php一个文件搞定微信jssdk配置

Cache.php
不知道哪位写的源代码~

<?php
class Cache {
 private $cache_path;
 //path for the cache
 private $cache_expire;
 //seconds that the cache expires

 //cache constructor, optional expiring time and cache path
 public function Cache($exp_time = 3600, $path = "cache/") {
  $this -> cache_expire = $exp_time;
  $this -> cache_path = $path;
 }

 //returns the filename for the cache
 private function fileName($key) {
  return $this -> cache_path . md5($key);
 }

 //creates new cache files with the given data, $key== name of the cache, data the info/values to store
 public function put($key, $data) {
  $values = serialize($data);
  $filename = $this -> fileName($key);
  $file = fopen($filename, 'w');
  if ($file) {//able to create the file
   fwrite($file, $values);
   fclose($file);
  } else
   return false;
 }

 //returns cache for the given key
 public function get($key) {
  $filename = $this -> fileName($key);
  if (!file_exists($filename) || !is_readable($filename)) {//can't read the cache
   return false;
  }
  if (time() < (filemtime($filename) + $this -> cache_expire)) {//cache for the key not expired
   $file = fopen($filename, "r");
   // read data file
   if ($file) {//able to open the file
    $data = fread($file, filesize($filename));
    fclose($file);
    return unserialize($data);
    //return the values
   } else
    return false;
  } else
   return false;
  //was expired you need to create new
 }

}
?>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持易采站长站。