Question

coupon = 700,701,702,703

startdate  = 25-02-2015

现在我需要计算优惠券栏的价值。

例如 - 现在优惠券列中有4个值。

现在我需要当我搜索700时，它选择startdate并在startdate中添加+1个月boz 700处于第1位并生成如下输出

for ex - 25-03-2015

当我搜索701然后它获得startdate并且在startdate中获得+2个月boz 701处于第二位并生成如下输出

for ex - 25-04-2015

当我搜索702然后它获得startdate并且+3个月boz 702处于第3位，对所有人来说都是明智的。

for ex - 25-05-2015

并将结果返回generateddate变量以便插入数据库。

 <?php
    if(!empty($_GET['q'])) {
       $db = new PDO('mysql:host=localhost;dbname=circulation_scheme_prepaid', 'root', '');
        $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
        $q = $_GET['q'];
        $result = $db->prepare('SELECT * FROM receipt_entry WHERE coupon  = :coupon'); 
        $result->execute(array(':coupon' => "$q"));    
        $data = $result->fetchAll(PDO::FETCH_ASSOC); 
        $info = array();
        foreach($data as $row) {

        $coupon = $row['coupon'];                           
        $startingdate = $row['startingdate'];

        $temp = explode(',', $coupon); 
        $key = array_search($search_word, $temp);

        $inc_month = $key + 1;
        $generateddate = date('d-m-Y', strtotime("+$inc_month months", strtotime($startingdate )));
         $info[] = array('date' =>$generateddate );
        }
        echo json_encode($info);    
    }
    ?>



 <!--AUTO POPULATE TEXTBOX ON COMBOBOX CHANGED EVENT START -->
   <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js" type="text/javascript"></script>
<script>
function showUser(str)
{
if (str=="")
{
    document.getElementByName("cityname").value="";
    return;
}
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
    xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
    xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
    if (xmlhttp.readyState==4 && xmlhttp.status==200)
    {
        var data = JSON.parse(xmlhttp.responseText);
        for(var i=0;i<data.length;i++) 
        {           
            document.getElementById("generateddate").value = data[i].date;
        }
    }
}
xmlhttp.open("GET","coupondata.php?q="+str,true);
xmlhttp.send();
}
</script>


<input type="text" name="coupon" id="coupon"  onChange="showUser(this.value)"  class="field size4" />

Answer 1

爆炸后试试这个：

$coupon = $row['coupon'];                           
$startingdate = $row['startingdate'];

$temp = explode(',', $coupon); 
$key = array_search($search_word, $temp);

$inc_month = $key + 1;
$generateddate = date('d-m-Y', strtotime("+$inc_month months", strtotime($startingdate )));

php代码计算列值并添加到日期列

1 个答案: