更改下拉列表显示调用 php 函数
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on Change of dropdown list showld call the php function
提问by Indu
On change of the dropdown list, A php function should called.
更改下拉列表时，应调用 php 函数。
Inside the PHP function I will do some calculation. Later I need to set the value of a text box or else that PHP function should return a value that value shoul be catch in the javascript and set that valu to the textbox control.
在 PHP 函数中，我会做一些计算。稍后我需要设置文本框的值，否则 PHP 函数应该返回一个值，该值应该在 javascript 中捕获并将该值设置为文本框控件。
My html function is
我的 html 函数是
<select name="sltLeaveType" id="sltLeaveType" class="formSelect" onchange="TotalCountsOfPL(this.value)">
<?php
<option></option>
<option></option>
</select>
And in PHP function is placed in D:/Project/EmployeeDetails/EmpLeave.php
并且在PHP函数中放置在D:/Project/EmployeeDetails/EmpLeave.php
class clsGetTotalPL
{
function GetTotalPL($EmployeeId)
{
$query = "select count(leave_request_id) from hs_hr_leave_requests where leave_type_id='LTY002' AND employee_id=".$EmployeeId.";";
return $query;
}
So now please [prvide me the JQuery function to call this Php function to get call the GetTotalPL() function on every change on the the dropdownlist.
所以现在请[提供给我 JQuery 函数来调用这个 Php 函数，以便在下拉列表中的每次更改时调用 GetTotalPL() 函数。
回答by Imran Khan
You can't call a php function from js or html, but you can do that by ajax call to a php function where you can perform your calculation and then return the result value to js, so then you can do by js to html...
您不能从 js 或 html 调用 php 函数，但是您可以通过对 php 函数的 ajax 调用来执行此操作，您可以在其中执行计算，然后将结果值返回给 js，这样您就可以通过 js 执行到 html。 ..
Update:
更新：
<select name="employee" id="employee" onchange="getIPL(this.value);">
<option value="">Select Employee</option>
</select>
function getIPL(id)
{
$.ajax({
type: "GET",
url: "EmpLeave.php",
data: "emp_Id =" + id,
success: function(result){
$("#somewhere").html(result);
}
});
};
// Empleave.php file....
if(isset($_GET['emp_Id'])){
GetTotalPL($_GET['emp_Id']);
}
function GetTotalPL($id){
// do your calculation...
}
回答by Hamid
Insert your function in a php file to excute , then you could call php file with ajax ( i suggest u use jQuery )
将您的函数插入到一个 php 文件中执行，然后您可以使用 ajax 调用 php 文件（我建议您使用 jQuery）
///////////////////////// foo.php
<?php
Function foo (){
// Your process
}
foo();
?>
///////////////////// text.html
<select name="test" id="test" >
<option>.....</option>
.
.
.
.
</select>
<script type='text/javascript' src='http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js'></script>
<script type="text/javascript">
$('#test').change(function(){
$.ajax({
type: "GET",
url: "foo.php",
success:function(){
// Your function after execute foo.php
}
})
})
</script>
