how can i refresh the php file using javascript code?

Question

i am writing a php program to get images from folder and show it . i want to refresh it . i can not put tht javascript code in the php ?

<?php
$action = $_REQUEST['action'];
if ($action == "view"){
 $entry =$_GET['al'];

the code for refreah

   echo '<script type="text/javascript">';
     function refresh(){
     document.images("img1").src="/latimage.php?device=$al&ref=" +  new    Date().getTime();
     var e = document.getElementById("blinker");
     e.style.visibility = ( e.style.visibility == "visible" )? "hidden" : "visible";
     setTimeout("refresh()", 3500);}
 </script>;

Take a look at your escaping. Then call refresh() from within your page — B001ᛦ
– B001ᛦ, Commented Jul 21, 2015 at 14:00
To answer the question: No, you can't do that. The JS needs to render as part of the HTML page. Read tutorials about HTML and how to include javascript so that you understand what you need to do. — Popnoodles
– Popnoodles, Commented Jul 22, 2015 at 1:31

TOM · Accepted Answer · 2015-07-22 17:37:17Z

4

You can use echo to output JavaScript code:

echo '<script type="text/javascript">',
    'function refresh() {',
        "document.images('img1').src='/latimage.php?device=$al&ref=' +  new    Date().getTime();",
        'var e = document.getElementById("blinker");',
        'e.style.visibility = ( e.style.visibility == "visible" )? "hidden" : "visible";',
        'setTimeout(refresh, 3500)',
    '}',
'</script>';

edited Jul 22, 2015 at 17:37

TOM

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answered Jul 21, 2015 at 13:58

Ben

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1 Comment

Ben Over a year ago

He uses echo for the first line of the function then just types out JavaScript

Test User · Accepted Answer · 2015-07-21 14:11:50Z

0

Try Like ?> <script> location.reload(); </script> <?php

answered Jul 21, 2015 at 14:11

Test User

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1 Comment

Popnoodles Over a year ago

This would just infinitely reload the page.

Test User · Accepted Answer · 2015-07-21 14:15:51Z

0

Try To like

?>
<script>
setTimeout(
    document.images("img1").src="/latimage.php?device=$al&ref=" +  new    Date().getTime();
    var e = document.getElementById("blinker");
    e.style.visibility = ( e.style.visibility == "visible" )? "hidden" : "visible";
, 3500);
</script>
<?php

answered Jul 21, 2015 at 14:15

Test User

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