What should I do if phpcms cannot read the cache?

What should I do if phpcms cannot read the cache?

The website is running normally on the server. I can enter the website background on my computer and update the cache page. Blank, access to the home page is still blank. Debugging found that it was executed in include/common.inc.php until the following was not executed.

The code is as follows:

$CACHE = cache_read('common.php'); 
if(!$CACHE) 
{ 
require_once 'cache.func.php'; 
cache_all(); 
$CACHE = cache_read('common.php'); 
} 
extract($CACHE); 
unset($CACHE);

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Comment it out and you can enter. Even updating the cache doesn't work. The home page can be seen, but the modified files cannot be seen.

Solution:

After debugging the cache_read function step by step, it was finally solved, because php.ini The value of memory_limit is too small, just change it to a larger value.

Restart apache or add the following sentence in front of

$CACHE = cache_read('common.php');

@ini_set('memory_limit', '128M');

Set the memory size that php can use to 64M.

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