDays);
echo "<label><input type='"checkbox'" name='"exc_opd[]'" value='"{$key}'" ".(($inDay)? '"checked"':" " )."/> {$val}</label> ";
}
根据函数，我希望与$opDay匹配的复选框会checked。循环将继续未选中的框。
最后，我想出了这个解决方案。可能不是最好的，但它正在工作。任何关于我的知识建议将不胜感激。
foreach($weekDay as $key=>$val){
$inDay = array_intersect_key($weekDay,array_flip($opDays));
if($inDay[$key]){
echo "<label><input type='"checkbox'" name='"exc_opd[]'" value='"{$key}'" checked/> $val</label> ";
}else{
echo "<label><input type='"checkbox'" name='"exc_opd[]'" value='"{$key}'"/> $val</label> ";
}
}