php代码看得懂却写不出来，为什么，我在w3school中学习，看到一个上传文件的代码，该代码中具有限制用户上传不指定的格式的功能。代码写得非常清楚易懂。
当我关闭chrome浏览器，尝试自己写的时候，却出现了巨大的困难，我该如何解决这样的局面，请php前辈们指点，我是真想学好它。。
回复讨论(解决方案)
那就是没看懂?
那就是没看懂?
+1
虽然和LZ的“看懂”是两个概念，但#1所说的更重要
我给的建议是找个软件，画一画你所看到的代码流程图（有能力是画UML，但估计你还不懂UML）
这个办法因人而异，对我是比较有用，因为我自小写文章就习惯打草稿，即使是短短的百字文
再看一遍，比着写吧
就拿你说的这个例子为例
当你关闭浏览器打开编辑器准备写代码,遇到问题时,先不要着急,把自己遇到的问题,逐条记下来
比方说, if/else没问题 那么接下来获取和分析后缀的代码,有没有问题?能不能写出来?
如果不能,罗列到纸上,一条条.
那么这个有问题的列表,也就是你还没记住的功能点.
再打开浏览器,把这些功能点一一看明白,就差不多了.
除了过目不忘的，没有谁刚开始看一眼就能写出来的，你可以先试着写思路，写伪代码。
同意#5 先有思路，再写代码
Working with Flash Session Data in LaravelMar 12, 2025 pm 05:08 PMLaravel simplifies handling temporary session data using its intuitive flash methods. This is perfect for displaying brief messages, alerts, or notifications within your application. Data persists only for the subsequent request by default: $request-
cURL in PHP: How to Use the PHP cURL Extension in REST APIsMar 14, 2025 am 11:42 AMThe PHP Client URL (cURL) extension is a powerful tool for developers, enabling seamless interaction with remote servers and REST APIs. By leveraging libcurl, a well-respected multi-protocol file transfer library, PHP cURL facilitates efficient execution of various network protocols, including HTTP, HTTPS, and FTP. This extension offers granular control over HTTP requests, supports multiple concurrent operations, and provides built-in security features.
Simplified HTTP Response Mocking in Laravel TestsMar 12, 2025 pm 05:09 PMLaravel provides concise HTTP response simulation syntax, simplifying HTTP interaction testing. This approach significantly reduces code redundancy while making your test simulation more intuitive. The basic implementation provides a variety of response type shortcuts: use Illuminate\Support\Facades\Http; Http::fake([ 'google.com' => 'Hello World', 'github.com' => ['foo' => 'bar'], 'forge.laravel.com' =>
12 Best PHP Chat Scripts on CodeCanyonMar 13, 2025 pm 12:08 PMDo you want to provide real-time, instant solutions to your customers' most pressing problems? Live chat lets you have real-time conversations with customers and resolve their problems instantly. It allows you to provide faster service to your custom
PHP Logging: Best Practices for PHP Log AnalysisMar 10, 2025 pm 02:32 PMPHP logging is essential for monitoring and debugging web applications, as well as capturing critical events, errors, and runtime behavior. It provides valuable insights into system performance, helps identify issues, and supports faster troubleshoot
Explain the concept of late static binding in PHP.Mar 21, 2025 pm 01:33 PMArticle discusses late static binding (LSB) in PHP, introduced in PHP 5.3, allowing runtime resolution of static method calls for more flexible inheritance.Main issue: LSB vs. traditional polymorphism; LSB's practical applications and potential perfo
Discover File Downloads in Laravel with Storage::downloadMar 06, 2025 am 02:22 AMThe Storage::download method of the Laravel framework provides a concise API for safely handling file downloads while managing abstractions of file storage. Here is an example of using Storage::download() in the example controller:
How to Register and Use Laravel Service ProvidersMar 07, 2025 am 01:18 AMLaravel's service container and service providers are fundamental to its architecture. This article explores service containers, details service provider creation, registration, and demonstrates practical usage with examples. We'll begin with an ove
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
SublimeText3 English version
Recommended: Win version, supports code prompts!
DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software
mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
Notepad++7.3.1
Easy-to-use and free code editor
PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool
