[請益] php中class的function
以下有兩個function:
function isTheLastSubproject($projectID)
{
$searchSub = "select * from Project where uppid='$projectID'";
$resultOfSearchSub = mysql_query($searchSub);
if(mysql_num_rows($resultOfSearchSub) > 0)
{
return "false";//has child
}
else
{
return "true";//last child
}
}
function get_subproject($projectID,$number)
{
echo $number.".".$projectID;
if($this->isTheLastSubproject($projectID) == "false")
{
$str = "select * from Project where uppid='$projectID'";
$result = mysql_query($str);
$number += 1;
while($row = mysql_fetch_object($result))
{
$this->get_subproject($row->pid,$number);
}
}
else
{
echo "\t<br>";
}
}
第一個function我本來是希望當做判斷
所以return true or false
但是我發現直接寫return true;
好像是錯誤的....
正確的寫法為何啊?
我目前寫的return "true"
感覺只是回傳一個字串....
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