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Simple PHP cache design implementation code_PHP tutorial
- WBOYOriginal
- 2016-07-21 15:23:53763browse
Copy code The code is as follows:
//This function mainly uses the file modification time function filemtime and now Time is subtracted 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 ()));
}
?>
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