Why I do not get any printing on the screen (m1, m2 or m3)?
i.e. how can I pass JavaScript var to PHP Session.
<?php session_start(); ?>
<html>
<head>
<script type="text/javascript">
function disp_text()
{
var p = document.myform.mylist.value;
<?php $_SESSION['color'] ?> = p;
<?php echo $_SESSION['color'] ?>;
}
</script>
</head>
<body>
<FORM NAME="myform">
<SELECT NAME="mylist" onChange="disp_text()">
<OPTION VALUE="m1">Red
<OPTION VALUE="m2">Blue
<OPTION VALUE="m3">Green
</SELECT>
</FORM>
Thanks for any help.
Why I do not get any printing on the screen (m1, m2 or m3)?
i.e. how can I pass JavaScript var to PHP Session.
<?php session_start(); ?>
<html>
<head>
<script type="text/javascript">
function disp_text()
{
var p = document.myform.mylist.value;
<?php $_SESSION['color'] ?> = p;
<?php echo $_SESSION['color'] ?>;
}
</script>
</head>
<body>
<FORM NAME="myform">
<SELECT NAME="mylist" onChange="disp_text()">
<OPTION VALUE="m1">Red
<OPTION VALUE="m2">Blue
<OPTION VALUE="m3">Green
</SELECT>
</FORM>
Thanks for any help.
Share Improve this question asked Jun 30, 2012 at 14:38 blsnblsn 1,0933 gold badges18 silver badges39 bronze badges 1- This has been answered here: stackoverflow./questions/15067335/… – Luqman Adris Commented Nov 4, 2013 at 6:10
3 Answers
Reset to default 5And another one for the count... JavaScript runs on the user's puter, PHP runs on the server. View the page source (right-click, View Source) and you will see exactly why it doesn't work:
<script type="text/javascript">
function disp_text()
{
var p = document.myform.mylist.value;
= p;
;
}
</script>
The only way to get JS variables into PHP is via a form (which I am using loosely to include AJAX).
Try this
<html>
<head>
<script type="text/javascript">
function disp_text()
{
var e = document.getElementsByName("mylist")[0];
var p = e.options[e.selectedIndex].value;
sessionStorage.color = p;
document.write(p);
}
</script>
</head>
<body>
<FORM NAME="myform">
<SELECT NAME="mylist" onChange="disp_text()">
<OPTION VALUE="m1">Red</OPTION>
<OPTION VALUE="m2">Blue</OPTION>
<OPTION VALUE="m3">Green</OPTION>
</SELECT>
</FORM>
</body>
</html>
index.php:
<script type="text/javascript">
var time = "OK then, let's do this!";
sessionStorage.setItem("time", time);
window.location.href = "test.php";
</script>
test.php
<script type="text/javascript">
var time = sessionStorage.getItem("time");
console.log(time);
<?php $abc = "<script>document.write(time)</script>"?>
</script>
<?php
echo $abc;
?>
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