/***translatesasequenceofutf-8bytestotheir Equivalentunicodecodepoints.*eachcodepointisprefixed with "\u" .** @param string $utf 8** @return string */functionutf8_to_unicode ($utf 8) { $i =0; $l =strlen ($utf 8); $out = "; while ($i This article is from the "7804265" blog, please be sure to keep this source http://7814265.blog.51cto.com/7804265/1862517PHP emoji UTF8 to Unicode
Environment:All character sets for project DB have been initialized to Utf-8, as shown in the status command:Server Characterset:utf8Db Characterset:utf8Client Characterset:utf8Conn. Characterset:utf8First, modify the corresponding project database level character set:Mysql> Show CREATE Database yyf;+----------+--------------------------------------------------------------+| Database | Create Database |+----------+--------------------------------------------------------------+| YYF | CREATE DATA
(I) Preface
In order to cope with opportunities and challenges of the wireless Internet, and to avoid problems caused by emoji,
We recommend that you use the utf8mb4 character set in advance for MySQL databases involving wireless connection.
This must be a key point of technology selection in the mobile Internet industry.
(Ii) Restrictions
Required> = MySQL 5.5.3 and slave database must also be 5.5. Earlier versions do not support this character
(I) Preface
In order to cope with opportunities and challenges of the wireless Internet, and to avoid problems caused by emoji,
We recommend that you use the utf8mb4 character set in advance for MySQL databases involving wireless connection.
This must be a key point of technology selection in the mobile Internet industry.
(Ii) Restrictions
Required> = MySQL 5.5.3 and slave database must also be 5.5. Earlier versions do not support this character set o
How does PHP handle the emoji characters submitted by mobile?
Now the mobile side provides a lot of expressions, such as Baidu Input method in the expression.
A lot of expressions in PHP, after it is not recognized content, when stored in MySQL, it will start from the expression position, the contents of the back will be lost.
such as user input: Start content [Emoticons] End content
Get it in PHP and save it in MySQL only: start content [
Is th
(Val);}Export function Unicodetoarray (val) {Return Val.match (reunicode) | | [];}Export function Asciitoarray (val) {Return Val.split (");}Yes, a lot of regular. It's a headache to watch. This method can be satisfied, the expression is transferred to a portion of the group. In this case, we can only use the judgment array.Then according to the resulting array, go to each one to determine the length of each; The code is as follows:Let Strarr = Utils.toarray (val);Let str = ", strlen = 0, num =
(collate) is not the same, so you need to specify the rules of comparison, utf8mb4_unicode_ci is utf8mb4 the character set corresponding to the comparison rules. For example, if the character set is a utf8mb4 database, execute the SQL statement: select * from boy where name=‘xueweihan‘ you need to filter the records in the database with the specified collate rules.Use PostureTo create a database:CREATE DATABASE mydatabase CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;To connect to a database
Document directory
The first step is to create the necessary directory structure for the custom widget
Step 2: Create an HTML clip to display a single author
Step 3: convert HTML fragments into dijit templates
Step 4: Use dojo. Declare to create a widget class
Step 5: beautify
In this tutorial, we will demonstrate how to use the dojo and dijit frameworks to create custom widgets. Dijit. _
In the original: View SQL Server Internal Data page Widget Internals ViewerView widget for SQL Server Internal Data page Internals ViewerIt feels like the internals viewer is a very good name to see inside.This gadget is the one I saw in the garden before the article was reproduced.Article Address:Heap table, row overflow of SQL Server2008 storage structureHttp://www.cnblogs.com/trams/archive/2010/09/11/182
1. Under the Standby page, click "Application".
2. Click "Utility".
3. Click on "Smart Remote Control".
4. Click the "menu" icon in the upper left corner.
5. Click "Set".
6. Slide up the screen, click on the "Desktop Intelligent Remote Control widget" right slider, orange on behalf of the open.
