Code-Snippets-Functions/Execute a function on a child site/Autoptimize/purge-cache-when-over-256mb-in-size.txt

if (class_exists('autoptimizeCache')) {
    $myMaxSize = 256000; # You may change this value to lower like 100000 for 100MB if you have limited server space
    $statArr=autoptimizeCache::stats(); 
    $cacheSize=round($statArr[1]/1024);
    
    if ($cacheSize>$myMaxSize){
       autoptimizeCache::clearall();
       header("Refresh:0"); # Refresh the page so that autoptimize can create new cache files and it does breaks the page after clearall.
    }
}