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I have a simple PHP page which displays image chart generated by different PHP file. But the image is not updated on some older browsers (e.g e-reader browser). Any idea how to force refresh/image regeneration?

Thanks Peter

<img src="image.php" alt="Image created by a PHP script">

Content of image.php

    // Call Polyline Function
$draw->polyline($points);
  
// Create an Imagick Object
$image = new Imagick();
  
// Create new Image
$image->newImage(140, 100, 'white');
  
// Set Image Format
$image->setImageFormat("png");
  
// Draw Image
$image->drawImage($draw);
  
header("Content-Type: image/png");
  
// Display the output image
echo $image->getImageBlob();
user2432166
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    Does this answer your question? [How to prevent Browser cache for php site](https://stackoverflow.com/questions/13640109/how-to-prevent-browser-cache-for-php-site) – KIKO Software Apr 29 '22 at 23:07
  • Unfortunately not, added headers from link above, but still the same (updated on Firefox, Chrome, IE but not on old browser in e-reader). – user2432166 May 02 '22 at 14:59

0 Answers0