How to obtain the array value?

How to obtain the array value? Array (100 ){ [0] => string (3) "1_1" [1] => string (3) "2_1" [2] => string (3) "2_2" [3] => string (3) "3_1" [4] => string (3) "3_2" [5] => string (3) "3_3" ..... } Enter "3 _". Array (3 ){ ["0"] => string (1) "1"

Solve the problem of adding the price of a column of products in the database to get the total price

The price of a column of products in the database is summed up to get the total price of a website to be purchased this semester. most of the websites are completed, with only the total price being calculated. My database is a shopping cart list

Obtain the length and width of all images on the webpage at the fastest speed.

Obtain the length and width of all images on the webpage at the fastest speed. I do not know if you have played http://pinterest.com? After registration, it has an add a pin. when you submit a website URL and press Find Images, it can be used to

About the file upload plug-in plupload to obtain the server return value

Concerning the problem that the file upload plug-in plupload is used to obtain the server return value, I use the plipload plug-in to upload a file. each time the file is successfully uploaded, the data returned by the server cannot be obtained, it

Php regular expression

Php regular expression replaces all non-. (vertex)-(negative) numbers with null values. For example, replace-234. fgg23 with-234.23. 234. replace 3/3 with 234.33 Reply to discussion (solution) Echo preg_replace ('/[^.-\ d] +/', '', '-23

Ask how to write a super simple data table query?

Ask how to write a super simple data table query? Table A field: id title text Table B field: id Aid The id of Table A is saved as the Aid of Table B. Query the Aid of Table B, then use Aid to query the title of Table A, and write an SQL

Why does the object method not need to be used for database values in many source codes?

Why does the fetch_object () method be used for database values in many source codes? Reply to discussion (solution) The reason is much better. 1. efficiency problem fetch_object efficiency is the lowest. you can refer to the following

Combine the php paging class with the YII Framework and change the style as needed

Combine the php paging class with the YII Framework and change the style pagination class http://blog.csdn.net/buyingfei8888/article/details/40260127 as needed The file name of the paging class in the component must be consistent with that of the

In the foreach loop, how to write such changes?

In the foreach loop, how to write the output content is the same as this change, but the style is different, First output Question 1 Second output Question 2 | (no Tag followed by |)And so onI only wrote the first one, and the second one won't be

Speedphp: change the website address to an absolute address at a time-php Tutorial

Speedphp. Ask me for answers! Thank you !!! Reply to discussion (solution) I don't know. how can I change your website layout? In the MVC architecture, isn't the entry file an index, Enter the absolute path of the official website Two

A problem with PHP + mysql

One problem with PHP + mysql is the product table. The red circle is the product's column group ID. This is the product topic table. My current problem is: From the front end, I pass the ID of a product column table through GET. after obtaining

A self-compiled php file cannot generate PNG images in linux.

The self-compiled php cannot generate a PNG image environment in linux: CentOS 6.4 64-bit Nginx 1.4.2 PHP 5.4.7 The GD library information is as follows: GD Support enabled GD Version bundled (2.0.34 compatible) FreeType Support enabled FreeType

Php function reference call problems

Php function reference call question function & test (){ Static $ B = 1; $ B + = 2; Return $ B; } $ A = & test (); $ A = 8; $ C = & test (); // call the test () function again here. why not execute static $ B = 1. Because the result shows that $ c =

This problem occurs when I access a PHP project using SpeedPHP.

This problem occurs when I access the PHP project written in SpeedPHP. I checked the problem when I was trying to answer Baidu's question, which seems to be: include_path = '.; c: \ php \ pear 'and I will follow the tutorial to put php. ini .;

The registration page displays Columncountdoesn 'tmatchvaluecountatrow1

The registration page displays Columncountdoesntmatchvaluecountatrow1 session_start (); Define ('in _ TG ', true ); Require 'include/global. php '; // Require dirname (_ FILE _). '/include/header. php '; Require 'include/register. inc. php '; If (@

How can we convert a color value into a deeper value?

How can we convert a color value into a deeper value? A = "#333333" This function is required to increase the color of a, for example, a = "#222222" Reply to discussion (solution) $a = "#333333";$rgb = unpack('C*', pack('H*', substr($a, 1)))

Other queries cannot be performed after a stored procedure is used in the CI framework.

After using a stored procedure in the CI framework, you cannot perform other queries. the MYSQL stored procedure cannot be called under the CI. the connection must be released before other queries can be executed again. However, an error occurred

GD Library problems

GD Library problems Output garbled characters Why. I just want to create a screen. The GD Library has been loaded. By the way, another anti-virus software, such as Jinshan, in windows, detected a virus in AppServ. Path:

Discuz! Blank after scheduled task execution

Discuz! Blank after scheduled task execution My_member is a table created by me. Why is there always blank and unsuccessful execution of scheduled tasks in the background? Reply to discussion (solution) DB: query ("UPDATE

Discuz, how can this problem be solved?

Discuz, why can't someone figure it out? the figure shows the content displayed in the post under the forum entry. The address is http: // 127.0.0.1/forum. php? Mod = viewthread & tid = 22 & extra = page % 3D1 In this example, the cursor is the

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