关于匹配本文中几小时几分钟的问题-PHP Tutorial-php.cn

Home

Backend Development

PHP Tutorial

关于匹配本文中几小时几分钟的问题

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

Jun 23, 2016 pm 01:56 PM

match

一段文本可能会出现这样几种情况：
用了 1小时43分钟
用了 1小时
用了 43分钟

要实现的是从文本中匹配出这个时间，即加粗部分
现在想到的正则表达式是preg_match('/([0-9]+小时[0-9]+分钟|[0-9]+小时|[0-9]+分钟)/is', $txt, $matches)
虽然能够正确匹配出想要的结果，但是感觉不够简洁，请问如何改进？

回复讨论(解决方案)

加粗只是视觉效果，分开来加并无影响

$s =<<< TXT一段文本可能会出现这样几种情况：用了1小时43分钟用了1小时用了43分钟TXT;echo preg_replace('/\d+(小时|分钟)/', '<b>$0</b>', $s);

一段文本可能会出现这样几种情况：用了<b>1小时</b><b>43分钟</b>用了<b>1小时</b>用了<b>43分钟</b>

我不是为了加粗，是为了提取出加粗部分这样子的文字。会有三种情况，就是包含小时和分钟、只有小时、只有分钟。

加粗只是视觉效果，分开来加并无影响

$s =<<< TXT一段文本可能会出现这样几种情况：用了1小时43分钟用了1小时用了43分钟TXT;echo preg_replace('/\d+(小时|分钟)/', '<b>$0</b>', $s);

一段文本可能会出现这样几种情况：用了<b>1小时</b><b>43分钟</b>用了<b>1小时</b>用了<b>43分钟</b>

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

How do you create and use an interface in PHP?Apr 30, 2025 pm 03:40 PM

The article explains how to create, implement, and use interfaces in PHP, focusing on their benefits for code organization and maintainability.

What is the difference between crypt() and password_hash()?Apr 30, 2025 pm 03:39 PM

The article discusses the differences between crypt() and password_hash() in PHP for password hashing, focusing on their implementation, security, and suitability for modern web applications.

How can you prevent Cross-Site Scripting (XSS) in PHP?Apr 30, 2025 pm 03:38 PM

Article discusses preventing Cross-Site Scripting (XSS) in PHP through input validation, output encoding, and using tools like OWASP ESAPI and HTML Purifier.

What is autoloading in PHP?Apr 30, 2025 pm 03:37 PM

Autoloading in PHP automatically loads class files when needed, improving performance by reducing memory use and enhancing code organization. Best practices include using PSR-4 and organizing code effectively.

What are PHP streams?Apr 30, 2025 pm 03:36 PM

PHP streams unify handling of resources like files, network sockets, and compression formats via a consistent API, abstracting complexity and enhancing code flexibility and efficiency.

What is the maximum size of a file that can be uploaded using PHP ?Apr 30, 2025 pm 03:35 PM

The article discusses managing file upload sizes in PHP, focusing on the default limit of 2MB and how to increase it by modifying php.ini settings.

What is Nullable types in PHP ?Apr 30, 2025 pm 03:34 PM

The article discusses nullable types in PHP, introduced in PHP 7.1, allowing variables or parameters to be either a specified type or null. It highlights benefits like improved readability, type safety, and explicit intent, and explains how to declar

What is the difference between the unset() and unlink() functions ?Apr 30, 2025 pm 03:33 PM

The article discusses the differences between unset() and unlink() functions in programming, focusing on their purposes and use cases. Unset() removes variables from memory, while unlink() deletes files from the filesystem. Both are crucial for effec

See all articles