thinkphp file cache class code sharing

thinkphp File Cache class code sharing

From the thinkphp file cache class code, here is not much nonsense, small partners to see their own notes.

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<?php/** * @desc File Cache/class cache{const C_file = '/runtime/'; pri Vate $dir = '; Const EXT = '. TPL '; Private $filename = '; Public function __construct ($dir = ') {$this->dir = $dir  }/** * @desc setting File Cache * @param string $key filename * @para M unkonw $data Cache data * @param int $expire Expiration Time/Public function set ($key, $data, $expire = 0) {$this->filename = dirname (__file__). Self::c_file. $this->dir. $key. Self::ext; if (file_exists ($this->filename)) {$res = $this->get ($key); if (MD5 ($res) = = MD5 (Json_encode ($data)) {return true ; } if (!is_dir (dirname ($this->filename))) {mkdir (dirname ($this->filename), 0777);}   $source = fopen ($this- >filename, ' w+ '); Fwrite ($source, JSon_encode ($data)); Fclose ($source); }  /** * @desc Get file * @param string $key filename */Public function gets ($key) {//$filename = DirName (__file__). Self::c_f ILE. $this->dir. $key. Self::ext; if (!file_exists ($this->filename)) {return ' cached file no longer exists ';} else{$res = file_get_contents ($this->filename);} return $res; /** * @desc Delete file * @param string $key filename/Public Function del ($key) {unlink ($this->filename);}  }   $d ATA = Array (' name ' => ' song ', ' Age ' =>20, ' sex ' => ' mans ', ' favority ' =>array (' apple ', ' banana ')); $cache = new cache (); $cache->set (' cache ', $data); $cache->get (' cache '); $cache->del (' cache ');