請(qǐng)附上代碼

<?php

????//調(diào)用文件操作類
?? ?// include "./resu.class.php";
?? ?//error_reporting(0);
?? ?include "file.php";
?? ?$data= array(
?? ??? ?'id'=>1,
?? ??? ?'name'=>'singwa',
?? ??? ?'type'=>array(4,5,6),
?? ??? ?'test'=>array(1,45,67=>array(1,'45698'),),
?? ?);

?? ?// resu::show(200,'success',$data,'json');
?? ?$file = new File();
?? ?if($file->cacheData('index_mk_cache')){
?? ??? ?var_dump($file->cacheData('index_mk_cache'));exit();
?? ??? ?echo "seccess";
?? ?}else{
?? ??? ?echo 'error';
?? ?}

<?php
?? ?
?? ?class File{
?? ??? ?private $_dir;

?? ??? ?const EXT = '.txt';

?? ??? ?public function __construct() {
?? ??? ??? ?$this->_dir = dirname(__FILE__) . '/files/';
?? ??? ?}
?? ??? ?public function cacheData($key,$value,$path=''){
?? ??? ??? ?$filename = $this->_dir? . $key . self::EXT;
?? ??? ??? ?if($value != '') { // 將value值寫入緩存
?? ??? ??? ??? ?/*if(is_null($value)) {
?? ??? ??? ??? ??? ?return @unlink($filename);
?? ??? ??? ??? ?}*/
?? ??? ??? ?$dir = dirname($filename);
?? ??? ??? ??? ?if(!is_dir($dir)) {
?? ??? ??? ??? ??? ?mkdir($dir, 0777);
?? ??? ??? ??? ?}
?? ??? ??? ??? ?return file_put_contents($filename,json_encode($value));
?? ??? ??? ?}
?? ??? ??? ?if(!is_file($filename)){
?? ??? ??? ??? ?return false;
?? ??? ??? ?}else{
?? ??? ??? ??? ?return json_decode(file_get_contents($filename),true);
?? ??? ??? ?}
?? ??? ?}
?? ?}???