7. After opening, the Intelligent remote Control widget appe
Since the version of the database is now 5.5.2 , but to look at the Internet to directly store emoji emoticons, you need to upgrade to 5.5.3 and then set the CharSet utf8mb4 , but the upgrade database feels sensitive operation.Consider how long after the direct consideration of using regular to replace, but emoji the expression of the code unicode too much, in the Internet to find a code, or 2 years ago upd
Series Index
Unicode and Emoji
Dictionary tree Trietree and performance testing
Production Practice
After the knowledge of Unicode and Emoji is prepared, this article enters the coding link.
When we know that Emoji is a sequence of Unicode characters, it is natural to understand that Emoji find and sens
The text height calculation in IOS has been a problem, and Apple has been modifying it. Over the past few days, I have read the boundingrectwithsize method.
- (CGRect)boundingRectWithSize:(CGSize)size options:(NSStringDrawingOptions)options context:(NSStringDrawingContext *)context NS_AVAILABLE_IOS(6_0);
After several pitfalls, I finally found a better method.
Http://stackoverflow.com/questions/13621084/boundingrectwithsize-for-nsattributedstring-returning-wrong-size
Notes for use:
1: Each p
An error is returned when the MySQL-emoji emoticons are stored.
Solution: Replace the character set utf8 --> utf8mb4
This article reposted an article published on the public platform.
A developer reported a problem last week: the front-end application crawls Weibo information. A few pieces of data cannot be inserted every day. Application log display: java. SQL. SQLException: Incorrect string value: '\ xF0 \ x9F \ x92 \ xAA ",... 'For column' raw
Ext.: http://www.cnblogs.com/lvyerose/p/4315894.html#3135760such as QQ, social chat, an integral part of our commonly used expression input, and sometimes interesting expression can also attract users to reach the user's permanent effect, of course, we do not have to study how to do the development of how to be interesting, how to do enough to attract users, We just need to make the required functionality perfectly achievable.Next we simply implement the expression input conversion on the Androi
can see that the client, connection, database, result, and server in the configuration are UTF8MB4. In fact, the completion of the 90%, as long as the verification of the know.Very good, no error, the next query, you can see if you can display the normalThis step is also correct!In this way, we have completed the configuration of the database, but it is also important to note that the current operation of the database, data tables, fields are also required to support the UTF8MB4# for each datab
The expression encoding and decoding problem that was encountered while doing the barrageEmoticons are generally encoded using Unicode encoding, followed by the encoded format
\ud83d\ude18\ud83d\ude18world\u4e16\u754chaha\ud83d\ude17 //CodingNSString *unistr =[NSString Stringwithutf8string:[_barragetext.text utf8string]; NSData*unidata =[Unistr datausingencoding:nsnonlossyasciistringencoding]; NSString*goodstr =[[NSString alloc] Initwithdata:unidata encoding:nsutf8stringencoding]; NSLog (@
Solution: Convert the MySQL encoding from UTF8 to UTF8MB4. Requires >= MySQL 5.5.3 version, from the library must be 5.5, the lower version does not support this character set, replication error stop MySQL Server serviceModify MY.CNF or Mysql.ini[Client]Default-character-set = Utf8mb4[MySQL]Default-character-set = Utf8mb4[Mysqld]Character-set-client-handshake = FALSECharacter-set-server = Utf8mb4Collation-server = Utf8mb4_unicode_ciinit_connect= ' SET NAMES utf8mb4 'Restart MySQL Server, check c
MySQL needs to support emoji emoticons version requires greater than 5.5.3, and the character set needs to be set to the UTF8MB4 character set.
What's the difference between utf8mb4 and UTF8? The original MySQL UTF8 a character up to 3 bytes, while UTF8MB4 expands to a character up to 4 bytes, so it can support more character sets.
Converts the MySQL encoding from UTF8 to UTF8MB4.
Need to >= MySQL 5.5.3 version, from the library must also be 5.5, t
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