A collection of simple breakfast recipes and their practices Simple PHP caching design and implementation code

Copy code The code is as follows:

//This function mainly uses the file modification time function filemtime to subtract the current time to determine whether to update the content.
$cahetime=2; //Set expiration time
$cahefile="cahe.txt"; //Read and write text
if(file_exists($cahefile) && time()-$cahetime< filemtime($cahefile)){
echo file_get_contents($cahefile);
}
else {
file_put_contents($cahefile,date("y-m-d H:i:s",time()));
}
?>

The above introduces the collection of simple breakfast recipes and their methods. The simple PHP cache design and implementation code includes the collection of simple breakfast recipes and their methods. I hope it will be helpful to friends who are interested in PHP tutorials.