javascript variable to php variable
Question
I need to assign javascript client Date (examp. - 2012/02/03 16:00:00) to php variable. Any idea how? I was trying to use this lines and changing them in million different ways. But I just cant get it.
Today = new Date();
var date = ????
var date = "<?= $date ?>";
I solved it this way:
<input id="date" type="hidden" name="date">
<script type="text/javascript">
document.getElementById('date').value = Date();
</script>
But thank you very much all.
3 answers
solution1
1 ACCPTED 2012-03-03 19:48:23
Add an input in your form
<input type="hidden" name="clientDate">
if you are using jquery add this to set the client date input when the user submits the form
$(YOUR_FORM_SELECTOR).on("submit", function() {
$("[name=clientDate]").val(new Date());
});
If you want to go with vanilla javascript follow this answer
solution2
0 2013-03-15 18:47:16
This will convert js variable to php variable and php variable to js variable
<script>
function jstophp(){
var javavar=document.getElementById("text").value;
document.getElementById("rslt").innerHTML="<?php
$phpvar='"+javavar+"';
echo $phpvar;?>";
}
function phptojs(){
var javavar2 = "<?php
$phpvar2="I am php variable value";
echo $phpvar2;
?>";
alert(javavar2);
}
</script>
<body>
<div id="rslt">
</div>
<input type="text" id="text" />
<button onClick="jstophp()" >Convert js to php</button>
<button onClick="phptojs()">Convert php to js</button>
PHP variable will appear here:
<div id="rslt2">
</div>
</body>
solution3
0 2012-03-03 19:35:51
you can't simply assign a javascript variable to a php variable. php runs on the serverside and is executed before javascript.
you can however submit an ajax call with the value of your javascript variable to a php script.
you might wanna have a look at jquery's post function.
$.post("test.php", { yourDate: date } );
in your PHP script you'll be able to access the date with $_POST['yourDate'] you can also use a form and a hidden field as you say in your comment.
in this case you can use (assuming you're using jQuery)
$('#id_of_input').val(date);
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