原字符串:
la belle
courbe de
Parfait comme
cadeau pour votre amoureux
NOTE
: Laver
à la main
处理后的字符串:
la belle courbe de
Parfait comme cadeau pour votre amoureux
NOTE : Laver à la main
问题:
请问如何写正则
preg_replace();
回复讨论(解决方案)
$arr1=array('#]+>([^\r\n#i', '#
]*>#i', '#?span>\r\n#i');
$arr2=array('$1 ', '
', '');
preg_replace($arr1, $arr2, $str);
\r\n是windows文本换行符,要注意对应文本的格式
没环境测试,自己摸索一下吧
$str1 = '
la belle
courbe de
Parfait comme
cadeau pour votre amoureux
NOTE
: Laver
à la main
$reg = "/||zd=\"(.*)\"|closure_uid_235198886=\"(.*)\"/iU";
$str = preg_replace($reg, '', $str1);
var_dump($str);exit;
$s =<<< TXT<LI> <SPAN id=result_box lang=fr c="4" a="undefined" zd="null" closure_uid_235198886="43"> <SPAN class=hps zd="null" closure_uid_235198886="1391">la belle</SPAN> <SPAN class=hps zd="null" closure_uid_235198886="1392">courbe de</SPAN> <BR zd="null" closure_uid_235198886="1410"> <SPAN class=hps zd="null" closure_uid_235198886="1399">Parfait comme</SPAN> <SPAN class=hps zd="null" closure_uid_235198886="1400">cadeau pour votre amoureux</SPAN> <BR zd="null" closure_uid_235198886="1411"> <SPAN class=hps zd="null" closure_uid_235198886="1401">NOTE</SPAN> <SPAN zd="null" closure_uid_235198886="1402">: Laver</SPAN> <SPAN class=hps zd="null" closure_uid_235198886="1403">à la main</SPAN> </SPAN> <LI>TXT;echo strip_tags($s, '<li><br>');
$str1 = '<LI> <SPAN id=result_box lang=fr c="4" a="undefined" zd="null" closure_uid_235198886="43"> <SPAN class=hps zd="null" closure_uid_235198886="1391">la belle</SPAN> <SPAN class=hps zd="null" closure_uid_235198886="1392">courbe de</SPAN> <BR zd="null" closure_uid_235198886="1410"> <SPAN class=hps zd="null" closure_uid_235198886="1399">Parfait comme</SPAN> <SPAN class=hps zd="null" closure_uid_235198886="1400">cadeau pour votre amoureux</SPAN> <BR zd="null" closure_uid_235198886="1411"> <SPAN class=hps zd="null" closure_uid_235198886="1401">NOTE</SPAN> <SPAN zd="null" closure_uid_235198886="1402">: Laver</SPAN> <SPAN class=hps zd="null" closure_uid_235198886="1403">à la main</SPAN> </SPAN> <LI>';$reg = "/<span(.*)>|<\/span>|zd=\"(.*)\"|closure_uid_235198886=\"(.*)\"/iU";$str = preg_replace($reg, '', $str1);var_dump($str);exit;
$str1 = '<LI> <SPAN id=result_box lang=fr c="4" a="undefined" zd="null" closure_uid_235198886="43"> <SPAN class=hps zd="null" closure_uid_235198886="1391">la belle</SPAN> <SPAN class=hps zd="null" closure_uid_235198886="1392">courbe de</SPAN> <BR zd="null" closure_uid_235198886="1410"> <SPAN class=hps zd="null" closure_uid_235198886="1399">Parfait comme</SPAN> <SPAN class=hps zd="null" closure_uid_235198886="1400">cadeau pour votre amoureux</SPAN> <BR zd="null" closure_uid_235198886="1411"> <SPAN class=hps zd="null" closure_uid_235198886="1401">NOTE</SPAN> <SPAN zd="null" closure_uid_235198886="1402">: Laver</SPAN> <SPAN class=hps zd="null" closure_uid_235198886="1403">à la main</SPAN> </SPAN> <LI>';$reg = "/<span(.*)>|<\/span>|zd=\"(.*)\"|closure_uid_235198886=\"(.*)\"/iU";$str = preg_replace($reg, '', $str1);var_dump($str);exit;
这个没有把
里面的冗余代码去掉。
$s =<<< TXT<LI> <SPAN id=result_box lang=fr c="4" a="undefined" zd="null" closure_uid_235198886="43"> <SPAN class=hps zd="null" closure_uid_235198886="1391">la belle</SPAN> <SPAN class=hps zd="null" closure_uid_235198886="1392">courbe de</SPAN> <BR zd="null" closure_uid_235198886="1410"> <SPAN class=hps zd="null" closure_uid_235198886="1399">Parfait comme</SPAN> <SPAN class=hps zd="null" closure_uid_235198886="1400">cadeau pour votre amoureux</SPAN> <BR zd="null" closure_uid_235198886="1411"> <SPAN class=hps zd="null" closure_uid_235198886="1401">NOTE</SPAN> <SPAN zd="null" closure_uid_235198886="1402">: Laver</SPAN> <SPAN class=hps zd="null" closure_uid_235198886="1403">à la main</SPAN> </SPAN> <LI>TXT;echo strip_tags($s, '<li><br>');
因为我的$s前后都还有HTML代码,这里只是截取了需要替换的部分字符串,所以不能用这种方法,只能用正则。
$patterns = array(
'/]*>/i',
'//i',
'/
]*>/i',
);
$replace = array(
'',
'',
'
',
);
echo preg_replace($patterns, $replace, $str);
这个不错。

