正则表达式小问题
字符串
$str = '[ol5FeByKjdWCdTRjZAuF] 1 @ 2012-06-19 20:46:44';
我想要获取
[ ] 内的内容
]和@之间的内容
@后面的内容
求教正则表达式怎么写……
学校里学的全还给老师了
回复讨论(解决方案)
print_r(preg_split('/[\[\]@]/', $str, -1, PREG_SPLIT_NO_EMPTY));
print_r(preg_split('/[\[\]@]/', $str, -1, PREG_SPLIT_NO_EMPTY));
我现在写成preg_match("/\[(.*?)\] (.*?) @ (\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2})/",$str,$m);、
匹配的结果是
$m=Array ( [0] => [ol5FeByKjdWCdTRjZAuF] 1 @ 2012-06-19 20:46:44 [1] => ol5FeByKjdWCdTRjZAuF [2] => 1 [3] => 2012-06-19 20:46:44 )
怎样修改正则可以使当前结果中的第一项($m[0])去掉
修改正则做不到,你可以用array_shift() 函数将第一个元素删掉。
修改正则做不到,你可以用array_shift() 函数将第一个元素删掉。
算了,这都是小问题了,结贴

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



PHP regular expression verification: Number format detection When writing PHP programs, it is often necessary to verify the data entered by the user. One of the common verifications is to check whether the data conforms to the specified number format. In PHP, you can use regular expressions to achieve this kind of validation. This article will introduce how to use PHP regular expressions to verify number formats and provide specific code examples. First, let’s look at common number format validation requirements: Integers: only contain numbers 0-9, can start with a plus or minus sign, and do not contain decimal points. floating point

To validate email addresses in Golang using regular expressions, follow these steps: Use regexp.MustCompile to create a regular expression pattern that matches valid email address formats. Use the MatchString function to check whether a string matches a pattern. This pattern covers most valid email address formats, including: Local usernames can contain letters, numbers, and special characters: !.#$%&'*+/=?^_{|}~-`Domain names must contain at least One letter, followed by letters, numbers, or hyphens. The top-level domain (TLD) cannot be longer than 63 characters.

In Go, you can use regular expressions to match timestamps: compile a regular expression string, such as the one used to match ISO8601 timestamps: ^\d{4}-\d{2}-\d{2}T \d{2}:\d{2}:\d{2}(\.\d+)?(Z|[+-][0-9]{2}:[0-9]{2})$ . Use the regexp.MatchString function to check if a string matches a regular expression.

As a modern programming language, Go language provides powerful regular expressions and string processing functions, allowing developers to process string data more efficiently. It is very important for developers to master regular expressions and string processing in Go language. This article will introduce in detail the basic concepts and usage of regular expressions in Go language, and how to use Go language to process strings. 1. Regular expressions Regular expressions are a tool used to describe string patterns. They can easily implement operations such as string matching, search, and replacement.

PHP Regular Expressions: Exact Matching and Exclusion Fuzzy inclusion regular expressions are a powerful text matching tool that can help programmers perform efficient search, replacement and filtering when processing text. In PHP, regular expressions are also widely used in string processing and data matching. This article will focus on how to perform exact matching and exclude fuzzy inclusion operations in PHP, and will illustrate it with specific code examples. Exact match Exact match means matching only strings that meet the exact condition, not any variations or extra words.

The method of using regular expressions to verify passwords in Go is as follows: Define a regular expression pattern that meets the minimum password requirements: at least 8 characters, including lowercase letters, uppercase letters, numbers, and special characters. Compile regular expression patterns using the MustCompile function from the regexp package. Use the MatchString method to test whether the input string matches a regular expression pattern.

Regular expression wildcards include ".", "*", "+", "?", "^", "$", "[]", "[^]", "[a-z]", "[A-Z] ","[0-9]","\d","\D","\w","\W","\s&quo

The steps to detect URLs in Golang using regular expressions are as follows: Compile the regular expression pattern using regexp.MustCompile(pattern). Pattern needs to match protocol, hostname, port (optional), path (optional) and query parameters (optional). Use regexp.MatchString(pattern,url) to detect whether the URL matches the pattern.
