处理获取到的大量html数据-PHP Tutorial-php.cn

Home

Backend Development

PHP Tutorial

处理获取到的大量html数据

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

Jun 23, 2016 pm 01:47 PM

获取到一大堆的html数据，大概有3万个字符的大小。但是前面没用的，只有后面几千字符是有用的，想从里面提取数据。如果直接用正则去处理就浪费了很多资源，有没有什么方法可以从字符串的最后面开始正则，然后取到某个地方就停止。
刚刚一开始尝试用simple_html_dom类来处理，但是后来卡住了...
因为每次去到的东西都不一定长短，所以直接截取固定数量的长度的字符这个方法不太好。

回复讨论(解决方案)

既然你并不能准确的你需要的内容从什么位置开始，那么就不存在资源浪费的问题

获取html
file_get_contents
curl

正则解析html，可以获取想要的文本。

没什么好办法，因为你要过滤数据，要么正则匹配，要么用你用的那个类。

Statement

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Working with Flash Session Data in LaravelMar 12, 2025 pm 05:08 PM

Laravel 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 AM

The 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 PM

Laravel 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 PM

Do 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

Explain the concept of late static binding in PHP.Mar 21, 2025 pm 01:33 PM

Article 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

PHP Logging: Best Practices for PHP Log AnalysisMar 10, 2025 pm 02:32 PM

PHP 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

Discover File Downloads in Laravel with Storage::downloadMar 06, 2025 am 02:22 AM

The 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:

HTTP Method Verification in LaravelMar 05, 2025 pm 04:14 PM

Laravel simplifies HTTP verb handling in incoming requests, streamlining diverse operation management within your applications. The method() and isMethod() methods efficiently identify and validate request types. This feature is crucial for building

See all articles