PHP generated image and Pear Cache_lite

Hi Guys

Im trying to acomplish generating an image with an id and cache it but im not sure if im doing it right

<?php

require_once "Cache/Lite.php";

$options = array(
    'cacheDir' => '/tmp/',
    'lifeTime' => 7200,
    'pearErrorMode' => CACHE_LITE_ERROR_DIE
);
$cache = new Cache_Lite($options);

if ($im= $cache->get('id_of_the_page')) {

imagegif($im);
imagedestroy($im);

} else { 
    
//GET data from db

// Create a new image instance
$im = imagecreatetruecolor(100, 100);

// Make the background white
imagefilledrectangle($im, 0, 0, 99, 99, 0xFFFFFF);

// Draw a text string on the image
imagestring($im, 3, 40, 20, 'DB Data', 0xFFBA00);

// Output the image to browser
header('Content-type: image/gif');

imagegif($im);

$cache->save($im);

imagedestroy($im);

}

?>

PHP:

I seam to be getting cache files generated but they are very small I would have expected them to be atleast the size of the image (4k) - im sure im saving the $im data to cache but i was hopeing to save the output of imagegif($im); and display when its in cache.

Hope this makes sense?

Rob

 

<?php
require_once "Cache/Lite.php";

$options = array(    
	'cacheDir' => '/tmp/',
	'lifeTime' => 7200,
	'pearErrorMode' => CACHE_LITE_ERROR_DIE);
$cache = new Cache_Lite($options);

if ($contents= $cache->get('id_of_the_page')) {

echo $contents;

} else {


$im = imagecreatetruecolor(300, 50);
$text_color = imagecolorallocate($im, 233, 14, 91);
imagestring($im, 1, 5, 5,  'A Simple Text String', $text_color);

// start buffering
ob_start();
// output jpeg (or any other chosen) format & quality
imagejpeg($im, NULL, 85);
// capture output to string
$contents = ob_get_contents();
// end capture
ob_end_clean();

imagejpeg($im, NULL, 85);

$cache->save($contents);

// be tidy; free up memory
imagedestroy($im);

}
?>

PHP:

Sorted it!

 

You can only save string data with Cache_lite. And obviously your image is no string data I do not have any experience with PEAR Cache_lite but why don't you just save the image to disk with the id and check if the image with a given id was already created?