TomodifydatainaPHPsession,startthesessionwithsession_start(),thenuse$_SESSIONtoset,modify,orremovevariables.1)Startthesession.2)Setormodifysessionvariablesusing$_SESSION.3)Removevariableswithunset().4)Clearallvariableswithsession_unset().5)Destroythe

Arrays can be stored in PHP sessions. 1. Start the session and use session_start(). 2. Create an array and store it in $_SESSION. 3. Retrieve the array through $_SESSION. 4. Optimize session data to improve performance.

PHP session garbage collection is triggered through a probability mechanism to clean up expired session data. 1) Set the trigger probability and session life cycle in the configuration file; 2) You can use cron tasks to optimize high-load applications; 3) You need to balance the garbage collection frequency and performance to avoid data loss.

Tracking user session activities in PHP is implemented through session management. 1) Use session_start() to start the session. 2) Store and access data through the $_SESSION array. 3) Call session_destroy() to end the session. Session tracking is used for user behavior analysis, security monitoring, and performance optimization.

Using databases to store PHP session data can improve performance and scalability. 1) Configure MySQL to store session data: Set up the session processor in php.ini or PHP code. 2) Implement custom session processor: define open, close, read, write and other functions to interact with the database. 3) Optimization and best practices: Use indexing, caching, data compression and distributed storage to improve performance.

PHPsessionstrackuserdataacrossmultiplepagerequestsusingauniqueIDstoredinacookie.Here'showtomanagethemeffectively:1)Startasessionwithsession_start()andstoredatain$_SESSION.2)RegeneratethesessionIDafterloginwithsession_regenerate_id(true)topreventsessi

In PHP, iterating through session data can be achieved through the following steps: 1. Start the session using session_start(). 2. Iterate through foreach loop through all key-value pairs in the $_SESSION array. 3. When processing complex data structures, use is_array() or is_object() functions and use print_r() to output detailed information. 4. When optimizing traversal, paging can be used to avoid processing large amounts of data at one time. This will help you manage and use PHP session data more efficiently in your actual project.

The session realizes user authentication through the server-side state management mechanism. 1) Session creation and generation of unique IDs, 2) IDs are passed through cookies, 3) Server stores and accesses session data through IDs, 4) User authentication and status management are realized, improving application security and user experience.


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

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

Hot Article

Hot Tools

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment
