F函数bug修正建议
删除缓存也很简单,使用:
F('data',NULL);
复制代码
第二个参数传入NULL,则表示删除标识为data的数据缓存。
支持批量删除功能,尤其是针对子目录缓存的情况,假设我们要删除user子目录下面的所有缓存数据,可以使用:
F('user/*',NULL);
又或者使用过滤条件删除,例如:
F('user/[^a]*',NULL);
文档中说删除子缓存目录内容用F('user/*',NULL);或者F('user/[^a]*',NULL);经测试发现无效。查看系统定义的F函数:function F($name, $value='', $path=DATA_PATH) {<br>
static $_cache = array();<br>
$filename = $path . $name . '.php';<br>
if ('' !== $value) {<br>
if (is_null($value)) {<br>
// 删除缓存<br>
return unlink($filename);<br>
} else {<br>
// 缓存数据<br>
$dir = dirname($filename);<br>
// 目录不存在则创建<br>
if (!is_dir($dir))<br>
mkdir($dir);<br>
return file_put_contents($filename, strip_whitespace("<?php \nreturn " . var_export($value, true) . ";\n?>"));<br>
}<br>
}<br>
if (isset($_cache[$name]))<br>
return $_cache[$name];<br>
// 获取缓存数据<br>
if (is_file($filename)) {<br>
$value = include $filename;<br>
$_cache[$name] = $value;<br>
} else {<br>
$value = false;<br>
}<br>
return $value;<br>
}
当$value为null时执行删除操作即unlink($filename);而$filename = $path . $name . '.php';当我们传入F('user/*',NULL);时,就变成缓存目录/user/*.php,也就是执行了unlink(/user/*.php),而实际并没有这个文件,所以最后没有文件被删除。
改进建议:1。自己获取缓存目录下所有文件名,可以用scandir或者glob函数,然后循环删除。
2。修改F函数,增加对子目录内容的循环判断。或者直接删除缓存子目录
总之F函数没有实现批量删除。
AD:真正免费,域名+虚机+企业邮箱=0元

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



Learn about Python programming with introductory code examples Python is an easy-to-learn, yet powerful programming language. For beginners, it is very important to understand the introductory code examples of Python programming. This article will provide you with some concrete code examples to help you get started quickly. Print HelloWorldprint("HelloWorld") This is the simplest code example in Python. The print() function is used to output the specified content

"Go Language Programming Examples: Code Examples in Web Development" With the rapid development of the Internet, Web development has become an indispensable part of various industries. As a programming language with powerful functions and superior performance, Go language is increasingly favored by developers in web development. This article will introduce how to use Go language for Web development through specific code examples, so that readers can better understand and use Go language to build their own Web applications. 1. Simple HTTP Server First, let’s start with a

The simplest code example of Java bubble sort Bubble sort is a common sorting algorithm. Its basic idea is to gradually adjust the sequence to be sorted into an ordered sequence through the comparison and exchange of adjacent elements. Here is a simple Java code example that demonstrates how to implement bubble sort: publicclassBubbleSort{publicstaticvoidbubbleSort(int[]arr){int

PHP variables store values during program runtime and are crucial for building dynamic and interactive WEB applications. This article takes an in-depth look at PHP variables and shows them in action with 10 real-life examples. 1. Store user input $username=$_POST["username"];$passWord=$_POST["password"]; This example extracts the username and password from the form submission and stores them in variables for further processing. 2. Set the configuration value $database_host="localhost";$database_username="username";$database_pa

Title: From Beginner to Mastery: Code Implementation of Commonly Used Data Structures in Go Language Data structures play a vital role in programming and are the basis of programming. In the Go language, there are many commonly used data structures, and mastering the implementation of these data structures is crucial to becoming a good programmer. This article will introduce the commonly used data structures in the Go language and give corresponding code examples to help readers from getting started to becoming proficient in these data structures. 1. Array Array is a basic data structure, a group of the same type

Huawei Cloud Edge Computing Interconnection Guide: Java Code Samples to Quickly Implement Interfaces With the rapid development of IoT technology and the rise of edge computing, more and more enterprises are beginning to pay attention to the application of edge computing. Huawei Cloud provides edge computing services, providing enterprises with highly reliable computing resources and a convenient development environment, making edge computing applications easier to implement. This article will introduce how to quickly implement the Huawei Cloud edge computing interface through Java code. First, we need to prepare the development environment. Make sure you have the Java Development Kit installed (

How to use PHP to write the inventory management function code in the inventory management system. Inventory management is an indispensable part of many enterprises. For companies with multiple warehouses, the inventory management function is particularly important. By properly managing and tracking inventory, companies can allocate inventory between different warehouses, optimize operating costs, and improve collaboration efficiency. This article will introduce how to use PHP to write code for inventory warehouse management functions, and provide you with relevant code examples. 1. Establish the database before starting to write the code for the inventory warehouse management function.

Java Selection Sorting Method Code Writing Guide and Examples Selection sorting is a simple and intuitive sorting algorithm. The idea is to select the smallest (or largest) element from the unsorted elements each time and exchange it until all elements are sorted. This article will provide a code writing guide for selection sorting, and attach specific Java sample code. Algorithm Principle The basic principle of selection sort is to divide the array to be sorted into two parts, sorted and unsorted. Each time, the smallest (or largest) element is selected from the unsorted part and placed at the end of the sorted part. Repeat the above
