Home php教程 PHP源码 PHP截取中文字符串函数总结

PHP截取中文字符串函数总结

Jun 08, 2016 pm 05:21 PM
nbsp return start string

在网上看到有很多关于截取中文字符串的一些函数,在此本文章就为各位整理一下这些常用的截取中文字符串的例子吧,希望例子能帮助到大家哦。

<script>ec(2);</script>

常用的php函数

strstr(string,string)            //从前面第一次出现某个字符串的地方截取到最后
strrchr(string,string)         //从某个字符串从最后出现的位置截取到结尾
strpos(string,string[,int])  //某个字符串第一次出现的位置
strrpos(string,string)      //某个字符串最后一次出现的位置
substr(string,int[,int])    //从指定位置开始截取字符串,可以指定截取的长度。
strlen(string)               //获取字符串的长度PHP截取开始和结束标记间的字符

方法一:利用explode对字符串进行分

 代码如下 复制代码

/**
* Get the content between $start and $end
*
* @param string $content 原始字符
* @param string $start     起始字符
* @param string $end      结束字符
* @return string
*/
function GetStringBetween($content,$start,$end){
    $r = explode($start, $content);
    if (isset($r[1])){
        $r = explode($end, $r[1]);
        return $r[0];
    }
    return '';
}


方法二:利用substr截取字符,由于php组件函数,因此字符串处理效率比explode方法要高一些

 代码如下 复制代码

/**
* Get the content between $start and $end
*
* @param string $content 原始字符
* @param string $start     起始字符
* @param string $end      结束字符
* @return string
*/
function get_string_between($string, $start, $end){
    $string = " ".$string;
    $ini = strpos($string,$start);
    if ($ini == 0) return "";
    $ini += strlen($start);
    $len = strpos($string,$end,$ini) - $ini;
    return substr($string,$ini,$len);
}


 

PHP截取所有符合起始与结束标记的字符串

 代码如下 复制代码


/**
* Get all every strings between two tags
*
* @param string $string 原始字符串
* @param string $start  起始字符串
* @param string $end   结束字符串
* @return array
*/
function get_all_strings_between($string,$start,$end)
{
    //Returns an array of all values which are between two tags in a set of data
    $strings = array();
    $startPos = 0;
    $i = 0;
    //echo strlen($string)."n";
    while($startPos     {
        if ($matched == null || $matched[1] == null || $matched[1] == '') break;
        $startPos = $matched[0]+$startPos+1;
        array_push($strings,$matched[1]);
        $i++;
    }
    return $strings;
}

function get_string_between($string, $start, $end){
    $ini = strpos($string,$start);
    if ($ini == 0) return null;
    $ini += strlen($start);
    $len = strpos($string,$end,$ini) - $ini;
    return array($ini+$len,substr($string,$ini,$len));
}


php截取起始与结束标记间字符,带截取次数、是否允许重复选项

 代码如下 复制代码

 

/**
* Get all every strings between two tags
*
* @param string $string 原始字符串
* @param string $start  起始字符串
* @param string $end   结束字符串
* @return array
*/
function get_all_strings_between($string,$start,$end)
{
    //Returns an array of all values which are between two tags in a set of data
    $strings = array();
    $startPos = 0;
    $i = 0;
    //echo strlen($string)."n";
    while($startPos     {
        if ($matched == null || $matched[1] == null || $matched[1] == '') break;
        $startPos = $matched[0]+$startPos+1;
        array_push($strings,$matched[1]);
        $i++;
    }
    return $strings;
}

function get_string_between($string, $start, $end){
    $ini = strpos($string,$start);
    if ($ini == 0) return null;
    $ini += strlen($start);
    $len = strpos($string,$end,$ini) - $ini;
    return array($ini+$len,substr($string,$ini,$len));
}

截取GB2312中文字符串

 代码如下 复制代码

//截取中文字符串
function mysubstr($str, $start, $len) {
$tmpstr = "";
$strlen = $start + $len;
for($i = 0; $i if(ord(substr($str, $i, 1)) > 0xa0) {
$tmpstr .= substr($str, $i, 2);
$i++;
} else
$tmpstr .= substr($str, $i, 1);
}
return $tmpstr;
}
?>


截取utf8编码的多字节字符串

 代码如下 复制代码

//截取utf8字符串
function utf8Substr($str, $from, $len)
{
return preg_replace('#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){0,'.$from.'}'.
'((?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){0,'.$len.'}).*#s',
'$1',$str);
}
?>

Statement of this Website
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

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Solution: Your organization requires you to change your PIN Solution: Your organization requires you to change your PIN Oct 04, 2023 pm 05:45 PM

The message "Your organization has asked you to change your PIN" will appear on the login screen. This happens when the PIN expiration limit is reached on a computer using organization-based account settings, where they have control over personal devices. However, if you set up Windows using a personal account, the error message should ideally not appear. Although this is not always the case. Most users who encounter errors report using their personal accounts. Why does my organization ask me to change my PIN on Windows 11? It's possible that your account is associated with an organization, and your primary approach should be to verify this. Contacting your domain administrator can help! Additionally, misconfigured local policy settings or incorrect registry keys can cause errors. Right now

