I'm trying to include JavaScript variables into PHP code as PHP variables, but I'm having problems doing so. When a button is clicked, the following function is called: Show
Is it possible?
CSᵠ 9,9799 gold badges39 silver badges63 bronze badges asked Mar 4, 2010 at 12:33
2 PHP is run server-side. JavaScript is run client-side in the browser of the user requesting the page. By the time the JavaScript is executed, there is no access to PHP on the server whatsoever. Please read this article with details about client-side vs server-side coding. What happens in a nutshell is this:
In your case, PHP will write the JS code into the page, so it can be executed when the page is rendered in
your browser. By that time, the PHP part in your JS snippet does no longer exist. It was executed on the server already. It created a variable The only way to do what you are looking to do is either:
with the values you want to be insert into the database. answered Mar 4, 2010 at 12:36
GordonGordon 308k72 gold badges527 silver badges551 bronze badges 0
answered May 1, 2012 at 11:50
dg_0175dg_0175 3914 silver badges2 bronze badges 6 You seem to be confusing client-side and server side code. When the button is clicked you need to send (post, get) the variables to the server where the php can be executed. You can either submit the page or use an ajax call to submit just the data. -don answered Mar 4, 2010 at 12:37
Don DickinsonDon Dickinson 6,1503 gold badges38 silver badges30 bronze badges 0 PHP runs on the server. It outputs some text (usually). This is then parsed by the client. During and after the parsing on the client, JavaScript runs. At this stage it is too late for the PHP script to do anything. If you want to get anything back to PHP you need to make a new HTTP request and include the data in it (either in the query string (GET data) or message body (POST data). You can do this by:
Which ever option you choose, the PHP is essentially the
same. Read from answered Mar 4, 2010 at 12:38
QuentinQuentin 876k121 gold badges1172 silver badges1287 bronze badges I had the same problem a few weeks ago like yours; but I invented a brilliant solution for exchanging variables between PHP and JavaScript. It worked for me well:
I hope this trick works for you.
answered Jul 11, 2010 at 7:28
SepehrSepehr 1,99517 silver badges29 bronze badges 2 You can take all values like this:
Hugo Yates 2,0712 gold badges25 silver badges24 bronze badges answered Mar 13, 2015 at 9:21
2 You can do what you want, but not like that. What you need to do is make an AJAX request from JavaScript back to the server where a separate PHP script can do the database operation. answered Mar 4, 2010 at 12:40
dj_segfaultdj_segfault 11.8k4 gold badges28 silver badges35 bronze badges Can you use a JavaScript variable in PHP?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' ];
Can JavaScript change PHP variable?You can't change the value of a PHP variable in JavaScript. PHP runs on the server and JS runs on the client PC.
How use JavaScript variable on same page in PHP?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.
How use JavaScript variable in PHP mysql query?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; } ?>
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