Question

如何通过JavaScript函数从select选项中一次获取值？

这是我的代码：

<select name="ledger" id="ledger" onchange="setDebit(this.value)" required>
    <option value="" >Select</option>
    <?php
        $ledgerResult = $this->db->query('SELECT * FROM ledger WHERE account_type = "Creditors" ORDER BY name');
        $ledgerData = $ledgerResult->result();

        for ($c = 0; $c < count($ledgerData); ++$c) {
                    $ledger_id = $ledgerData[$c]->id;
                    $ledger_name = $ledgerData[$c]->name;
                    $ledger_credit = $ledgerData[$c]->credit; ?>

        <option value="<?php echo $ledger_id;?>"><?php echo $ledger_name;?></option>
        }
</select>

<script>
    function setDebit(ele){
        document.getElementById("set_debit").value = ele;
    }
</script>

我收到$ledger_id并通过setDebit()将此值发送到脚本。但我需要的是发送$ledger_credit。我可以将其设置为选项值而不是$ledger_id;，但我还需要将select的值设为$ledger_id。

如何将$ ledger_id设置为选项值，但是通过setDebit(this.value)发送$ ledger_credit？

Answer 1

describeTopics

Answer 2

您必须在HTML部分中将属性设置为多个： http://www.w3schools.com/tags/att_select_multiple.asp

之后，您可以查看此问题以获取更多信息： How to get all selected values of a multiple select box using JavaScript?

Answer 3

您可以在您的选项中添加属性PM

replace()

在function convertTime12to24(time12h) { const [time, modifier] = time12h.split(' '); let [hours, minutes] = time.split(':'); if (hours === '12') { hours = '00'; } if (modifier === 'PM') { hours = parseInt(hours, 10) + 12; } return hours + ':' + minutes; } function formatTime(i_string) { console.log(i_string.replace(/([0-9]|0[0-9]|1[0-9]|2[0-3]):([0-5][0-9])(PM)/gi, function newDate(x) { return convertTime12to24(x.replace("PM", " PM")) })); } formatTime("The time is now 4:15PM"); formatTime("The time is now 12:15PM"); formatTime("The time is now 4:00AM"); formatTime("The time is now 12:00AM"); formatTime("The time is now 11:00PM");函数中：

data-credit

您必须在此解决方案中使用jquery

Answer 4

如果你没有使用jquery。

<option value="<?php echo $ledger_id."||".$ledger_credit; ?><?php echo $ledger_name;?> </option>

 <script>
   function setDebit(){
     var details = document.getElementById("ledger").value;
     var allData = details.split("||");
     var ledger_id = allData[0];
     var ledger_credit = allData[1];
     console.log(ledger_id);
     console.log(ledger_credit);
}
</script>

一次从select选项中获取两个值

4 个答案: