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I want the value of JavaScript variable which i could access using PHP. I am using the code below but it doesn't return value of that variable in PHP.
// set global variable in javascript profile_viewer_uid = 1; // php code $profile_viewer_uid=$_POST['profile_viewer_uid']; this gives me the following error :-
A PHP Error was encountered Severity: Notice Message: Undefined index: profile_viewer_uid Another php code i used which give empty value
$profile_viewer_uid = "<script language=javascript>document.write(profile_viewer_uid);</script> When I echo it shows nothing.
747
The way to pass a JavaScript variable to PHP is through a request. This type of URL is only visible if we use the GET action, the POST action hides the information in the URL. Server Side(PHP): On the server side PHP page, we request for the data submitted by the form and display the result. $result = $_GET [ 'data' ];
After the execution of the javascript code and after assigning the relevant value to the relevant javascript variable, you can use form submission or ajax to send that javascript variable value to use by another php page (or a request to process and get the same php page).
php $var1 = $_POST['var1']; $var2 = $_POST['var2']; $getvalue="SELECT id,name from table1 WHERE column1='$var1' and column2='$var2'"; $result=mysql_query($getvalue) or die(mysql_error()); while($row=mysql_fetch_array($result)){ extract($row); echo $name; } ?>
You can easily get the JavaScript variable value on the same page in PHP. Try the following codeL. <script> var res = "success"; </script> <? php echo "<script>document.
You will need to use JS to send the URL back with a variable in it such as: http://www.site.com/index.php?uid=1
by using something like this in JS:
window.location.href=”index.php?uid=1"; Then in the PHP code use $_GET:
$somevar = $_GET["uid"]; //puts the uid varialbe into $somevar If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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