10 recommended articles about php substr() function

本文实例讲述了PHP中字符串长度的截取用法。分享给大家供大家参考，具体如下：php中提供了很多使用函数，其中字符串的截取函数也不例外，而且功能也非常强大。这里的编码格式一定得注意，处理不当有可能出现乱码。希望本文所述对大家PHP程序设计有所帮助。更多PHP中字符串长度的截取用法示例

1. 关于substr函数的详细介绍

简介：本文实例讲述了PHP中字符串长度的截取用法。分享给大家供大家参考，具体如下：php中提供了很多使用函数，其中字符串的截取函数也不例外，而且功能也非常强大。<?php//文件编码格式为UTF-8$str='在公园船上,有一个漂亮的女孩，如果在湖中央发生点什么……';echo mb_substr($str,0,7,'UTF-8');//这里设...

2. python爬虫入门（5）--正则表达式实例教程

简介：要想做爬虫，不可避免的要用到正则表达式，如果是简单的字符串处理，类似于split，substring等等就足够了，可是涉及到比较复杂的匹配，当然是正则的天下，下面这篇文章主要给大家介绍了python爬虫之正则表达式的相关资料，需要的朋友可以参考下。

3. 详细概述C#中的常用字符串方法

简介：截取字符串使用substring方法,而该方法在c#中有两个重载函数:substring(参数),substring(参数1,参数2),  用法如下:     string A ="I'm a string"; string B=A.substring(1);     string C=A.substring(1,6);   其中传入的参数1为字符串的起始位置,字符子串B将截取字符串A的第2个字符之后所有的字符.字符子串C将截取字符串A的第2个字符之后的长度为6的字

4. PHP替换字符串函数实例解析

简介：通过字符串的替换技术可以实现对指定字符串中的指定字符进行替换。字符串的替换技术可以通过一下的两个函数实现： str_irplace()函数和substr_replace()函数。

5. PHP截取字符串函数substr()函数实例用法详解

简介：在PHP中有一项非常重要的技术，就是截取指定字符串中指定长度的字符。PHP对于字符串截取可以使用PHP预定义函数substr()函数来实现。

6. JS中的substring和substr方法详解

Introduction: 1. Substring method definition and usage: The substring method is used to extract characters between two specified subscripts in a string. Syntax: stringObject.substring(start,end) Parameter Description: start Required. A nonnegative integer that specifies the position in stringObject of the first character of the substring to be extracted. end Optional. A non-negative integer, ratio to be extracted

7. Several commonly used mysql interception functions

Introduction: Commonly used mysql interception functions are: left(), right(), substring(), substring_index() Let’s explain them one by one: 1. Left interception left( str, length)2. Right intercept right(str, length)3.substring(str, pos); substring(str, pos, len)4.substring_index(str,delim,count)

8. A code for asp.net DES encryption and decryption

##Introduction: / /Encryption public string DesEncrypt(string strText, string strEncrKey) { byte[] byKey=null; byte[] IV= {0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF}; try { byKey = System.Text .Encoding.UTF8.GetBytes(strEncrKey.Substring(0,8)); DES

9. JavaScript string practical operation summary details

Introduction: JavaScript strings are used to store and manipulate text. Therefore, she is always with you when writing JS code. When you process user input data, when you read or set the properties of DOM objects, when you operate Cookies, when you convert various Dates, and so on. It’s too complicated to count; and her many APIs always make people reluctant to remember them. Since I use them frequently, I might as well browse through them with my bad writing, and by the way, it also reflects the value of the existence of the blog, so there is This summary. String interception 1. substring() xString.substrin..

10. PHP method to exchange the values ​​​​of two variables (without the third variable)

Introduction: Preface Today we will take a look at how to use the third variable in PHP without using it. , to achieve the purpose of exchanging the values ​​of two variables. See the code comments for detailed explanation, let’s take a look below. 1. substr() && strlen() code:

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