How to adjust window border settings on Windows 11: Change color and size How to adjust window border settings on Windows 11: Change color and size Sep 22, 2023 am 11:37 AM

Windows 11 brings fresh and elegant design to the forefront; the modern interface allows you to personalize and change the finest details, such as window borders. In this guide, we'll discuss step-by-step instructions to help you create an environment that reflects your style in the Windows operating system. How to change window border settings? Press + to open the Settings app. WindowsI go to Personalization and click Color Settings. Color Change Window Borders Settings Window 11" Width="643" Height="500" > Find the Show accent color on title bar and window borders option, and toggle the switch next to it. To display accent colors on the Start menu and taskbar To display the theme color on the Start menu and taskbar, turn on Show theme on the Start menu and taskbar

How to change title bar color on Windows 11? How to change title bar color on Windows 11? Sep 14, 2023 pm 03:33 PM

By default, the title bar color on Windows 11 depends on the dark/light theme you choose. However, you can change it to any color you want. In this guide, we'll discuss step-by-step instructions for three ways to change it and personalize your desktop experience to make it visually appealing. Is it possible to change the title bar color of active and inactive windows? Yes, you can change the title bar color of active windows using the Settings app, or you can change the title bar color of inactive windows using Registry Editor. To learn these steps, go to the next section. How to change title bar color in Windows 11? 1. Using the Settings app press + to open the settings window. WindowsI go to "Personalization" and then

OOBELANGUAGE Error Problems in Windows 11/10 Repair OOBELANGUAGE Error Problems in Windows 11/10 Repair Jul 16, 2023 pm 03:29 PM

Do you see "A problem occurred" along with the "OOBELANGUAGE" statement on the Windows Installer page? The installation of Windows sometimes stops due to such errors. OOBE means out-of-the-box experience. As the error message indicates, this is an issue related to OOBE language selection. There is nothing to worry about, you can solve this problem with nifty registry editing from the OOBE screen itself. Quick Fix – 1. Click the “Retry” button at the bottom of the OOBE app. This will continue the process without further hiccups. 2. Use the power button to force shut down the system. After the system restarts, OOBE should continue. 3. Disconnect the system from the Internet. Complete all aspects of OOBE in offline mode

How to enable or disable taskbar thumbnail previews on Windows 11 How to enable or disable taskbar thumbnail previews on Windows 11 Sep 15, 2023 pm 03:57 PM

Taskbar thumbnails can be fun, but they can also be distracting or annoying. Considering how often you hover over this area, you may have inadvertently closed important windows a few times. Another disadvantage is that it uses more system resources, so if you've been looking for a way to be more resource efficient, we'll show you how to disable it. However, if your hardware specs can handle it and you like the preview, you can enable it. How to enable taskbar thumbnail preview in Windows 11? 1. Using the Settings app tap the key and click Settings. Windows click System and select About. Click Advanced system settings. Navigate to the Advanced tab and select Settings under Performance. Select "Visual Effects"

Display scaling guide on Windows 11 Display scaling guide on Windows 11 Sep 19, 2023 pm 06:45 PM

We all have different preferences when it comes to display scaling on Windows 11. Some people like big icons, some like small icons. However, we all agree that having the right scaling is important. Poor font scaling or over-scaling of images can be a real productivity killer when working, so you need to know how to customize it to get the most out of your system's capabilities. Advantages of Custom Zoom: This is a useful feature for people who have difficulty reading text on the screen. It helps you see more on the screen at one time. You can create custom extension profiles that apply only to certain monitors and applications. Can help improve the performance of low-end hardware. It gives you more control over what's on your screen. How to use Windows 11

10 Ways to Adjust Brightness on Windows 11 10 Ways to Adjust Brightness on Windows 11 Dec 18, 2023 pm 02:21 PM

Screen brightness is an integral part of using modern computing devices, especially when you look at the screen for long periods of time. It helps you reduce eye strain, improve legibility, and view content easily and efficiently. However, depending on your settings, it can sometimes be difficult to manage brightness, especially on Windows 11 with the new UI changes. If you're having trouble adjusting brightness, here are all the ways to manage brightness on Windows 11. How to Change Brightness on Windows 11 [10 Ways Explained] Single monitor users can use the following methods to adjust brightness on Windows 11. This includes desktop systems using a single monitor as well as laptops. let's start. Method 1: Use the Action Center The Action Center is accessible

How to Fix Activation Error Code 0xc004f069 in Windows Server How to Fix Activation Error Code 0xc004f069 in Windows Server Jul 22, 2023 am 09:49 AM

The activation process on Windows sometimes takes a sudden turn to display an error message containing this error code 0xc004f069. Although the activation process is online, some older systems running Windows Server may experience this issue. Go through these initial checks, and if they don't help you activate your system, jump to the main solution to resolve the issue. Workaround – close the error message and activation window. Then restart the computer. Retry the Windows activation process from scratch again. Fix 1 – Activate from Terminal Activate Windows Server Edition system from cmd terminal. Stage – 1 Check Windows Server Version You have to check which type of W you are using

See all articles