我不確定它是否只是我或什麼,但這看起來很奇怪。當我點擊一個按鈕,我有jQuery發送JavaScript變量到一個PHP網站在那裏處理。然而,在PHP網站上,他們將其定義爲未定義的索引。奇怪的部分是,他們通過PHP的回聲顯示在HTML頁面上。注意:html按鈕是一個輸入類型=「按鈕」,而不是提交,因爲我不想重新加載頁面。jquery post變量顯示在html中,但不是php
的jQuery:
var timestampst = $(timestamp).val();
var objNamest = $(objInst).val();
$.post("sendCalc.php", {
postobjNamest:objInst,
posttimestampst:timestamp},
function(data){
$("#divResult").html(data);
});
PHP:
//used for troubleshooting, returns Array() on the php page and Array ( [posttimestampst] => 1399973296 [postobjNamest] => test2-1
print_r($_POST);
//when the if and else are used it the php page always echos Not Working, meaning that the $_POST is not set somehow. However, the html page shows the echoed variables in the "divResult" as it should.
//when I try the code without the if and else, the php page returns Undefined Index: posttimstamp/postobjNamest. However, the html page still shows the echoed variables.
if(isset($_POST["posttimestampst"])){
$timestamp = $_POST["posttimestampst"];
echo $timestamp;
echo "<br>";
$objName = $_POST["postobjNamest"];
echo $objName;
echo "<br>";
}
else{
echo "Not Working";
}
任何幫助,不勝感激!
編輯:
//gets selected object from a dropdown menu
selectedObj = document.getElementById("selectObj").value;
//objName in javascript taken from $objName var in php that is and the beginning of the html page.
objName = <?php echo json_encode($objName); ?>;
//objInst takes the value of the dropdown menu and assigns it as the [] in objName array
objInst = objName[selectedObj];
//timestamp is set in php and imported to java
var timestamp = <?php echo $timestamp; ?>;
編輯2:
<html>
<head>
<meta content="text/html;charset=utf-8" http-equiv="Content-Type">
<meta content="utf-8" http-equiv="encoding">
<script type="text/javascript" src="http://code.jquery.com/jquery-1.4.2.min.js""> </script>
</head>
<h3>Optionen und Berechnen</h3>
<form name="myForm" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" method="post">
<div id="divCalc">
</div>
<input id="addObject" type="button" onclick="addObj()" value="Add Object">
<br>
<br>
<div id="divAddObj" hidden="true">
</div>
<br>
<div id="divCalc">
</div>
<div id="divResult"></div>
</form>
<script type="text/javascript" name="addObject">
var objName;
var selectedObj;
var objInst;
var timestamp = <?php echo $timestamp; ?>;
//Start select dropdown
var select_element = document.createElement("select");
select_element.setAttribute("id", "selectObj");
select_element.setAttribute("name", "selectObject");
options = new Array();
objName = <?php echo json_encode($objName); ?>;
for (var i = 0; i < (<?php echo $arrayNum; ?>); i++){
options.push(new Option(objName[i], i, false, false));
}
options[0].selected = true;
for (var option in options){
select_element.appendChild(options[option]);
}
//End select dropdown
//check selected object
selectedObj = document.getElementById("selectObj").value;
objInst = objName[selectedObj];
var timestampst = $(timestamp).val();
var objNamest = $(objInst).val();
$.post("sendCalc.php", {
postobjNamest:objInst,
posttimestampst:timestamp},
function(data){
$("#divResult").html(data);
});
</script>
分享的HTML代碼 – Jenz
什麼是'objInst'的價值?你應該不使用'postobjNamest:objNamest'嗎? –
什麼是'objInst'? – Sthe