Mysql statement for help

The mysql statement is now like this, and finds the total income of the column with the same project code. how to write the SQL statement ,, hope you can help me. thank you. Reply to discussion (solution) Select project code, project name, sum

Ajax two-dimensional array

Ajax two-dimensional array I use ajax to pass a parameter to the PHP page. I need to return a two-dimensional array and then traverse it to return JSON I don't know how to convert it into a PHP array and use foreach to traverse it. Reply to

Solution: phpexcel writes Chinese characters to cells

Solution: phpexcel writes Chinese characters to cells. how can I use phpexcel to write Chinese characters to cells? I used the following code $ ObjPHPExcel-> setActiveSheetIndex (0)-> setCellValue ('B2', ''); But there is no content in cell B2.

Can the following code be abbreviated?

Can the following code be abbreviated? Is there a simple way to implement the following code? I think it is too complicated to write this code. if I write data for a month, wouldn't I need to write 30 cases? Please help me. I am a newbie.

How to update and insert slides

How to update and insert slides Script $ (document ). ready (function () {$ ("# insert "). bind ("click", zj); function zj () {$ ("# insert_zt "). after ("nameUpload images'>Article address") ;}}); Script case

YII Framework GET pass value, the question of the URL display, the title should be long .........

YII Framework GET pass value, the question of the URL display, the title should be long ......... Could you tell me what kind of background URL of YII Framework is like/index. php? R = modules name/controller name/method name If I use get to pass a

How to configure virtualhost in xampp In win7

The virtualhost configuration file for xampp configuration virtualhost in win7 environment is modified as follows: open localhost to enter www.ucobub.com. if you have any questions about the configuration file, please advise. 1. configuration file:

Thinkphp jump page

When I use success to jump to the thinkphp page, illegal operations are always displayed. Do I need to set the configuration file? Is there any method in thinkphp that requires no prompt to jump directly? for example, window. location. href = ""

Beginner's question --- explanation of a parameter

Beginner's question-an example of a parameter explanation for beginner php is shown on the Internet, as shown below: '; Print_r ($ _ POST); print 'Please try again'; print'';} Else {?> I would like to ask my predecessors, what does personal [

Ask questions about preg_replace replacement

Ask the string $ str = 'AA _ cc _ ee 'about preg_replace replacement '; An attempt is made to use the following statement: preg_replace ('/_ {2 }? /', Array ('BB', 'DD'), $ str ); Replace with 'aabbccddee' But all changed to bb. I have added? It

How does mysql_fetch_array block error messages without data?

How does mysql_fetch_array block data-free errors? when I connect to a database using PHP, I use mysql_fetch_array to retrieve database data. If the table in the database has no content, an error message containing at least one element is displayed.

Is there a good open-source phpmysqlclass, similar to medoo?

Is there a good open-source phpmysqlclass, similar to medoo? is there a good open-source php mysql class, similar to medoo? However, medoo does not have functions such as orderby limit. The db class in the CI framework is relatively easy to use,

How to build an environment when developing a News system using tp

When using tp to develop news systems, how can we build an environment? when using tp to develop news systems, how can we build an environment? how can we build databases? What is the structure? Can I use multiple tables? Reply to discussion

Why do people like to use the iframe structure when working on the background? why not jump directly?

Why do people like to use the iframe structure when working on the background? why not jump directly? Why do people like to use the iframe structure when working on the background? why not jump directly? Reply to discussion (solution) You can

[Help] YII Framework cross-application model call

[Help] the company recently used the YII Framework for cross-application model calls. However, there may be problems with the application call model, as shown in the following figure: The model database of Application 1 is connected to db1. The

How to query four pieces of information in a group...

How to query four pieces of information in a group... ID UID TUID MSG 1 120 125 sadasf 2 125 120 adaf 3 120 125 asfafaff 4 125 120 afasfa Effect: Reply to discussion (solution) Describe the requirements in detail based on the group. What is

Is php just a website?

Is php just a website? Is php just a website? If it is better to learn how to plan a career path for php, it is impossible to keep building a website. In addition, I heard that the website generally has background code, but only the front-end page

Parameter garbled by CodeIgniterPHP hyperlink

CodeIgniterPHP hyperlink passing parameter garbled characters "> Modify The url address is not garbled. Test. php control layer Var_dump ($ projectname); garbled characters are displayed. What should I do with prawns? Reply to discussion

Php extracts some characters from the array and sorts them by characters

Php extracts some characters from the array and sorts the characters. assume that there is an array $ a = array ("2013aaa", "2011bb", "2015c "); In fact, this prime group is obtained from the database. the format is the first four words and four

Jquery uploadify plug-in problems

Jquery's uploadify plug-in has just been in touch with the uploadify plug-in and wants to implement a function that can upload multiple files. The specific implementation result is as follows: Click Select File to bring up the file selection

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