First time I view the page with an animated .gif it plays fine on page load (lasts about 2 secs).
On refresh (F5), the .gif no longer plays and only the last frame of gif animation is shown.
Is there anything I can do do to make sure it plays everytime?
For the PHP the much better option then using date("Ymdgis");
is using time()
, like this:
<img src="picturePath.gif?<?php echo time();?>" />
Strange behavior that's affects every browser..
I usually refresh it manually with this script (it uses jQuery)
<img id="gif_animata" src="picturePath.gif">
<script type="text/javascript">
var gifSource = $('#gif_animata').attr('src'); //get the source in the var
$('#gif_animata').attr('src', ""); //erase the source
$('#gif_animata').attr('src', gifSource+"?"+new Date().getTime()); //add the date to the source of the image... :-)
</script>
This will refresh the src of the image adding the current date, so the browser will re-load it, thinking that's a new image.
Otherwise in PHP way (I prefer this one):
<img src="picturePath.gif?<?php echo date("Ymdgis");?>" />
//for the browser it will seems that's a new picture!
<img src="picturePath.gif?2012092011207">
The workaround that works for me for this issue is to reload the GIF manually using Javascript
GIF implemented on CSS (background-images)
var element = document.getElementById(name);
element.style.backgroundImage = "none";
element.style.backgroundImage = "url(imagepath.gif?"+new Date().getTime()+")";
GIF implemented on HTML (img tag)
var element = document.getElementById(name);
element.src = "";
element.src = "imagepath.gif?"+new Date().getTime();
Thanks to @sekmo
This works, only requires one line below it and I suggest not filling the <img>
src attribute at first so the page doesn't try to load any unnecessary resources.
<img id="gif" src=""/>
<script>document.getElementById('gif').src="path_to_picture.gif?a="+Math.random()</script>
It could be that your browser is just showing the cached version. Try holding shift and refreshing, and see if it works.
来源:https://stackoverflow.com/questions/11455788/gif-animation-not-playing-on-refresh