Dev*_*vTN 1 javascript php jquery
我在 URL 中传递 PHP 变量，所以我的页面链接如下所示www.example.com?redirect=neworders
根据$_GET['redirect']值，我在示例中创建页面内容input
然后在这一<script>部分中，我想根据PHP值调用带有参数的函数。
我当前的代码现在可以工作，但我相信这不是应该完成的正确方法，尽管我检查了多个线程并且通常答案是我提到的选项之一。
如果我做对了，有什么建议吗？我在代码中添加了注释以了解我的情况。非常感谢。
<?php
//my url can be either www.example.com?redirect=neworders or www.example.com?redirect=deliveredorders
switch($_GET['redirect']) {
case 'neworders':
$page = 'Backlog';
break;
case 'deliveredorders':
$page = 'Shipment';
break;
}
?>
<body>
//based on $page value, I create the input value with a specific id
<?php
if ( $page == 'neworders') {
echo '<input type="text" id="BacklogName" placeholder="enter order number">'; }
elseif ( $page == 'deliveredorders') {
echo '<input type="text id="ShipmentName" placeholder="enter order number then serial number">';
}
?>
<button type="button" id="submitButton">Submit</button>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</body>
<script>
$(document).ready(function() {
//I have some functions declared here to use based on $page value
function submitEvent(element, input) {
element.click(function() {
alert(input.val());
});
}
//based on $page value, intialize the function with exact selectors
//first Option came to my mind : check the $page value and echo function intialization as string
<?php
if ( $page == 'neworders') {
echo 'submitEvent($("#submitButton"), $("#BacklogName"));'; }
elseif ( $page == 'deliveredorders') {
echo 'submitEvent($("#submitButton"), $("#ShipmentName"));'; }
?>
//second option came to my mind : use javascript 'if else' and only echo the $page value
if ("<?php echo $page; ?>" == "neworders") {
submitEvent($("#submitButton"), $("#BacklogName")); }
else if ("<?php echo $page; ?>" == "deliveredorders") {
submitEvent($("#submitButton"), $("#ShipmentName"));
}
});
</script>
你可以像这样使用它：
<script type="text/javascript">
var baz = <?php echo 42; ?>;
alert(baz);
</script>
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