PHP uses filesystem functions to cache operations (generate, Fetch, delete operations)

1<?PHP2    class File{3        //$key is equivalent to the file name of the cache4 //$value cache data5        Private $_dir;//Define default Path6        Constext= '. txt ';7         Public function__construct () {8              $this->_dir=dirname(__file__).‘ /files/'; 9          }   Ten         Public functionCacheData ($key,$value="",$path=""){ One          $filename=$this->_dir.$path.$key. Self::EXT; A          if($value!==""){//write $value value to cache -              if(Is_null($value)){ -                  return@unlink($filename);//Delete cache, @ The function of the output of the Mask error message the              } -              $dir=dirname($filename); -              if(!Is_dir($dir)){ -                  mkdir($dir, 0777); +              } -         return file_put_contents($filename, Json_encode ($value));  +          } A          //Get Cache at          if(!Is_file($filename)){ -              return false; -}Else{ -             returnJson_decode (file_get_contents($filename),true); -          } -        } in    } -?>

<?PHPrequire_once("file.php"); $data=Array(        ' id ' =>1, ' name ' = ' sina ', ' type ' and ' = 'Array(4,5,6), ' Test ' =Array(1,45,67=>Array(123, ' Tsysa '),    ); $file=New File(); //Index_mk_cache Cache file name//$data for cached data    if($file->cachedata (' Index_mk_cache ',$data)){//the effect of implementing output cache files when $data is changed to null        Echo"Success"; }Else{        Echo"Error"; }?>

PHP uses filesystem functions to cache operations (generate, Fetch, delete operations)